{"id":"CVE-2019-17346","aliases":["ALPINE-CVE-2019-17346","DEBIAN-CVE-2019-17346","EUVD-2019-7757","GHSA-j897-36j5-vg2q","SUSE-RU-2019:2767-1","SUSE-SU-2019:14199-1","SUSE-SU-2019:2753-1","SUSE-SU-2019:2769-1","SUSE-SU-2019:2783-1"],"status":"published","title":"An issue was discovered in Xen through 4.11.x allowing x86 PV guest OS users to cause a denial of...","description":"An issue was discovered in Xen through 4.11.x allowing x86 PV guest OS users to cause a denial of service or gain privileges because of an incompatibility between Process Context Identifiers (PCID) and TLB flushes.","severity":{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-09","score":0.00349,"percentile":0.28705,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-20"],"published":"2019-10-08T00:02:15Z","modified":"2026-09-21T07:03:06Z","fixes":[{"ecosystem":"Alpine:v3.9","package":"xen","fixed_in":["4.11.2-r0"],"sources":["osv"]},{"ecosystem":"Debian:12","package":"xen","fixed_in":["4.11.1+92-g6c33308a8d-1"],"sources":["osv"]},{"ecosystem":"Debian:13","package":"xen","fixed_in":["4.11.1+92-g6c33308a8d-1"],"sources":["osv"]},{"ecosystem":"Debian:14","package":"xen","fixed_in":["4.11.1+92-g6c33308a8d-1"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Alpine:v3.9","package":"xen","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.11.2-r0"}]}]},{"source":"osv","ecosystem":"Debian:12","package":"xen","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.11.1+92-g6c33308a8d-1"}]}]},{"source":"osv","ecosystem":"Debian:13","package":"xen","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.11.1+92-g6c33308a8d-1"}]}]},{"source":"osv","ecosystem":"Debian:14","package":"xen","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.11.1+92-g6c33308a8d-1"}]}]},{"source":"osv","ecosystem":"SUSE:Linux Enterprise Module for Basesystem 15","package":"xen","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.10.4_04-3.22.1"}]}],"bundled":14},{"source":"osv","ecosystem":"SUSE:Linux Enterprise Module for Server Applications 15","package":"xen","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.10.4_04-3.22.1"}]}],"bundled":14},{"source":"osv","ecosystem":"SUSE:Linux Enterprise Server 11 SP4-LTSS","package":"xen","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.4.4_40-61.49.1"}]}],"bundled":13},{"source":"osv","ecosystem":"SUSE:Linux Enterprise Desktop 12 SP4","package":"xen","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.11.2_02-2.14.2"}]}],"bundled":16},{"source":"osv","ecosystem":"SUSE:Linux Enterprise Software Development Kit 12 SP4","package":"xen","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.11.2_02-2.14.2"}]}],"bundled":16},{"source":"osv","ecosystem":"SUSE:Linux Enterprise Server 12 SP4","package":"xen","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.11.2_02-2.14.2"}]}],"bundled":16},{"source":"osv","ecosystem":"SUSE:Linux Enterprise Server for SAP Applications 12 SP4","package":"xen","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.11.2_02-2.14.2"}]}],"bundled":16},{"source":"osv","ecosystem":"SUSE:HPE Helion OpenStack 8","package":"xen","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.9.4_04-3.56.2"}]}],"bundled":16},{"source":"osv","ecosystem":"SUSE:OpenStack Cloud 8","package":"xen","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.9.4_04-3.56.2"}]}],"bundled":16},{"source":"osv","ecosystem":"SUSE:OpenStack Cloud Crowbar 8","package":"xen","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.9.4_04-3.56.2"}]}],"bundled":16},{"source":"osv","ecosystem":"SUSE:Linux Enterprise Server for SAP Applications 12 SP3","package":"xen","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.9.4_04-3.56.2"}]}],"bundled":16},{"source":"osv","ecosystem":"SUSE:Linux Enterprise Server 12 SP3-LTSS","package":"xen","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.9.4_04-3.56.2"}]}],"bundled":16},{"source":"osv","ecosystem":"SUSE:Linux Enterprise Server 12 SP3-BCL","package":"xen","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.9.4_04-3.56.2"}]}],"bundled":16},{"source":"osv","ecosystem":"SUSE:Enterprise Storage 5","package":"xen","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.9.4_04-3.56.2"}]}],"bundled":16},{"source":"osv","ecosystem":"SUSE:OpenStack Cloud 7","package":"xen","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.7.6_06-43.54.2"}]}],"bundled":11},{"source":"osv","ecosystem":"SUSE:Linux Enterprise Server