{"id":"CVE-2020-29571","aliases":["ALPINE-CVE-2020-29571","DEBIAN-CVE-2020-29571","DSA-4812-1","EUVD-2020-21933","GHSA-26rg-mq58-rxvm","SUSE-SU-2020:14578-1","SUSE-SU-2020:3880-1","SUSE-SU-2020:3881-1","SUSE-SU-2020:3913-1","SUSE-SU-2020:3914-1","SUSE-SU-2020:3915-1","SUSE-SU-2020:3916-1","SUSE-SU-2020:3945-1","UBUNTU-CVE-2020-29571","openSUSE-SU-2020:2313-1","openSUSE-SU-2020:2331-1","openSUSE-SU-2024:11520-1"],"status":"published","title":"An issue was discovered in Xen through 4.14.x. A bounds check common to most operation time...","description":"An issue was discovered in Xen through 4.14.x. A bounds check common to most operation time functions specific to FIFO event channels depends on the CPU observing consistent state. While the producer side uses appropriately ordered writes, the consumer side isn't protected against re-ordered reads, and may hence end up de-referencing a NULL pointer. Malicious or buggy guest kernels can mount a Denial of Service (DoS) attack affecting the entire system. Only Arm systems may be vulnerable. Whether a system is vulnerable depends on the specific CPU. x86 systems are not vulnerable.","severity":{"version":"3.1","score":6.2,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-11","score":0.00387,"percentile":0.33261,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-476"],"published":"2020-12-15T00:00:00Z","modified":"2026-10-26T12:02:48Z","fixes":[{"ecosystem":"Alpine:v3.11","package":"xen","fixed_in":["4.13.2-r3"],"sources":["osv"]},{"ecosystem":"Alpine:v3.12","package":"xen","fixed_in":["4.13.2-r3"],"sources":["osv"]},{"ecosystem":"Alpine:v3.13","package":"xen","fixed_in":["4.14.1-r0"],"sources":["osv"]},{"ecosystem":"Alpine:v3.14","package":"xen","fixed_in":["4.14.1-r0"],"sources":["osv"]},{"ecosystem":"Alpine:v3.15","package":"xen","fixed_in":["4.14.1-r0"],"sources":["osv"]},{"ecosystem":"Alpine:v3.16","package":"xen","fixed_in":["4.14.1-r0"],"sources":["osv"]},{"ecosystem":"Alpine:v3.17","package":"xen","fixed_in":["4.14.1-r0"],"sources":["osv"]},{"ecosystem":"Alpine:v3.18","package":"xen","fixed_in":["4.14.1-r0"],"sources":["osv"]},{"ecosystem":"Alpine:v3.19","package":"xen","fixed_in":["4.14.1-r0"],"sources":["osv"]},{"ecosystem":"Alpine:v3.20","package":"xen","fixed_in":["4.14.1-r0"],"sources":["osv"]},{"ecosystem":"Alpine:v3.21","package":"xen","fixed_in":["4.14.1-r0"],"sources":["osv"]},{"ecosystem":"Alpine:v3.22","package":"xen","fixed_in":["4.14.1-r0"],"sources":["osv"]},{"ecosystem":"Alpine:v3.23","package":"xen","fixed_in":["4.14.1-r0"],"sources":["osv"]},{"ecosystem":"Alpine:v3.24","package":"xen","fixed_in":["4.14.1-r0"],"sources":["osv"]},{"ecosystem":"Debian:12","package":"xen","fixed_in":["4.14.0+88-g1d1d1f5391-1"],"sources":["osv"]},{"ecosystem":"Debian:13","package":"xen","fixed_in":["4.14.0+88-g1d1d1f5391-1"],"sources":["osv"]},{"ecosystem":"Debian:14","package":"xen","fixed_in":["4.14.0+88-g1d1d1f5391-1"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Alpine:v3.11","package":"xen","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"4.4.0"},{"fixed":"4.13.2-r3"}]}]},{"source":"osv","ecosystem":"Alpine:v3.12","package":"xen","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"4.4.0"},{"fixed":"4.13.2-r3"}]}]},{"source":"osv","ecosystem":"Alpine:v3.13","package":"xen","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"4.4.0"},{"fixed":"4.14.1-r0"}]}]},{"source":"osv","ecosystem":"Alpine:v3.14","package":"xen","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"4.4.0"},{"fixed":"4.14.1-r0"}]}]},{"source":"osv","ecosystem":"Alpine:v3.15","package":"xen","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"4.4.0"},{"fixed":"4.14.1-r0"}]}]},{"source":"osv","ecosystem":"Alpine:v3.16","package":"xen","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"4.4.0"},{"fixed":"4.14.1-r0"}]}]},{"source":"osv","ecosystem":"Alpine:v3.17","package":"xen","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"4.4.0"},{"fixed":"4.14.1-r0"}]}]},{"source":"osv","ecosystem":"Alpine:v3.18","package":"xen","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"4.4.0"},{"fixed":"4.14.1-r0"}]}]},{"source":"osv","ecosystem":"Alpine:v3.19","package":"xen","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"4.4.0"},{"fixed":"4.14.1-r0"}]}]},{"source":"osv","ecosystem":"Alpine:v3.20","package":"xen","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"4.4.0"},{"fixed":"4.14.1-r0"}]}]},{"source":"osv","ecosystem":"Alpine:v3.21","package":"xen","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"4.4.0"},{"fixed":"4.14.1-r0"}]}]},{"source":"osv","ecosystem":"Alpine:v3.22","package":"xen","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"4.4.0"},{"fixed":"4.14.1-r0"}]}]},{"source":"osv","ecosystem":"Alpine:v3.23","package":"xen","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"4.4.0"},{"fixed":"4.14.1-r0"}]}]},{"source":"osv","ecosystem":"Alpine:v3.24","package":"xen","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"4.4.0"},{"fixed":"4.14.1-r0"}]}]},{"source":"osv","ecosystem":"Debian:12","package":"xen","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.14.0+88-g1d1d1f5391-1"}]}]},{"source":"osv","ecosystem":"Debian:13","package":"xen","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.14.0+88-g1d1d1f5391-1"}]}]},{"source":"osv","ecosystem":"Debian:14","package":"xen","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.14.0+88-g1d1d1f5391-1"}]}]},{"source":"osv","ecosystem":"Debian:10","package":"xen","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.11.4+57-g41a822c392-2"}]}],"versions":["4.11.1+92-g6c33308a8d-2","4.11.3+24-g14b62ab3e5-1","4.11.3+24-g14b62ab3e5-1~deb10u1","4.11.4+24-gddaaccbbab-1","4.11.4+24-gddaaccbbab-1~deb10u1","4.11.4+37-g3263f257ca-1","4.11.4+57-g41a822c392-1","4.11.4-1"],"bundled":11},{"source":"osv","ecosystem":"SUSE:Linux