CVE-2013-2076

NameCVE-2013-2076
DescriptionXen 4.0.x, 4.1.x, and 4.2.x, when running on AMD64 processors, only save/restore the FOP, FIP, and FDP x87 registers in FXSAVE/FXRSTOR when an exception is pending, which allows one domain to determine portions of the state of floating point instructions of other domains, which can be leveraged to obtain sensitive information such as cryptographic keys, a similar vulnerability to CVE-2006-1056. NOTE: this is the documented behavior of AMD64 processors, but it is inconsistent with Intel processors in a security-relevant fashion that was not addressed by the kernels.
SourceCVE (at NVD; oss-sec, fulldisc, OSVDB, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SuSE, Mageia, more)
ReferencesDSA-3006-1
NVD severitymedium (attack range: remote)
Debian/oldoldstablepackage xen is vulnerable.
Debian/oldstablenot vulnerable.
Debian/stablenot vulnerable.
Debian/testingnot vulnerable.
Debian/unstablenot vulnerable.

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
xen (PTS)squeeze, squeeze (security)4.0.1-5.11vulnerable
wheezy4.1.4-3+deb7u3fixed
wheezy (security)4.1.4-3+deb7u8fixed
stretch, sid, jessie4.4.1-9fixed
jessie (security)4.4.1-9+deb8u1fixed

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
xensource(unstable)4.2.2-1medium
xensourcesqueeze(unfixed)end-of-life
xensourcewheezy4.1.4-3+deb7u2mediumDSA-3006-1

Notes

[squeeze] - xen <end-of-life> (Unsupported in squeeze-lts)
http://lists.xen.org/archives/html/xen-announce/2013-06/msg00002.html

Search for package or bug name: Reporting problems