for SAP Applications 12 SP2","package":"xen","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.7.6_06-43.54.2"}]}],"bundled":11},{"source":"osv","ecosystem":"SUSE:Linux Enterprise Server 12 SP2-LTSS","package":"xen","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.7.6_06-43.54.2"}]}],"bundled":11},{"source":"osv","ecosystem":"SUSE:Linux Enterprise Server 12 SP2-BCL","package":"xen","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.7.6_06-43.54.2"}]}],"bundled":11},{"source":"osv","ecosystem":"SUSE:Enterprise Storage 4","package":"xen","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.7.6_06-43.54.2"}]}],"bundled":11}],"products":[{"vendor":"debian","product":"debian_linux"},{"vendor":"xen","product":"xen"}],"references":[{"url":"http://xenbits.xen.org/xsa/advisory-292.html","tags":["x_refsource_CONFIRM","x_transferred","Patch","Vendor Advisory","fix"]},{"url":"https://xenbits.xen.org/xsa/advisory-292.html","tags":["x_refsource_MISC","x_transferred","Vendor Advisory","advisory"]},{"url":"http://www.openwall.com/lists/oss-security/2019/10/25/5","tags":["mailing-list","x_refsource_MLIST","x_transferred","Mailing List","article"]},{"url":"https://www.debian.org/security/2020/dsa-4602","tags":["vendor-advisory","x_refsource_DEBIAN","x_transferred","Third Party Advisory","advisory"]},{"url":"https://seclists.org/bugtraq/2020/Jan/21","tags":["mailing-list","x_refsource_BUGTRAQ","x_transferred","Mailing List","Third Party Advisory","advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2019-17346"},{"url":"https://github.com/advisories/GHSA-j897-36j5-vg2q"},{"url":"https://security.alpinelinux.org/vuln/CVE-2019-17346","tags":["advisory"]},{"url":"https://security-tracker.debian.org/tracker/CVE-2019-17346","tags":["advisory"]},{"url":"https://www.suse.com/support/update/announcement/-2019-2767/suse-ru-20192767-1/","tags":["advisory"]},{"url":"https://bugzilla.suse.com/1027519","tags":["report"]},{"url":"https://bugzilla.suse.com/1126140","tags":["report"]},{"url":"https://bugzilla.suse.com/1126141","tags":["report"]},{"url":"https://bugzilla.suse.com/1126192","tags":["report"]},{"url":"https://bugzilla.suse.com/1126195","tags":["report"]},{"url":"https://bugzilla.suse.com/1126196","tags":["report"]},{"url":"https://bugzilla.suse.com/1126197","tags":["report"]},{"url":"https://bugzilla.suse.com/1126198","tags":["report"]},{"url":"https://bugzilla.suse.com/1126201","tags":["report"]},{"url":"https://bugzilla.suse.com/1127400","tags":["report"]},{"url":"https://bugzilla.suse.com/1129642","tags":["report"]},{"url":"https://bugzilla.suse.com/1131811","tags":["report"]},{"url":"https://bugzilla.suse.com/1133818","tags":["report"]},{"url":"https://bugzilla.suse.com/1137717","tags":["report"]},{"url":"https://bugzilla.suse.com/1138294","tags":["report"]},{"url":"https://bugzilla.suse.com/1138563","tags":["report"]},{"url":"https://bugzilla.suse.com/1145240","tags":["report"]},{"url":"https://bugzilla.suse.com/1145774","tags":["report"]},{"url":"https://www.suse.com/security/cve/CVE-2018-12126","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2018-12127","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2018-12130","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2019-11091","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2019-17340","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2019-17341","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2019-17342","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2019-17343","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2019-17344","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2019-17345","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2019-17346","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2019-17347","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2019-17348","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2019-17349","tags":["web"]},{"url":"https://www.suse.com/support/update/announcement/2019/suse-su-201914199-1/","tags":["advisory"]},{"url":"https://bugzilla.suse.com/1135905","tags":["report"]},{"url":"https://bugzilla.suse.com/1143797","tags":["report"]},{"url":"https://bugzilla.suse.com/1145652","tags":["report"]},{"url":"https://bugzilla.suse.com/1146874","tags":["report"]},{"url":"https://bugzilla.suse.com/1149813","tags":["report"]},{"url":"https://www.suse.com/security/cve/CVE-2019-12067","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