{"id":"CVE-2020-11869","aliases":["BELL-CVE-2020-11869","DEBIAN-CVE-2020-11869","EUVD-2020-4209","GHSA-v28g-xr7w-fvp4","UBUNTU-CVE-2020-11869","USN-4372-1","openSUSE-SU-2024:11287-1"],"status":"published","title":"An integer overflow was found in QEMU 4.0.1 through 4.2.0 in the way it implemented ATI VGA...","description":"An integer overflow was found in QEMU 4.0.1 through 4.2.0 in the way it implemented ATI VGA emulation. This flaw occurs in the ati_2d_blt() routine in hw/display/ati-2d.c while handling MMIO write operations through the ati_mm_write() callback. A malicious guest could abuse this flaw to crash the QEMU process, resulting in a denial of service.","severity":{"version":"3.1","score":3.3,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L","level":"low","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-10","score":0.00395,"percentile":0.34055,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-190"],"published":"2020-04-27T19:00:34Z","modified":"2026-10-26T12:01:23Z","fixes":[{"ecosystem":"Debian:12","package":"qemu","fixed_in":["1:5.0-1"],"sources":["osv"]},{"ecosystem":"Debian:13","package":"qemu","fixed_in":["1:5.0-1"],"sources":["osv"]},{"ecosystem":"Debian:14","package":"qemu","fixed_in":["1:5.0-1"],"sources":["osv"]},{"ecosystem":"Ubuntu:20.04:LTS","package":"qemu","fixed_in":["1:4.2-3ubuntu6.1"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Debian:12","package":"qemu","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1:5.0-1"}]}]},{"source":"osv","ecosystem":"Debian:13","package":"qemu","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1:5.0-1"}]}]},{"source":"osv","ecosystem":"Debian:14","package":"qemu","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1:5.0-1"}]}]},{"source":"osv","ecosystem":"Ubuntu:20.04:LTS","package":"qemu","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1:4.2-3ubuntu6.1"}]}],"versions":["1:4.0+dfsg-0ubuntu9","1:4.0+dfsg-0ubuntu10","1:4.2-1ubuntu1","1:4.2-1ubuntu2","1:4.2-3ubuntu1","1:4.2-3ubuntu2","1:4.2-3ubuntu3","1:4.2-3ubuntu4","1:4.2-3ubuntu5","1:4.2-3ubuntu6"]},{"source":"osv","ecosystem":"Ubuntu:16.04:LTS","package":"qemu","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1:2.5+dfsg-5ubuntu10.44"}]}],"versions":["1:2.3+dfsg-5ubuntu9","1:2.3+dfsg-5ubuntu10","1:2.4+dfsg-4ubuntu1","1:2.4+dfsg-4ubuntu2","1:2.4+dfsg-4ubuntu3","1:2.4+dfsg-5ubuntu3","1:2.5+dfsg-1ubuntu2","1:2.5+dfsg-1ubuntu3","1:2.5+dfsg-1ubuntu4","1:2.5+dfsg-1ubuntu5","1:2.5+dfsg-5ubuntu1","1:2.5+dfsg-5ubuntu2","1:2.5+dfsg-5ubuntu4","1:2.5+dfsg-5ubuntu6","1:2.5+dfsg-5ubuntu7","1:2.5+dfsg-5ubuntu10","1:2.5+dfsg-5ubuntu10.1","1:2.5+dfsg-5ubuntu10.2","1:2.5+dfsg-5ubuntu10.3","1:2.5+dfsg-5ubuntu10.4","1:2.5+dfsg-5ubuntu10.5","1:2.5+dfsg-5ubuntu10.6","1:2.5+dfsg-5ubuntu10.7","1:2.5+dfsg-5ubuntu10.8","1:2.5+dfsg-5ubuntu10.9","1:2.5+dfsg-5ubuntu10.10","1:2.5+dfsg-5ubuntu10.11","1:2.5+dfsg-5ubuntu10.13","1:2.5+dfsg-5ubuntu10.14","1:2.5+dfsg-5ubuntu10.15","1:2.5+dfsg-5ubuntu10.16","1:2.5+dfsg-5ubuntu10.20","1:2.5+dfsg-5ubuntu10.21","1:2.5+dfsg-5ubuntu10.22","1:2.5+dfsg-5ubuntu10.24","1:2.5+dfsg-5ubuntu10.25","1:2.5+dfsg-5ubuntu10.26","1:2.5+dfsg-5ubuntu10.28","1:2.5+dfsg-5ubuntu10.29","1:2.5+dfsg-5ubuntu10.30","1:2.5+dfsg-5ubuntu10.31","1:2.5+dfsg-5ubuntu10.32","1:2.5+dfsg-5ubuntu10.33","1:2.5+dfsg-5ubuntu10.34","1:2.5+dfsg-5ubuntu10.35","1:2.5+dfsg-5ubuntu10.36","1:2.5+dfsg-5ubuntu10.37","1:2.5+dfsg-5ubuntu10.38","1:2.5+dfsg-5ubuntu10.39","1:2.5+dfsg-5ubuntu10.40","1:2.5+dfsg-5ubuntu10.41","1:2.5+dfsg-5ubuntu10.42","1:2.5+dfsg-5ubuntu10.43"],"bundled":5},{"source":"osv","ecosystem":"Ubuntu:18.04:LTS","package":"qemu","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1:2.11+dfsg-1ubuntu7.26"}]}],"versions":["1:2.10+dfsg-0ubuntu3","1:2.10+dfsg-0ubuntu4","1:2.10+dfsg-0ubuntu5","1:2.11+dfsg-1ubuntu1","1:2.11+dfsg-1ubuntu2","1:2.11+dfsg-1ubuntu4","1:2.11+dfsg-1ubuntu5","1:2.11+dfsg-1ubuntu6","1:2.11+dfsg-1ubuntu7","1:2.11+dfsg-1ubuntu7.1","1:2.11+dfsg-1ubuntu7.2","1:2.11+dfsg-1ubuntu7.3","1:2.11+dfsg-1ubuntu7.4","1:2.11+dfsg-1ubuntu7.5","1:2.11+dfsg-1ubuntu7.6","1:2.11+dfsg-1ubuntu7.7","1:2.11+dfsg-1ubuntu7.8","1:2.11+dfsg-1ubuntu7.9","1:2.11+dfsg-1ubuntu7.10","1:2.11+dfsg-1ubuntu7.12","1:2.11+dfsg-1ubuntu7.13","1:2.11+dfsg-1ubuntu7.14","1:2.11+dfsg-1ubuntu7.15","1:2.11+dfsg-1ubuntu7.17","1:2.11+dfsg-1ubuntu7.18","1:2.11+dfsg-1ubuntu7.19","1:2.11+dfsg-1ubuntu7.20","1:2.11+dfsg-1ubuntu7.21","1:2.11+dfsg-1ubuntu7.22","1:2.11+dfsg-1ubuntu7.23","1:2.11+dfsg-1ubuntu7.25"],"bundled":5},{"source":"osv","ecosystem":"Ubuntu:20.04:LTS","package":"qemu","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1:4.2-3ubuntu6.1"}]}],"versions":["1:4.0+dfsg-0ubuntu9","1:4.0+dfsg-0ubuntu10","1:4.2-1ubuntu1","1:4.2-1ubuntu2","1:4.2-3ubuntu1","1:4.2-3ubuntu2","1:4.2-3ubuntu3","1:4.2-3ubuntu4","1:4.2-3ubuntu5","1:4.2-3ubuntu6"],"bundled":5},{"source":"osv","ecosystem":"openSUSE:Tumbleweed","package":"qemu","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"6.1.0-32.1"}]}],"bundled":135}],"products":[{"vendor":"qemu","product":"qemu"}],"references":[{"url":"http://www.openwall.com/lists/oss-security/2020/04/24/2","tags":["x_refsource_MISC","x_transferred","Mailing 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Advisory","fix"]},{"url":"https://git.qemu.org/?p=qemu.git%3Ba=commit%3Bh=ac2071c3791b67fc7af78b8ceb320c01ca1b5df7","tags":["x_refsource_CONFIRM","x_transferred","web"]},{"url":"https://usn.ubuntu.com/4372-1/","tags":["vendor-advisory","x_refsource_UBUNTU","x_transferred","web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2020-11869"},{"url":"https://git.qemu.org/?p=qemu.git;a=commit;h=ac2071c3791b67fc7af78b8ceb320c01ca1b5df7"},{"url":"https://github.com/advisories/GHSA-v28g-xr7w-fvp4"},{"url":"https://docs.bell-sw.com/security/cves/CVE-2020-11869","tags":["advisory"]},{"url":"https://security-tracker.debian.org/tracker/CVE-2020-11869","tags":["advisory"]},{"url":"https://ubuntu.com/security/CVE-2020-11869","tags":["report"]},{"url":"https://www.openwall.com/lists/oss-security/2020/04/24/2","tags":["report"]},{"url":"https://ubuntu.com/security/notices/USN-4372-1","tags":["advisory"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2020-11869","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2019-15034","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2019-20382","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2020-1983","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2020-10702","tags":["report"]},{"url":"","tags":["advisory"]},{"url":"https://www.suse.com/security/cve/CVE-2014-0222","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2014-8106","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2015-5225","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2015-6855","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2015-8504","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2015-8619","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2016-10028","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2016-10155","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2016-1714","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2016-6490","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2016-6836","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2016-7156","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2016-7157","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2016-7161","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2016-7170","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2016-7421","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2016-7422","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2016-7423","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2016-7466","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2016-7907","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-2016-7994","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2016-7995","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2016-8576","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2016-8577","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2016-8578","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