CVE-2012-3494

NameCVE-2012-3494
DescriptionThe set_debugreg hypercall in include/asm-x86/debugreg.h in Xen 4.0, 4.1, and 4.2, and Citrix XenServer 6.0.2 and earlier, when running on x86-64 systems, allows local OS guest users to cause a denial of service (host crash) by writing to the reserved bits of the DR7 debug control register.
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-2544-1
NVD severitylow
Debian Bugs686764

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
buster4.11.4+24-gddaaccbbab-1~deb10u1fixed
buster (security)4.11.4+37-g3263f257ca-1fixed
bullseye, sid4.14.0+80-gd101b417b7-1fixed

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
xensourcesqueeze4.0.1-5.4DSA-2544-1
xensource(unstable)4.1.3-2686764

Search for package or bug name: Reporting problems