2019-12068","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2019-12155","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2019-14378","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2019-15890","tags":["web"]},{"url":"https://www.suse.com/support/update/announcement/2019/suse-su-20192753-1/","tags":["advisory"]},{"url":"https://bugzilla.suse.com/1111331","tags":["report"]},{"url":"https://www.suse.com/support/update/announcement/2019/suse-su-20192769-1/","tags":["advisory"]},{"url":"https://www.suse.com/support/update/announcement/2019/suse-su-20192783-1/","tags":["advisory"]}],"sources":{"cve":[{"id":"CVE-2019-17346","description":"An issue was discovered in Xen through 4.11.x allowing x86 PV guest OS users to cause a denial of service or gain privileges because of an incompatibility between Process Context Identifiers (PCID) and TLB flushes.","status":"published","published":"2019-10-08T00:02:15Z","modified":"2024-08-05T01:40:15.483Z","updated_at":"2026-11-02T14:20:24.678649Z"}],"euvd":[{"id":"EUVD-2019-7757","description":"An issue was discovered in Xen through 4.11.x allowing x86 PV guest OS users to cause a denial of service or gain privileges because of an incompatibility between Process Context Identifiers (PCID) and TLB flushes.","status":"published","published":"2019-10-08T00:02:15Z","modified":"2024-08-05T01:40:15Z","updated_at":"2026-11-03T02:40:30.328063Z"}],"ghsa":[{"id":"GHSA-j897-36j5-vg2q","title":"An issue was discovered in Xen through 4.11.x allowing x86 PV guest OS users to cause a denial of...","description":"An issue was discovered in Xen through 4.11.x allowing x86 PV guest OS users to cause a denial of service or gain privileges because of an incompatibility between Process Context Identifiers (PCID) and TLB flushes.","status":"published","published":"2022-05-24T16:58:09Z","modified":"2023-02-11T05:05:57Z","cvss":[{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H","level":"high"}],"cwes":["CWE-20"],"updated_at":"2026-11-02T14:54:04.413406Z"}],"nvd":[{"id":"CVE-2019-17346","description":"An issue was discovered in Xen through 4.11.x allowing x86 PV guest OS users to cause a denial of service or gain privileges because of an incompatibility between Process Context Identifiers (PCID) and TLB flushes.","status":"published","published":"2019-10-08T01:15:10.83Z","modified":"2026-06-17T02:23:46.327Z","cvss":[{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H","level":"high","assessor":"primary"},{"version":"2.0","score":7.2,"vector":"AV:L/AC:L/Au:N/C:C/I:C/A:C","level":"high","assessor":"primary"}],"cwes":["CWE-20"],"updated_at":"2026-11-02T14:05:31.019577Z"}],"osv":[{"id":"ALPINE-CVE-2019-17346","description":"An issue was discovered in Xen through 4.11.x allowing x86 PV guest OS users to cause a denial of service or gain privileges because of an incompatibility between Process Context Identifiers (PCID) and TLB flushes.","status":"published","published":"2019-10-08T01:15:10.83Z","modified":"2026-09-21T06:17:52.49809518Z","cvss":[{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-02T15:27:47.663013Z"},{"id":"CVE-2019-17346","description":"An issue was discovered in Xen through 4.11.x allowing x86 PV guest OS users to cause a denial of service or gain privileges because of an incompatibility between Process Context Identifiers (PCID) and TLB flushes.","status":"published","published":"2019-10-08T01:15:10.83Z","modified":"2026-03-14T09:32:11.950432Z","cvss":[{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-02T15:44:11.673963Z"},{"id":"DEBIAN-CVE-2019-17346","description":"An issue was discovered in Xen through 4.11.x allowing x86 PV guest OS users to cause a denial of service or gain privileges because of an incompatibility between Process Context Identifiers (PCID) and TLB flushes.","status":"published","published":"2019-10-08T01:15:10.83Z","modified":"2026-09-21T07:03:06.645824803Z","cvss":[{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-02T15:45:31.867036Z"},{"id":"SUSE-RU-2019:2767-1","title":"Recommended update for xen","description":"This update for xen to version 4.10.4 fixes the following issues:\n\n- Fixed an issue where libxenlight could not restore domain vsa6535522 on live migration\n  (bsc#1133818).\n- Fixed an HPS bug which did not allow to install Windows Server 2016 with 2 CPUs setting or above\n  (bsc#1137717).\n- Fixed an issue where libxenlight could not create new domain (bsc#1131811).