2016-8667","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2016-8668","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2016-8669","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2016-8909","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2016-8910","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2016-9101","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2016-9102","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2016-9103","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2016-9104","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2016-9105","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2016-9106","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2016-9602","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2016-9907","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2016-9921","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2017-10664","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2017-10806","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2017-11334","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2017-11434","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2017-13673","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2017-13711","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2017-14167","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2017-15038","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2017-15118","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-201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integer overflow was found in QEMU 4.0.1 through 4.2.0 in the way it implemented ATI VGA emulation. This flaw occurs in the ati_2d_blt() routine in hw/display/ati-2d.c while handling MMIO write operations through the ati_mm_write() callback. A malicious guest could abuse this flaw to crash the QEMU process, resulting in a denial of service.","status":"published","published":"2020-04-27T19:00:34Z","modified":"2024-08-04T11:42:00.811Z","updated_at":"2026-11-02T14:35:57.352161Z"}],"euvd":[{"id":"EUVD-2020-4209","description":"An integer overflow was found in QEMU 4.0.1 through 4.2.0 in the way it implemented ATI VGA emulation. This flaw occurs in the ati_2d_blt() routine in hw/display/ati-2d.c while handling MMIO write operations through the ati_mm_write() callback. A malicious guest could abuse this flaw to crash the QEMU process, resulting in a denial of service.","status":"published","published":"2020-04-27T19:00:34Z","modified":"2024-08-04T11:42:00Z","updated_at":"2026-11-03T03:07:41.956166Z"}],"ghsa":[{"id":"GHSA-v28g-xr7w-fvp4","title":"An integer overflow was found in QEMU 4.0.1 through 4.2.0 in the way it implemented ATI VGA...","description":"An integer overflow was found in QEMU 4.0.1 through 4.2.0 in the way it implemented ATI VGA emulation. This flaw occurs in the ati_2d_blt() routine in hw/display/ati-2d.c while handling MMIO write operations through the ati_mm_write() callback. A malicious guest could abuse this flaw to crash the QEMU process, resulting in a denial of service.","status":"published","published":"2022-05-24T17:16:34Z","modified":"2023-01-29T05:02:21Z","updated_at":"2026-11-02T14:45:03.903455Z"}],"nvd":[{"id":"CVE-2020-11869","description":"An integer overflow was found in QEMU 4.0.1 through 4.2.0 in the way it implemented ATI VGA emulation. This flaw occurs in the ati_2d_blt() routine in hw/display/ati-2d.c while handling MMIO write operations through the ati_mm_write() callback. A malicious guest could abuse this flaw to crash the QEMU process, resulting in a denial of service.","status":"published","published":"2020-04-27T19:15:12.603Z","modified":"2026-06-17T02:50:57.143Z","cvss":[{"version":"3.1","score":3.3,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L","level":"low","assessor":"primary"},{"version":"2.0","score":2.1,"vector":"AV:L/AC:L/Au:N/C:N/I:N/A:P","level":"low","assessor":"primary"}],"cwes":["CWE-190"],"updated_at":"2026-11-02T14:05:59.718774Z"}],"osv":[{"id":"BELL-CVE-2020-11869","title":"CVE-2020-11869 does not