Enterprise Server 11 SP4-LTSS","package":"xen","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.4.4_48-61.61.1"}]}],"bundled":8},{"source":"osv","ecosystem":"SUSE:Linux Enterprise Software Development Kit 12 SP5","package":"xen","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.12.4_06-3.36.1"}]}],"bundled":9},{"source":"osv","ecosystem":"SUSE:Linux Enterprise Server 12 SP5","package":"xen","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.12.4_06-3.36.1"}]}],"bundled":9},{"source":"osv","ecosystem":"SUSE:Linux Enterprise Server for SAP Applications 12 SP5","package":"xen","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.12.4_06-3.36.1"}]}],"bundled":9},{"source":"osv","ecosystem":"SUSE:Linux Enterprise Module for Basesystem 15 SP1","package":"xen","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.12.4_06-3.40.1"}]}],"bundled":7},{"source":"osv","ecosystem":"SUSE:Linux Enterprise Module for Server Applications 15 SP1","package":"xen","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.12.4_06-3.40.1"}]}],"bundled":7},{"source":"osv","ecosystem":"SUSE:OpenStack Cloud 7","package":"xen","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.7.6_14-43.73.1"}]}],"bundled":8},{"source":"osv","ecosystem":"SUSE:Linux Enterprise Server for SAP Applications 12 SP2","package":"xen","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.7.6_14-43.73.1"}]}],"bundled":8},{"source":"osv","ecosystem":"SUSE:Linux Enterprise Server 12 SP2-LTSS","package":"xen","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.7.6_14-43.73.1"}]}],"bundled":8},{"source":"osv","ecosystem":"SUSE:Linux Enterprise Server 12 SP2-BCL","package":"xen","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.7.6_14-43.73.1"}]}],"bundled":8},{"source":"osv","ecosystem":"SUSE:OpenStack Cloud 9","package":"xen","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.11.4_16-2.48.1"}]}],"bundled":8},{"source":"osv","ecosystem":"SUSE:OpenStack Cloud Crowbar 9","package":"xen","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.11.4_16-2.48.1"}]}],"bundled":8},{"source":"osv","ecosystem":"SUSE:Linux Enterprise Server for SAP Applications 12 SP4","package":"xen","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.11.4_16-2.48.1"}]}],"bundled":8},{"source":"osv","ecosystem":"SUSE:Linux Enterprise Server 12 SP4-LTSS","package":"xen","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.11.4_16-2.48.1"}]}],"bundled":8},{"source":"osv","ecosystem":"SUSE:Linux Enterprise Module for Basesystem 15 SP2","package":"xen","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.13.2_06-3.22.1"}]}],"bundled":7},{"source":"osv","ecosystem":"SUSE:Linux Enterprise Module for Server Applications 15 SP2","package":"xen","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.13.2_06-3.22.1"}]}],"bundled":7},{"source":"osv","ecosystem":"SUSE:Linux Enterprise High Performance Computing 15-ESPOS","package":"xen","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.10.4_24-3.53.1"}]}],"bundled":7},{"source":"osv","ecosystem":"SUSE:Linux Enterprise High Performance Computing 15-LTSS","package":"xen","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.10.4_24-3.53.1"}]}],"bundled":7},{"source":"osv","ecosystem":"SUSE:Linux Enterprise Server for SAP Applications 15","package":"xen","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.10.4_24-3.53.1"}]}],"bundled":7},{"source":"osv","ecosystem":"SUSE:HPE Helion OpenStack 8","package":"xen","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.9.4_16-3.80.1"}]}],"bundled":8},{"source":"osv","ecosystem":"SUSE:OpenStack Cloud 8","package":"xen","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.9.4_16-3.80.1"}]}],"bundled":8},{"source":"osv","ecosystem":"SUSE:OpenStack Cloud Crowbar 8","package":"xen","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.9.4_16-3.80.1"}]}],"bundled":8},{"source":"osv","ecosystem":"SUSE:Linux Enterprise Server for SAP Applications 12 SP3","package":"xen","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.9.4_16-3.80.1"}]}],"bundled":8},{"source":"osv","ecosystem":"SUSE:Linux Enterprise Server 12 SP3-LTSS","package":"xen","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.9.4_16-3.80.1"}]}],"bundled":8},{"source":"osv","ecosystem":"SUSE:Linux Enterprise Server 12 SP3-BCL","package":"xen","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.9.4_16-3.80.1"}]}],"bundled":8},{"source":"osv","ecosystem":"SUSE:Enterprise Storage 