CVE-2016-9922

NameCVE-2016-9922
DescriptionThe cirrus_do_copy function in hw/display/cirrus_vga.c in QEMU (aka Quick Emulator), when cirrus graphics mode is VGA, allows local guest OS privileged users to cause a denial of service (divide-by-zero error and QEMU process crash) via vectors involving blit pitch values.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)
ReferencesDLA-1497-1, DLA-764-1, DLA-765-1
Debian Bugs847960

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
qemu (PTS)jessie, jessie (lts)1:2.1+dfsg-12+deb8u23fixed
stretch (security)1:2.8+dfsg-6+deb9u17fixed
stretch (lts), stretch1:2.8+dfsg-6+deb9u19fixed
buster (security), buster, buster (lts)1:3.1+dfsg-8+deb10u12fixed
bullseye1:5.2+dfsg-11+deb11u3fixed
bullseye (security)1:5.2+dfsg-11+deb11u2fixed
bookworm1:7.2+dfsg-7+deb12u7fixed
sid, trixie1:9.2.0+ds-2fixed

The information below is based on the following data on fixed versions.

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
qemusourcewheezy1.1.2+dfsg-6+deb7u19DLA-764-1
qemusourcejessie1:2.1+dfsg-12+deb8u7DLA-1497-1
qemusource(unstable)1:2.8+dfsg-1847960
qemu-kvmsourcewheezy1.1.2+dfsg-6+deb7u19DLA-765-1
qemu-kvmsource(unstable)(unfixed)

Notes

https://lists.gnu.org/archive/html/qemu-devel/2016-12/msg00442.html
https://bugzilla.redhat.com/show_bug.cgi?id=1334398
Fixed by: http://git.qemu.org/?p=qemu.git;a=commit;h=4299b90e9ba9ce5ca9024572804ba751aa1a7e70 (v2.8.0-rc3)
CVE for the "blit pitch values" issue.
Should be fixed along with CVE-2014-8106

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