Heap-based buffer overflow in Cirrus CLGD 54xx VGA Emulator in Quick Emulator (Qemu) 2.8 and earlier allows local guest OS users to execute arbitrary code or cause a denial of service (crash) via vectors related to a VNC client updating its display after a VGA operation.
https://bugzilla.redhat.com/show_bug.cgi?id=1430056
http://www.openwall.com/lists/oss-security/2017/04/21/1
http://ubuntu.com/usn/usn-3289-1
https://security.gentoo.org/glsa/201706-03
http://www.securityfocus.com/bid/97955
https://support.citrix.com/article/CTX230138
http://www.securityfocus.com/bid/102129
https://access.redhat.com/errata/RHSA-2017:1441
https://access.redhat.com/errata/RHSA-2017:1430
https://access.redhat.com/errata/RHSA-2017:1206
https://access.redhat.com/errata/RHSA-2017:1205
https://access.redhat.com/errata/RHSA-2017:0988
https://access.redhat.com/errata/RHSA-2017:0984
https://access.redhat.com/errata/RHSA-2017:0983
https://access.redhat.com/errata/RHSA-2017:0982
https://access.redhat.com/errata/RHSA-2017:0981
https://access.redhat.com/errata/RHSA-2017:0980
https://lists.debian.org/debian-lts-announce/2018/09/msg00007.html
Source: MITRE
Published: 2017-07-25
Updated: 2021-08-04
Type: CWE-119
Base Score: 4.6
Vector: AV:L/AC:L/Au:N/C:P/I:P/A:P
Impact Score: 6.4
Exploitability Score: 3.9
Severity: MEDIUM
Base Score: 7.8
Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Impact Score: 5.9
Exploitability Score: 1.8
Severity: HIGH