5","package":"xen","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.9.4_16-3.80.1"}]}],"bundled":8},{"source":"osv","ecosystem":"Ubuntu:16.04:LTS","package":"xen","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["4.5.1-0ubuntu1","4.5.1-0ubuntu2","4.6.0-1ubuntu1","4.6.0-1ubuntu2","4.6.0-1ubuntu4","4.6.0-1ubuntu4.1","4.6.0-1ubuntu4.2","4.6.0-1ubuntu4.3","4.6.5-0ubuntu1","4.6.5-0ubuntu1.1","4.6.5-0ubuntu1.2","4.6.5-0ubuntu1.4"]},{"source":"osv","ecosystem":"Ubuntu:18.04:LTS","package":"xen","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["4.9.0-0ubuntu3","4.9.0-0ubuntu4","4.9.2-0ubuntu1"]},{"source":"osv","ecosystem":"Ubuntu:20.04:LTS","package":"xen","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["4.9.2-0ubuntu2","4.9.2-0ubuntu6","4.9.2-0ubuntu7","4.11.3+24-g14b62ab3e5-1ubuntu1","4.11.3+24-g14b62ab3e5-1ubuntu2","4.11.3+24-g14b62ab3e5-1ubuntu2.2","4.11.3+24-g14b62ab3e5-1ubuntu2.3"]},{"source":"osv","ecosystem":"openSUSE:Leap 15.1","package":"xen","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.12.4_06-lp151.2.36.1"}]}],"bundled":7},{"source":"osv","ecosystem":"openSUSE:Leap 15.2","package":"xen","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.13.2_06-lp152.2.21.1"}]}],"bundled":7},{"source":"osv","ecosystem":"openSUSE:Tumbleweed","package":"xen","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.15.1_01-1.2"}]}],"bundled":93}],"products":[{"vendor":"debian","product":"debian_linux"},{"vendor":"fedoraproject","product":"fedora"},{"vendor":"xen","product":"xen"}],"references":[{"url":"https://xenbits.xenproject.org/xsa/advisory-359.html","tags":["x_refsource_MISC","x_transferred","Patch","Vendor Advisory","fix"]},{"url":"https://www.debian.org/security/2020/dsa-4812","tags":["vendor-advisory","x_refsource_DEBIAN","x_transferred","Third Party Advisory","advisory"]},{"url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/OBLV6L6Q24PPQ2CRFXDX4Q76KU776GKI/","tags":["vendor-advisory","x_refsource_FEDORA","x_transferred","web"]},{"url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/2C6M6S3CIMEBACH6O7V4H2VDANMO6TVA/","tags":["vendor-advisory","x_refsource_FEDORA","x_transferred","web"]},{"url":"https://security.gentoo.org/glsa/202107-30","tags":["vendor-advisory","x_refsource_GENTOO","x_transferred","Third Party Advisory","advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2020-29571"},{"url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/2C6M6S3CIMEBACH6O7V4H2VDANMO6TVA/"},{"url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/OBLV6L6Q24PPQ2CRFXDX4Q76KU776GKI/"},{"url":"https://github.com/advisories/GHSA-26rg-mq58-rxvm"},{"url":"https://security.alpinelinux.org/vuln/CVE-2020-29571","tags":["advisory"]},{"url":"https://security-tracker.debian.org/tracker/CVE-2020-29571","tags":["advisory"]},{"url":"https://www.suse.com/support/update/announcement/2020/suse-su-202014578-1/","tags":["advisory"]},{"url":"https://bugzilla.suse.com/1179477","tags":["report"]},{"url":"https://bugzilla.suse.com/1179496","tags":["report"]},{"url":"https://bugzilla.suse.com/1179498","tags":["report"]},{"url":"https://bugzilla.suse.com/1179501","tags":["report"]},{"url":"https://bugzilla.suse.com/1179502","tags":["report"]},{"url":"https://bugzilla.suse.com/1179506","tags":["report"]},{"url":"https://bugzilla.suse.com/1179514","tags":["report"]},{"url":"https://bugzilla.suse.com/1179516","tags":["report"]},{"url":"https://www.suse.com/security/cve/CVE-2020-29130","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2020-29480","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2020-29481","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2020-29483","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2020-29484","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2020-29566","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2020-29570","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2020-29571","tags":["web"]},{"url":"https://www.suse.com/support/update/announcement/2020/suse-su-20203880-1/","tags":["advisory"]},{"url":"https://bugzilla.suse.com/1027519","tags":["report"]},{"url":"https://bugzilla.suse.com/1163019","tags":["report"]},{"url":"https://bugzilla.suse.com/1176782","tags":["report"]},{"url":"https://www.suse.com/security/cve/CVE-2020-8608","tags":["web"]},{"url":"https://www.suse.com/support/update/announcement/2020/suse-su-20203881-1/","tags":["advisory"]},{"url":"https://www.suse.com/support/update/announcement/2020/suse-su-20203913-1/","tags":["advisory"]},{"url":"https://www.suse.com/support/update/announcement/2020/suse-su-20203914-1/","tags":["advisory"]},{"url":"https://www.suse.com/support/update/announcement/2020/suse-su-20203915-1/","tags":["advisory"]},{"url":"https://www.suse.com/support/update/announcement/2020/suse-su-20203916-1/","tags":["advisory"]},{"url":"https://www.suse.com/support/update/announcement/2020/suse-su-20203945-1/","tags":["advisory"]},{"url":"https://ubuntu.com/security/CVE-2020-29571","tags":["report"]},{"url":"https://xenbits.xen.org/xsa/advisory-359.html","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2020-29571","tags":["report"]},{"url":"https://lists.opensuse.org/archives/list/security-announce@lists.opensuse.org/thread/ORUQM2NUGI7GTGQ4QQYAXYCCBGXOCR55/","tags":["advisory"]},{"url":"https://lists.opensuse.org/archives/list/security-announce@lists.opensuse.org/thread/KLZB3TTBVYNCRCZSSEYYBTXS7RCM6NL7/","tags":["advisory"]},{"url":"","tags":["advisory"]},{"url":"https://www.suse.com/security/cve/CVE-2007-1320","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2007-1366","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2007-3919","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2016-10013","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2016-10024","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2016-10025","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2016-7777","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2016-7908","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2016-7909","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2016-8667","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2016-8669","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2016-8910","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2016-9377","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2016-9379","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2016-9381","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2016-9382","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2016-9383","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2016-9384","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2016-9385","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2016-9386","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2016-9637","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2016-9921","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2016-9932","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2017-12135","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2017-12136","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2017-12137","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2017-2615","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2017-2620","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2017-5753","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2017-6505","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2017-8309","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2017-9330","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2018-10471","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2018-10472","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2018-10981","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2018-10982","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2018-12126","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2018-12891","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2018-12892","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2018-12893","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2018-15468","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2018-15469","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2018-15470","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2018-18883","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2018-19961","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2018-19963","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2018-19964","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2018-19965","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2018-19966","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2018-19967","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2018-3639","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2018-3646","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2018-3665","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2018-5244","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2018-7540","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2018-7541","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2018-7542","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2018-8897","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2019-17349","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2020-0543","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2020-11739","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2020-11740","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2020-11742","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2020-11743","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2020-15563","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2020-15565","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2020-15566","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2020-15567","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2020-25595","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2020-25596","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2020-25597","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2020-25598","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2020-25599","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2020-25600","