CVE-2016-9381

NameCVE-2016-9381
DescriptionRace condition in QEMU in Xen allows local x86 HVM guest OS administrators to gain privileges by changing certain data on shared rings, aka a "double fetch" vulnerability.
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)
ReferencesDLA-720-1
NVD severitymedium

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
buster, buster (security)4.11.3+24-g14b62ab3e5-1~deb10u1fixed
bullseye4.11.4-1fixed
sid4.11.4+24-gddaaccbbab-1fixed

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
xensource(unstable)4.4.0-1
xensourcewheezy4.1.6.lts1-4DLA-720-1

Notes

Xen switched to qemu-system in 4.4.0-1
https://xenbits.xen.org/xsa/advisory-197.html

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