CVE-2015-7814

NameCVE-2015-7814
DescriptionRace condition in the relinquish_memory function in arch/arm/domain.c in Xen 4.6.x and earlier allows local domains with partial management control to cause a denial of service (host crash) via vectors involving the destruction of a domain and using XENMEM_decrease_reservation to reduce the memory of the domain.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SuSE, Mageia, GitHub code/issues, web search, more)
ReferencesDSA-3414-1
NVD severitymedium (attack range: local)

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
xen (PTS)wheezy4.1.4-3+deb7u9fixed
wheezy (security)4.1.6.lts1-10fixed
jessie4.4.1-9+deb8u9fixed
jessie (security)4.4.1-9+deb8u10fixed
buster, sid, stretch (security), stretch4.8.1-1+deb9u3fixed

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
xensource(unstable)4.6.0-1medium
xensourcejessie4.4.1-9+deb8u3mediumDSA-3414-1
xensourcesqueeze(unfixed)end-of-life
xensourcewheezy(not affected)

Notes

http://xenbits.xen.org/xsa/advisory-147.html
[wheezy] - xen <not-affected> (arm not yet supported)
[squeeze] - xen <end-of-life> (not supported in squeeze-lts)

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