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2020-25601","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2020-25602","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2020-25603","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2020-25604","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2020-27670","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2020-27671","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2020-27672","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2020-27674","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2020-28368","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2020-29040","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2020-29567","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2021-28687","tags":["web"]}],"sources":{"cve":[{"id":"CVE-2020-29571","description":"An issue was discovered in Xen through 4.14.x. A bounds check common to most operation time functions specific to FIFO event channels depends on the CPU observing consistent state. While the producer side uses appropriately ordered writes, the consumer side isn't protected against re-ordered reads, and may hence end up de-referencing a NULL pointer. Malicious or buggy guest kernels can mount a Denial of Service (DoS) attack affecting the entire system. Only Arm systems may be vulnerable. Whether a system is vulnerable depends on the specific CPU. x86 systems are not vulnerable.","status":"published","published":"2020-12-15T17:02:42Z","modified":"2024-08-04T16:55:10.337Z","updated_at":"2026-11-02T14:35:55.460269Z"}],"euvd":[{"id":"EUVD-2020-21933","description":"An issue was discovered in Xen through 4.14.x. A bounds check common to most operation time functions specific to FIFO event channels depends on the CPU observing consistent state. While the producer side uses appropriately ordered writes, the consumer side isn't protected against re-ordered reads, and may hence end up de-referencing a NULL pointer. Malicious or buggy guest kernels can mount a Denial of Service (DoS) attack affecting the entire system. Only Arm systems may be vulnerable. Whether a system is vulnerable depends on the specific CPU. x86 systems are not vulnerable.","status":"published","published":"2020-12-15T17:02:42Z","modified":"2024-08-04T16:55:10Z","updated_at":"2026-11-03T03:07:07.463834Z"}],"ghsa":[{"id":"GHSA-26rg-mq58-rxvm","title":"An issue was discovered in Xen through 4.14.x. A bounds check common to most operation time...","description":"An issue was discovered in Xen through 4.14.x. A bounds check common to most operation time functions specific to FIFO event channels depends on the CPU observing consistent state. While the producer side uses appropriately ordered writes, the consumer side isn't protected against re-ordered reads, and may hence end up de-referencing a NULL pointer. Malicious or buggy guest kernels can mount a Denial of Service (DoS) attack affecting the entire system. Only Arm systems may be vulnerable. Whether a system is vulnerable depends on the specific CPU. x86 systems are not vulnerable.","status":"published","published":"2022-05-24T17:36:34Z","modified":"2023-01-29T05:04:46Z","cwes":["CWE-476"],"updated_at":"2026-11-02T14:45:37.901426Z"}],"nvd":[{"id":"CVE-2020-29571","description":"An issue was discovered in Xen through 4.14.x. A bounds check common to most operation time functions specific to FIFO event channels depends on the CPU observing consistent state. While the producer side uses appropriately ordered writes, the consumer side isn't protected against re-ordered reads, and may hence end up de-referencing a NULL pointer. Malicious or buggy guest kernels can mount a Denial of Service (DoS) attack affecting the entire system. Only Arm systems may be vulnerable. Whether a system is vulnerable depends on the specific CPU. x86 systems are not vulnerable.","status":"published","published":"2020-12-15T17:15:14.817Z","modified":"2026-06-17T03:11:27.29Z","cvss":[{"version":"3.1","score":6.2,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"medium","assessor":"primary"},{"version":"2.0","score":4.9,"vector":"AV:L/AC:L/Au:N/C:N/I:N/A:C","level":"medium","assessor":"primary"}],"cwes":["CWE-476"],"updated_at":"2026-11-02T14:06:27.73474Z"}],"osv":[{"id":"ALPINE-CVE-2020-29571","description":"An issue was discovered in Xen through 4.14.x. A bounds check common to most operation time functions specific to FIFO event channels depends on the CPU observing consistent state. While the producer side uses appropriately ordered writes, the consumer side isn't protected against re-ordered reads, and may hence end up de-referencing a NULL pointer. Malicious or buggy guest kernels can mount a Denial of Service (DoS) attack affecting the entire system. Only Arm systems may be vulnerable. Whether a system is vulnerable depends on the specific CPU. x86 systems are not vulnerable.","status":"published","published":"2020-12-15T17:15:14.817Z","modified":"2026-10-26T11:17:55.170955216Z","cvss":[{"version":"3.1","score":6.2,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"medium"}],"updated_at":"2026-11-02T15:27:48.11886Z"},{"id":"CVE-2020-29571","description":"An