CVE-2015-2151

NameCVE-2015-2151
DescriptionThe x86 emulator in Xen 3.2.x through 4.5.x does not properly ignore segment overrides for instructions with register operands, which allows local guest users to obtain sensitive information, cause a denial of service (memory corruption), or possibly execute arbitrary code via unspecified vectors.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, Mageia, GitHub code/issues, web search, more)
ReferencesDSA-3181-1
NVD severityhigh
Debian Bugs780227

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
xen (PTS)stretch (security), stretch4.8.5.final+shim4.10.4-1+deb9u12fixed
buster4.11.4+99-g8bce4698f6-1fixed
buster (security)4.11.4+107-gef32c7afa2-1fixed
bullseye4.14.1+11-gb0b734a8b3-1fixed
sid4.14.2+25-gb6a8c4f72d-1fixed

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
xensourcesqueeze(unfixed)end-of-life
xensourcewheezy4.1.4-3+deb7u5DSA-3181-1
xensource(unstable)4.4.1-8780227

Notes

[squeeze] - xen <end-of-life> (Not supported in Squeeze LTS)
http://xenbits.xen.org/xsa/advisory-123.html

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