CVE-2016-7170

NameCVE-2016-7170
DescriptionThe vmsvga_fifo_run function in hw/display/vmware_vga.c in QEMU (aka Quick Emulator) allows local guest OS administrators to cause a denial of service (out-of-bounds write and QEMU process crash) via vectors related to cursor.mask[] and cursor.image[] array sizes when processing a DEFINE_CURSOR svga command.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SuSE, Mageia, GitHub code/issues, web search, more)
ReferencesDLA-652-1, DLA-653-1
NVD severitylow (attack range: local)
Debian Bugs837316

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
qemu (PTS)wheezy1.1.2+dfsg-6a+deb7u12vulnerable
wheezy (security)1.1.2+dfsg-6+deb7u24fixed
jessie (security), jessie1:2.1+dfsg-12+deb8u6vulnerable
stretch1:2.8+dfsg-6+deb9u2fixed
stretch (security)1:2.8+dfsg-6+deb9u3fixed
buster, sid1:2.10.0+dfsg-2fixed
qemu-kvm (PTS)wheezy1.1.2+dfsg-6+deb7u12vulnerable
wheezy (security)1.1.2+dfsg-6+deb7u24fixed

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
qemusource(unstable)1:2.8+dfsg-1low837316
qemusourcewheezy1.1.2+dfsg-6+deb7u16lowDLA-652-1
qemu-kvmsource(unstable)(unfixed)low
qemu-kvmsourcewheezy1.1.2+dfsg-6+deb7u16lowDLA-653-1

Notes

[jessie] - qemu <no-dsa> (Minor issue)
https://lists.gnu.org/archive/html/qemu-devel/2016-09/msg01764.html
http://git.qemu.org/?p=qemu.git;a=commit;h=167d97a3def77ee2dbf6e908b0ecbfe2103977db

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