issue was discovered in Xen through 4.14.x. A bounds check common to most operation time functions specific to FIFO event channels depends on the CPU observing consistent state. While the producer side uses appropriately ordered writes, the consumer side isn't protected against re-ordered reads, and may hence end up de-referencing a NULL pointer. Malicious or buggy guest kernels can mount a Denial of Service (DoS) attack affecting the entire system. Only Arm systems may be vulnerable. Whether a system is vulnerable depends on the specific CPU. x86 systems are not vulnerable.","status":"published","published":"2020-12-15T17:15:14.817Z","modified":"2026-03-14T10:07:17.157083Z","cvss":[{"version":"3.1","score":6.2,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"medium"}],"updated_at":"2026-11-02T15:44:16.612899Z"},{"id":"DEBIAN-CVE-2020-29571","description":"An issue was discovered in Xen through 4.14.x. A bounds check common to most operation time functions specific to FIFO event channels depends on the CPU observing consistent state. While the producer side uses appropriately ordered writes, the consumer side isn't protected against re-ordered reads, and may hence end up de-referencing a NULL pointer. Malicious or buggy guest kernels can mount a Denial of Service (DoS) attack affecting the entire system. Only Arm systems may be vulnerable. Whether a system is vulnerable depends on the specific CPU. x86 systems are not vulnerable.","status":"published","published":"2020-12-15T17:15:14.817Z","modified":"2026-10-26T12:02:48.446325833Z","cvss":[{"version":"3.1","score":6.2,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"medium"}],"updated_at":"2026-11-02T15:45:34.019707Z"},{"id":"UBUNTU-CVE-2020-29571","description":"An issue was discovered in Xen through 4.14.x. A bounds check common to most operation time functions specific to FIFO event channels depends on the CPU observing consistent state. While the producer side uses appropriately ordered writes, the consumer side isn't protected against re-ordered reads, and may hence end up de-referencing a NULL pointer. Malicious or buggy guest kernels can mount a Denial of Service (DoS) attack affecting the entire system. Only Arm systems may be vulnerable. Whether a system is vulnerable depends on the specific CPU. x86 systems are not vulnerable.","status":"published","published":"2020-12-15T17:15:00Z","modified":"2026-04-22T12:40:08.319221Z","cvss":[{"version":"3.1","score":6.2,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"medium"}],"updated_at":"2026-11-02T15:54:24.541803Z"},{"id":"DSA-4812-1","title":"xen - security update","status":"published","published":"2020-12-15T00:00:00Z","modified":"2026-03-09T02:11:08.819507Z","updated_at":"2026-11-02T15:46:17.19998Z"},{"id":"openSUSE-SU-2020:2313-1","title":"Security update for xen","description":"This update for xen fixes the following issues:\n\n- CVE-2020-29480: Fixed an issue which could have allowed leak of non-sensitive data to administrator guests (bsc#117949 XSA-115).\n- CVE-2020-29481: Fixed an issue which could have allowd to new domains to inherit existing node permissions (bsc#1179498 XSA-322). \n- CVE-2020-29483: Fixed an issue where guests could disturb domain cleanup (bsc#1179502 XSA-325).\n- CVE-2020-29484: Fixed an issue where guests could crash xenstored via watchs (bsc#1179501 XSA-324). \n- CVE-2020-29566: Fixed an undue recursion in x86 HVM context switch code (bsc#1179506 XSA-348).\n- CVE-2020-29570: Fixed an issue where FIFO event channels control block related ordering (bsc#1179514 XSA-358).\n- CVE-2020-29571: Fixed an issue where FIFO event channels control structure ordering (bsc#1179516 XSA-359).\n- Fixed an issue where dump-core shows missing nr_pages during core (bsc#1176782).\n- Multiple other bugs (bsc#1027519)\n\nThis update was imported from the SUSE:SLE-15-SP1:Update update project.","status":"published","published":"2020-12-22T05:22:46Z","modified":"2025-05-07T18:12:04.496935Z","updated_at":"2026-11-02T16:58:31.517538Z"},{"id":"openSUSE-SU-2020:2331-1","title":"Security update for xen","description":"This update for xen fixes the following issues:\n\n- CVE-2020-29480: Fixed an issue which could have allowed leak of non-sensitive data to administrator guests (bsc#117949 XSA-115).\n- CVE-2020-29481: Fixed an issue which could have allowd to new domains to inherit existing node permissions (bsc#1179498 XSA-322). \n- CVE-2020-29483: Fixed an issue where guests could disturb domain cleanup (bsc#1179502 XSA-325).\n- CVE-2020-29484: Fixed an issue where guests could crash xenstored via watchs (bsc#1179501 XSA-324). \n- CVE-2020-29566: Fixed an undue recursion in x86 HVM context switch code (bsc#1179506 XSA-348).\n- CVE-2020-29570: Fixed an issue where FIFO event channels control block related ordering (bsc#1179514 XSA-358).\n- CVE-2020-29571: Fixed an issue where FIFO event channels control structure ordering (bsc#1179516 XSA-359).\n- Fixed an issue where dump-core shows missing nr_pages during core (bsc#1176782).