{"id":"CVE-2017-2620","url":"https://www.cyber-defence.io/tools/cve/CVE-2017-2620","generatedAt":"2026-10-29T01:52:33.659Z","title":"Quick emulator (QEMU) before 2.8 built with the Cirrus CLGD 54xx VGA Emulator support is vulnerable to an out-of-bounds access issue.","description":"Quick emulator (QEMU) before 2.8 built with the Cirrus CLGD 54xx VGA Emulator support is vulnerable to an out-of-bounds access issue. The issue could occur while copying VGA data in cirrus_bitblt_cputovideo. A privileged user inside guest could use this flaw to crash the QEMU process OR potentially execute arbitrary code on host with privileges of the QEMU process.","published":"2018-07-27T19:29:00.000Z","lastModified":"2026-06-17T01:16:32.000Z","status":"Modified","sourceIdentifier":"secalert@redhat.com","cvss":{"version":"3.0","score":9.9,"severity":"CRITICAL","vector":"CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H"},"cwe":["CWE-787","CWE-125"],"affected":["qemu/qemu","citrix/xenserver","redhat/openstack","debian/debian linux","redhat/enterprise linux desktop","redhat/enterprise linux server","redhat/enterprise linux server aus","redhat/enterprise linux server eus","redhat/enterprise linux workstation","xen/xen"],"epss":{"score":0.03559,"percentile":0.8927,"date":"2026-10-27","history":[]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"high","text":"High impact if exploited, but EPSS currently rates exploitation as unlikely (3.56%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit."},"changes":[],"references":[{"url":"http://rhn.redhat.com/errata/RHSA-2017-0328.html","tags":["Third Party Advisory"],"source":"secalert@redhat.com"},{"url":"http://rhn.redhat.com/errata/RHSA-2017-0329.html","tags":["Third Party Advisory"],"source":"secalert@redhat.com"},{"url":"http://rhn.redhat.com/errata/RHSA-2017-0330.html","tags":["Third Party Advisory"],"source":"secalert@redhat.com"},{"url":"http://rhn.redhat.com/errata/RHSA-2017-0331.html","tags":["Third Party Advisory"],"source":"secalert@redhat.com"},{"url":"http://rhn.redhat.com/errata/RHSA-2017-0332.html","tags":["Third Party Advisory"],"source":"secalert@redhat.com"},{"url":"http://rhn.redhat.com/errata/RHSA-2017-0333.html","tags":["Third Party Advisory"],"source":"secalert@redhat.com"},{"url":"http://rhn.redhat.com/errata/RHSA-2017-0334.html","tags":["Third Party Advisory"],"source":"secalert@redhat.com"},{"url":"http://rhn.redhat.com/errata/RHSA-2017-0350.html","tags":["Third Party Advisory"],"source":"secalert@redhat.com"},{"url":"http://rhn.redhat.com/errata/RHSA-2017-0351.html","tags":["Third Party Advisory"],"source":"secalert@redhat.com"},{"url":"http://rhn.redhat.com/errata/RHSA-2017-0352.html","tags":["Third Party Advisory"],"source":"secalert@redhat.com"},{"url":"http://rhn.redhat.com/errata/RHSA-2017-0396.html","tags":["Third Party Advisory"],"source":"secalert@redhat.com"},{"url":"http://rhn.redhat.com/errata/RHSA-2017-0454.html","tags":["Third Party Advisory"],"source":"secalert@redhat.com"},{"url":"http://www.openwall.com/lists/oss-security/2017/02/21/1","tags":["Mailing List","Third Party Advisory"],"source":"secalert@redhat.com"},{"url":"http://www.securityfocus.com/bid/96378","tags":["Third Party Advisory","VDB Entry"],"source":"secalert@redhat.com"},{"url":"http://www.securitytracker.com/id/1037870","tags":["Third Party Advisory","VDB Entry"],"source":"secalert@redhat.com"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2017-2620","tags":["Issue Tracking","Third Party Advisory"],"source":"secalert@redhat.com"},{"url":"https://lists.debian.org/debian-lts-announce/2018/02/msg00005.html","tags":["Third Party Advisory"],"source":"secalert@redhat.com"},{"url":"https://lists.debian.org/debian-lts-announce/2018/09/msg00007.html","source":"secalert@redhat.com"},{"url":"https://lists.gnu.org/archive/html/qemu-devel/2017-02/msg04700.html","tags":["Patch","Third Party Advisory"],"source":"secalert@redhat.com"},{"url":"https://security.gentoo.org/glsa/201703-07","tags":["Third Party Advisory"],"source":"secalert@redhat.com"},{"url":"https://security.gentoo.org/glsa/201704-01","tags":["Third Party Advisory"],"source":"secalert@redhat.com"},{"url":"https://support.citrix.com/article/CTX220771","tags":["Third Party Advisory"],"source":"secalert@redhat.com"},{"url":"https://xenbits.xen.org/xsa/advisory-209.html","tags":["Third Party Advisory"],"source":"secalert@redhat.com"},{"url":"http://rhn.redhat.com/errata/RHSA-2017-0328.html","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://rhn.redhat.com/errata/RHSA-2017-0329.html","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://rhn.redhat.com/errata/RHSA-2017-0330.html","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://rhn.redhat.com/errata/RHSA-2017-0331.html","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://rhn.redhat.com/errata/RHSA-2017-0332.html","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://rhn.redhat.com/errata/RHSA-2017-0333.html","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://rhn.redhat.com/errata/RHSA-2017-0334.html","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://rhn.redhat.com/errata/RHSA-2017-0350.html","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://rhn.redhat.com/errata/RHSA-2017-0351.html","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://rhn.redhat.com/errata/RHSA-2017-0352.html","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://rhn.redhat.com/errata/RHSA-2017-0396.html","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://rhn.redhat.com/errata/RHSA-2017-0454.html","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.openwall.com/lists/oss-security/2017/02/21/1","tags":["Mailing List","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.securityfocus.com/bid/96378","tags":["Third Party Advisory","VDB Entry"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.securitytracker.com/id/1037870","tags":["Third Party Advisory","VDB Entry"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2017-2620","tags":["Issue Tracking","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://lists.debian.org/debian-lts-announce/2018/02/msg00005.html","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://lists.debian.org/debian-lts-announce/2018/09/msg00007.html","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://lists.gnu.org/archive/html/qemu-devel/2017-02/msg04700.html","tags":["Patch","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://security.gentoo.org/glsa/201703-07","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://security.gentoo.org/glsa/201704-01","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://support.citrix.com/article/CTX220771","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://xenbits.xen.org/xsa/advisory-209.html","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2017-2620","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}