CVE-2016-7155

NameCVE-2016-7155
Descriptionhw/scsi/vmw_pvscsi.c in QEMU (aka Quick Emulator) allows local guest OS administrators to cause a denial of service (out-of-bounds access or infinite loop, and QEMU process crash) via a crafted page count for descriptor rings.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SuSE, Mageia, GitHub code/issues, web search, more)
NVD severitylow (attack range: local)
Debian Bugs837174

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
qemu (PTS)wheezy1.1.2+dfsg-6a+deb7u12fixed
wheezy (security)1.1.2+dfsg-6+deb7u24fixed
jessie (security), jessie1:2.1+dfsg-12+deb8u6vulnerable
stretch (security), stretch1:2.8+dfsg-6+deb9u3fixed
buster, sid1:2.10.0+dfsg-2fixed
qemu-kvm (PTS)wheezy1.1.2+dfsg-6+deb7u12fixed
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)1:2.6+dfsg-3.1low837174
qemusourcewheezy(not affected)
qemu-kvmsource(unstable)(unfixed)low
qemu-kvmsourcewheezy(not affected)

Notes

[jessie] - qemu <no-dsa> (Minor issue)
[wheezy] - qemu <not-affected> (Vulnerable code not present, introduced after v1.5)
[wheezy] - qemu-kvm <not-affected> (Vulnerable code not present)
Upstream patch: https://lists.gnu.org/archive/html/qemu-devel/2016-09/msg00050.html
https://bugzilla.redhat.com/show_bug.cgi?id=1373462
http://www.openwall.com/lists/oss-security/2016/09/06/2
Vulnerable code introduced after version 1.5: http://wiki.qemu.org/ChangeLog/1.5

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