\n- Multiple other bugs (bsc#1027519)\n\nThis update was imported from the SUSE:SLE-15-SP2:Update update project.","status":"published","published":"2020-12-26T05:22:25Z","modified":"2026-02-04T03:38:08.826583Z","updated_at":"2026-11-02T16:58:31.879684Z"},{"id":"openSUSE-SU-2024:11520-1","title":"xen-4.15.1_01-1.2 on GA media","description":"These are all security issues fixed in the xen-4.15.1_01-1.2 package on the GA media of openSUSE Tumbleweed.","status":"published","published":"2024-06-15T00:00:00Z","modified":"2025-05-07T18:08:22.378535Z","updated_at":"2026-11-02T16:58:35.195147Z"},{"id":"SUSE-SU-2020:14578-1","title":"Security update for xen","description":"This update for xen fixes the following issues:\n\n- CVE-2020-29480: Fixed an issue which could have allowed leak of non-sensitive data to administrator guests (bsc#117949 XSA-115).\n- CVE-2020-29481: Fixed an issue which could have allowd to new domains to inherit existing node permissions (bsc#1179498 XSA-322). \n- CVE-2020-29483: Fixed an issue where guests could disturb domain cleanup (bsc#1179502 XSA-325).\n- CVE-2020-29484: Fixed an issue where guests could crash xenstored via watchs (bsc#1179501 XSA-324). \n- CVE-2020-29566: Fixed an undue recursion in x86 HVM context switch code (bsc#1179506 XSA-348).\n- CVE-2020-29570: Fixed an issue where FIFO event channels control block related ordering (bsc#1179514 XSA-358).\n- CVE-2020-29571: Fixed an issue where FIFO event channels control structure ordering (bsc#1179516 XSA-359).\n- CVE-2020-29130: Fixed an out-of-bounds access while processing ARP packets (bsc#1179477). \n","status":"published","published":"2020-12-16T16:52:35Z","modified":"2026-02-04T03:40:59.864471Z","updated_at":"2026-11-02T15:53:47.634847Z"},{"id":"SUSE-SU-2020:3880-1","title":"Security update for xen","description":"This update for xen fixes the following issues:\n\n- CVE-2020-29480: Fixed an issue which could have allowed leak of non-sensitive data to administrator guests (bsc#117949 XSA-115).\n- CVE-2020-29481: Fixed an issue which could have allowd to new domains to inherit existing node permissions (bsc#1179498 XSA-322). \n- CVE-2020-29483: Fixed an issue where guests could disturb domain cleanup (bsc#1179502 XSA-325).\n- CVE-2020-29484: Fixed an issue where guests could crash xenstored via watchs (bsc#1179501 XSA-324). \n- CVE-2020-29566: Fixed an undue recursion in x86 HVM context switch code (bsc#1179506 XSA-348).\n- CVE-2020-29570: Fixed an issue where FIFO event channels control block related ordering (bsc#1179514 XSA-358).\n- CVE-2020-29571: Fixed an issue where FIFO event channels control structure ordering (bsc#1179516 XSA-359).\n- CVE-2020-29130: Fixed an out-of-bounds access while processing ARP packets (bsc#1179477). \n- Fixed an issue where dump-core shows missing nr_pages during core (bsc#1176782).\n- Multiple other bugs (bsc#1027519)\n","status":"published","published":"2020-12-18T15:47:02Z","modified":"2026-02-04T04:36:31.987762Z","updated_at":"2026-11-02T15:53:48.690034Z"},{"id":"SUSE-SU-2020:3881-1","title":"Security update for xen","description":"This update for xen fixes the following issues:\n\n- CVE-2020-29480: Fixed an issue which could have allowed leak of non-sensitive data to administrator guests (bsc#117949 XSA-115).\n- CVE-2020-29481: Fixed an issue which could have allowd to new domains to inherit existing node permissions (bsc#1179498 XSA-322). \n- CVE-2020-29483: Fixed an issue where guests could disturb domain cleanup (bsc#1179502 XSA-325).\n- CVE-2020-29484: Fixed an issue where guests could crash xenstored via watchs (bsc#1179501 XSA-324). \n- CVE-2020-29566: Fixed an undue recursion in x86 HVM context switch code (bsc#1179506 XSA-348).\n- CVE-2020-29570: Fixed an issue where FIFO event channels control block related ordering (bsc#1179514 XSA-358).\n- CVE-2020-29571: Fixed an issue where FIFO event channels control structure ordering (bsc#1179516 XSA-359).\n- Fixed an issue where dump-core shows missing nr_pages during core (bsc#1176782).\n- Multiple other bugs (bsc#1027519)\n","status":"published","published":"2020-12-18T15:47:14Z","modified":"2026-02-04T03:39:37.252654Z","updated_at":"2026-11-02T15:53:48.690034Z"},{"id":"SUSE-SU-2020:3913-1","title":"Security update for xen","description":"This update for xen fixes the following issues:\n\n- CVE-2020-29480: Fixed an issue which could have allowed leak of non-sensitive data to administrator guests (bsc#117949 XSA-115).\n- CVE-2020-29481: Fixed an issue which could have allowd to new domains to inherit existing node permissions (bsc#1179498 XSA-322). \n- CVE-2020-29483: Fixed an issue where guests could disturb domain cleanup (bsc#1179502 XSA-325).\n- CVE-2020-29484: Fixed an issue where guests could crash xenstored via watchs (bsc#1179501 XSA-324). \n- CVE-2020-29566: Fixed an undue recursion in x86 HVM context switch code (bsc#1179506 XSA-348).\n- CVE-2020-29570: Fixed an issue where FIFO event channels control block related ordering (bsc#1179514 XSA-358).\n- CVE-2020-29571: Fixed an issue where FIFO event channels control structure ordering (bsc#1179516 XSA-359).\n- CVE-2020-29130: Fixed an out-of-bounds access while processing ARP packets (bsc#1179477). \n- Fixed an issue where dump-core shows missing nr_pages during core (bsc#1176782).