\n- Fixed an issue where Xen could not pre-allocate 1 shadow page (bsc#1145240).\n- Fixed an issue where attached pci devices were lost after reboot (bsc#1129642).\n- Fixed a segmentation fault in Libvrtd during live migration to a VM (bsc#1145774). \n- Xenpvnetboot is now ported correctly to Python 3 (bsc#1138563).\n","status":"published","published":"2019-10-24T10:23:00Z","modified":"2026-02-04T03:17:31.235569Z","updated_at":"2026-11-02T15:53:41.276824Z"},{"id":"SUSE-SU-2019:14199-1","title":"Security update for xen","description":"This update for xen fixes the following issues:\n\n- CVE-2019-15890: Fixed a use-after-free in SLiRP networking implementation of QEMU emulator\n  which could have led to Denial of Service (bsc#1149813).\n- CVE-2019-12068: Fixed an issue in lsi which could lead to an infinite loop and denial of \n  service (bsc#1146874).\n- CVE-2019-14378: Fixed a heap buffer overflow in SLiRp networking implementation of QEMU \n  emulator which could have led to execution of  arbitrary code with privileges of the \n  QEMU process (bsc#1143797).\n- CVE-2019-12067: Fixed a null pointer dereference which could have led to denial of service (bsc#1145652).\n- CVE-2019-12155: Fixed a null pointer dereference in QXL VGA card emulator of QEMU which\n  could have led to denial of service (bsc#1135905).\n  ","status":"published","published":"2019-10-24T11:23:17Z","modified":"2026-02-04T03:45:58.326397Z","updated_at":"2026-11-02T15:53:46.44301Z"},{"id":"SUSE-SU-2019:2753-1","title":"Security update for xen","description":"This update for xen to version 4.11.2 fixes the following issues:\n\nSecurity issues fixed: \t  \n\n- CVE-2019-15890: Fixed a use-after-free in SLiRP networking implementation of QEMU emulator\n  which could have led to Denial of Service (bsc#1149813).\n- CVE-2019-12068: Fixed an issue in lsi which could lead to an infinite loop and denial of \n  service (bsc#1146874).\n- CVE-2019-14378: Fixed a heap buffer overflow in SLiRp networking implementation of QEMU \n  emulator which could have led to execution of  arbitrary code with privileges of the \n  QEMU process (bsc#1143797).\n\nOther issues fixed: \n\n- Fixed an HPS bug which did not allow to install Windows Server 2016 with 2 CPUs setting or above\n  (bsc#1137717).\n- Fixed a segmentation fault in Libvrtd during live migration to a VM (bsc#1145774). \n- Fixed an issue where libxenlight could not create new domain (bsc#1131811).\n- Fixed an issue where attached pci devices were lost after reboot (bsc#1129642).\n- Fixed an issue where Xen could not pre-allocate 1 shadow page (bsc#1145240).\n","status":"published","published":"2019-10-23T11:45:48Z","modified":"2026-02-04T03:34:49.387031Z","updated_at":"2026-11-02T15:53:47.06185Z"},{"id":"SUSE-SU-2019:2769-1","title":"Security update for xen","description":"This update for xen fixes the following issues:\n\nSecurity issues fixed: \t  \n\n- CVE-2019-15890: Fixed a use-after-free in SLiRP networking implementation of QEMU emulator\n  which could have led to Denial of Service (bsc#1149813).\n- CVE-2019-12068: Fixed an issue in lsi which could lead to an infinite loop and denial of \n  service (bsc#1146874).\n- CVE-2019-14378: Fixed a heap buffer overflow in SLiRp networking implementation of QEMU \n  emulator which could have led to execution of  arbitrary code with privileges of the \n  QEMU process (bsc#1143797).\n\nOther issue fixed: \n\n- Fixed an issue where libxenlight could not restore domain vsa6535522 on live migration (bsc#1133818).\n ","status":"published","published":"2019-10-24T11:23:02Z","modified":"2026-02-04T02:32:59.16303Z","updated_at":"2026-11-02T15:53:47.06185Z"},{"id":"SUSE-SU-2019:2783-1","title":"Security update for xen","description":"This update for xen fixes the following issues:\n\t  \n- CVE-2019-15890: Fixed a use-after-free in SLiRP networking implementation of QEMU emulator\n  which could have led to Denial of Service (bsc#1149813).\n- CVE-2019-12068: Fixed an issue in lsi which could lead to an infinite loop and denial of \n  service (bsc#1146874).\n- CVE-2019-14378: Fixed a heap buffer overflow in SLiRp networking implementation of QEMU \n  emulator which could have led to execution of  arbitrary code with privileges of the \n  QEMU process (bsc#1143797).\n ","status":"published","published":"2019-10-25T12:28:11Z","modified":"2026-02-04T03:12:37.744857Z","updated_at":"2026-11-02T15:53:47.06185Z"}]}}