CVE-2012-0218

NameCVE-2012-0218
DescriptionXen 3.4, 4.0, and 4.1, when the guest OS has not registered a handler for a syscall or sysenter instruction, does not properly clear a flag for exception injection when injecting a General Protection Fault, which allows local PV guest OS users to cause a denial of service (guest crash) by later triggering an exception that would normally be handled within Xen.
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-2501-1
NVD severitylow (attack range: local)

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
xen (PTS)jessie4.4.1-9+deb8u10fixed
jessie (security)4.4.4lts1-0+deb8u1fixed
buster, sid, stretch4.8.3+xsa267+shim4.10.1+xsa267-1+deb9u9fixed
stretch (security)4.8.4+xsa273+shim4.10.1+xsa273-1+deb9u10fixed

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
xensource(unstable)4.1.3~rc1+hg-20120614.a9c0a89c08f2-1low
xensourcesqueeze4.0.1-5.2lowDSA-2501-1
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