\n- Multiple other bugs (bsc#1027519)\n","status":"published","published":"2020-12-22T13:16:01Z","modified":"2026-02-04T03:59:34.976076Z","updated_at":"2026-11-02T15:53:48.690034Z"},{"id":"SUSE-SU-2020:3914-1","title":"Security update for xen","description":"This update for xen fixes the following issues:\n\n- CVE-2020-29480: Fixed an issue which could have allowed leak of non-sensitive data to administrator guests (bsc#117949 XSA-115).\n- CVE-2020-29481: Fixed an issue which could have allowd to new domains to inherit existing node permissions (bsc#1179498 XSA-322). \n- CVE-2020-29483: Fixed an issue where guests could disturb domain cleanup (bsc#1179502 XSA-325).\n- CVE-2020-29484: Fixed an issue where guests could crash xenstored via watchs (bsc#1179501 XSA-324). \n- CVE-2020-29566: Fixed an undue recursion in x86 HVM context switch code (bsc#1179506 XSA-348).\n- CVE-2020-29570: Fixed an issue where FIFO event channels control block related ordering (bsc#1179514 XSA-358).\n- CVE-2020-29571: Fixed an issue where FIFO event channels control structure ordering (bsc#1179516 XSA-359).\n- CVE-2020-29130: Fixed an out-of-bounds access while processing ARP packets (bsc#1179477). \n- Fixed an issue where dump-core shows missing nr_pages during core (bsc#1176782).\n- Multiple other bugs (bsc#1027519)\n","status":"published","published":"2020-12-22T13:16:20Z","modified":"2026-02-04T02:25:51.054779Z","updated_at":"2026-11-02T15:53:48.690034Z"},{"id":"SUSE-SU-2020:3915-1","title":"Security update for xen","description":"This update for xen fixes the following issues:\n\n- CVE-2020-29480: Fixed an issue which could have allowed leak of non-sensitive data to administrator guests (bsc#117949 XSA-115).\n- CVE-2020-29481: Fixed an issue which could have allowd to new domains to inherit existing node permissions (bsc#1179498 XSA-322). \n- CVE-2020-29483: Fixed an issue where guests could disturb domain cleanup (bsc#1179502 XSA-325).\n- CVE-2020-29484: Fixed an issue where guests could crash xenstored via watchs (bsc#1179501 XSA-324). \n- CVE-2020-29566: Fixed an undue recursion in x86 HVM context switch code (bsc#1179506 XSA-348).\n- CVE-2020-29570: Fixed an issue where FIFO event channels control block related ordering (bsc#1179514 XSA-358).\n- CVE-2020-29571: Fixed an issue where FIFO event channels control structure ordering (bsc#1179516 XSA-359).\n- Fixed an issue where dump-core shows missing nr_pages during core (bsc#1176782).\n- Multiple other bugs (bsc#1027519)\n","status":"published","published":"2020-12-22T13:16:30Z","modified":"2026-02-04T02:49:46.962806Z","updated_at":"2026-11-02T15:53:48.690034Z"},{"id":"SUSE-SU-2020:3916-1","title":"Security update for xen","description":"This update for xen fixes the following issues:\n\n- CVE-2020-29480: Fixed an issue which could have allowed leak of non-sensitive data to administrator guests (bsc#117949 XSA-115).\n- CVE-2020-29481: Fixed an issue which could have allowd to new domains to inherit existing node permissions (bsc#1179498 XSA-322). \n- CVE-2020-29483: Fixed an issue where guests could disturb domain cleanup (bsc#1179502 XSA-325).\n- CVE-2020-29484: Fixed an issue where guests could crash xenstored via watchs (bsc#1179501 XSA-324). \n- CVE-2020-29566: Fixed an undue recursion in x86 HVM context switch code (bsc#1179506 XSA-348).\n- CVE-2020-29570: Fixed an issue where FIFO event channels control block related ordering (bsc#1179514 XSA-358).\n- CVE-2020-29571: Fixed an issue where FIFO event channels control structure ordering (bsc#1179516 XSA-359).\n- Fixed an issue where dump-core shows missing nr_pages during core (bsc#1176782).\n- Multiple other bugs (bsc#1027519)\n","status":"published","published":"2020-12-22T13:16:42Z","modified":"2026-02-04T03:24:53.042108Z","updated_at":"2026-11-02T15:53:48.690034Z"},{"id":"SUSE-SU-2020:3945-1","title":"Security update for xen","description":"This update for xen fixes the following issues:\n\n- CVE-2020-29480: Fixed an issue which could have allowed leak of non-sensitive data to administrator guests (bsc#117949 XSA-115).\n- CVE-2020-29481: Fixed an issue which could have allowd to new domains to inherit existing node permissions (bsc#1179498 XSA-322). \n- CVE-2020-29483: Fixed an issue where guests could disturb domain cleanup (bsc#1179502 XSA-325).\n- CVE-2020-29484: Fixed an issue where guests could crash xenstored via watchs (bsc#1179501 XSA-324). \n- CVE-2020-29566: Fixed an undue recursion in x86 HVM context switch code (bsc#1179506 XSA-348).\n- CVE-2020-29570: Fixed an issue where FIFO event channels control block related ordering (bsc#1179514 XSA-358).\n- CVE-2020-29571: Fixed an issue where FIFO event channels control structure ordering (bsc#1179516 XSA-359).\n- CVE-2020-29130: Fixed an out-of-bounds access while processing ARP packets (bsc#1179477). \n- Fixed an issue where dump-core shows missing nr_pages during core (bsc#1176782).\n- Multiple other bugs (bsc#1027519)\n","status":"published","published":"2020-12-29T12:09:29Z","modified":"2026-02-04T02:51:22.921364Z","updated_at":"2026-11-02T15:53:48.690034Z"}]}}