CVE-2016-4439

NameCVE-2016-4439
DescriptionThe esp_reg_write function in hw/scsi/esp.c in the 53C9X Fast SCSI Controller (FSC) support in QEMU does not properly check command buffer length, which allows local guest OS administrators to cause a denial of service (out-of-bounds write and QEMU process crash) or potentially execute arbitrary code on the QEMU host via unspecified vectors.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SuSE, Mageia, GitHub code/issues, web search, more)
ReferencesDLA-573-1, DLA-574-1
NVD severitymedium (attack range: local)
Debian Bugs824856

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+deb7u20fixed
jessie (security), jessie1:2.1+dfsg-12+deb8u6vulnerable
stretch, sid1:2.8+dfsg-3fixed
qemu-kvm (PTS)wheezy1.1.2+dfsg-6+deb7u12vulnerable
wheezy (security)1.1.2+dfsg-6+deb7u20fixed

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
qemusource(unstable)1:2.6+dfsg-2medium824856
qemusourcewheezy1.1.2+dfsg-6+deb7u14mediumDLA-573-1
qemu-kvmsource(unstable)(unfixed)medium
qemu-kvmsourcewheezy1.1.2+dfsg-6+deb7u14mediumDLA-574-1

Notes

[jessie] - qemu <no-dsa> (Minor issue; can be fixed along with a future DSA)
https://lists.gnu.org/archive/html/qemu-devel/2016-05/msg03273.html
https://bugzilla.redhat.com/show_bug.cgi?id=1337502

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