CVE-2016-4963

NameCVE-2016-4963
DescriptionThe libxl device-handling in Xen through 4.6.x allows local guest OS users with access to the driver domain to cause a denial of service (management tool confusion) by manipulating information in the backend directories in xenstore.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SuSE, Mageia, GitHub code/issues, web search, more)
NVD severitylow (attack range: local)

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
xen (PTS)wheezy4.1.4-3+deb7u9vulnerable
wheezy (security)4.1.6.lts1-8vulnerable
jessie4.4.1-9+deb8u9vulnerable
jessie (security)4.4.1-9+deb8u10vulnerable
buster, sid, stretch4.8.1-1+deb9u1fixed
stretch (security)4.8.1-1+deb9u3fixed

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
xensource(unstable)4.8.0~rc3-1low

Notes

[jessie] - xen <ignored> (Minor issue, too intrusive to backport)
[wheezy] - xen <no-dsa> (Minor issue, too intrusive to backport, libvirt doesn't have libxl driver enabled)
http://xenbits.xen.org/xsa/advisory-178.html

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