Description

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.

References

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

Details

Risk Information

CVSS v2

CVSS v3