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 (attack range: local)
Debian Bugs780227

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
xen (PTS)jessie (security), jessie4.4.1-9+deb8u10fixed
buster, sid, stretch4.8.3+comet2+shim4.10.0+comet3-1+deb9u5fixed
stretch (security)4.8.3+xsa267+shim4.10.1+xsa267-1+deb9u8fixed

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
xensource(unstable)4.4.1-8high780227
xensourcesqueeze(unfixed)end-of-life
xensourcewheezy4.1.4-3+deb7u5highDSA-3181-1

Notes

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

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