affect BellSoft software","status":"withdrawn","published":"2020-04-27T19:15:00Z","modified":"2026-01-26T09:46:21.313836Z","cvss":[{"version":"3.1","score":3.3,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L","level":"low"}],"updated_at":"2026-11-02T15:28:15.340685Z"},{"id":"CVE-2020-11869","description":"An integer overflow was found in QEMU 4.0.1 through 4.2.0 in the way it implemented ATI VGA emulation. This flaw occurs in the ati_2d_blt() routine in hw/display/ati-2d.c while handling MMIO write operations through the ati_mm_write() callback. A malicious guest could abuse this flaw to crash the QEMU process, resulting in a denial of service.","status":"published","published":"2020-04-27T19:15:12.603Z","modified":"2026-10-24T10:30:31.91689947Z","cvss":[{"version":"3.1","score":3.3,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L","level":"low"}],"updated_at":"2026-11-02T15:44:14.034736Z"},{"id":"DEBIAN-CVE-2020-11869","description":"An integer overflow was found in QEMU 4.0.1 through 4.2.0 in the way it implemented ATI VGA emulation. This flaw occurs in the ati_2d_blt() routine in hw/display/ati-2d.c while handling MMIO write operations through the ati_mm_write() callback. A malicious guest could abuse this flaw to crash the QEMU process, resulting in a denial of service.","status":"published","published":"2020-04-27T19:15:12.603Z","modified":"2026-10-26T12:01:23.912815284Z","cvss":[{"version":"3.1","score":3.3,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L","level":"low"}],"updated_at":"2026-11-02T15:45:32.862554Z"},{"id":"UBUNTU-CVE-2020-11869","description":"An integer overflow was found in QEMU 4.0.1 through 4.2.0 in the way it implemented ATI VGA emulation. This flaw occurs in the ati_2d_blt() routine in hw/display/ati-2d.c while handling MMIO write operations through the ati_mm_write() callback. A malicious guest could abuse this flaw to crash the QEMU process, resulting in a denial of service.","status":"published","published":"2020-04-27T19:15:00Z","modified":"2026-02-04T03:38:54.428192Z","cvss":[{"version":"3.1","score":3.3,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L","level":"low"}],"updated_at":"2026-11-02T15:54:22.212782Z"},{"id":"openSUSE-SU-2024:11287-1","title":"qemu-6.1.0-32.1 on GA media","description":"These are all security issues fixed in the qemu-6.1.0-32.1 package on the GA media of openSUSE Tumbleweed.","status":"published","published":"2024-06-15T00:00:00Z","modified":"2025-05-07T18:08:57.481645Z","updated_at":"2026-11-02T16:58:34.894275Z"},{"id":"USN-4372-1","title":"qemu vulnerabilities","description":"It was discovered that QEMU incorrectly handled bochs-display devices. A\nlocal attacker in a guest could use this to cause a denial of service or\npossibly execute arbitrary code in the host. This issue only affected\nUbuntu 19.10. (CVE-2019-15034)\n\nIt was discovered that QEMU incorrectly handled memory during certain VNC\noperations. A remote attacker could possibly use this issue to cause QEMU\nto consume resources, resulting in a denial of service. This issue only\naffected Ubuntu 16.04 LTS, Ubuntu 18.04 LTS, and Ubuntu 19.10.\n(CVE-2019-20382)\n\nIt was discovered that QEMU incorrectly generated QEMU Pointer\nAuthentication signatures on ARM. A local attacker could possibly use this\nissue to bypass PAuth. This issue only affected Ubuntu 19.10.\n(CVE-2020-10702)\n\nZiming Zhang discovered that QEMU incorrectly handled ATI VGA emulation. A\nlocal attacker in a guest could use this issue to cause QEMU to crash,\nresulting in a denial of service. This issue only affected Ubuntu 20.04\nLTS. (CVE-2020-11869)\n\nAviv Sasson discovered that QEMU incorrectly handled Slirp networking. A\nremote attacker could use this issue to cause QEMU to crash, resulting in a\ndenial of service, or possibly execute arbitrary code. This issue only\naffected Ubuntu 16.04 LTS, Ubuntu 18.04 LTS, and Ubuntu 19.10.\n(CVE-2020-1983)\n","status":"published","published":"2020-05-21T17:08:15Z","modified":"2026-04-27T15:48:44.199208977Z","updated_at":"2026-11-02T16:58:14.547547Z"}]}}