CVE-2013-1917

NameCVE-2013-1917
DescriptionXen 3.1 through 4.x, when running 64-bit hosts on Intel CPUs, does not clear the NT flag when using an IRET after a SYSENTER instruction, which allows PV guest users to cause a denial of service (hypervisor crash) by triggering a #GP fault, which is not properly handled by another IRET instruction.
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-2662-1

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
xen (PTS)buster, buster (security)4.11.4+107-gef32c7afa2-1fixed
bullseye4.14.3+32-g9de3671772-1~deb11u1fixed
bullseye (security)4.14.4+74-gd7b22226b5-1fixed
bookworm, sid4.16.1-1fixed

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
xensourcesqueeze4.0.1-5.10DSA-2662-1
xensource(unstable)4.1.4-3

Notes

http://lists.xen.org/archives/html/xen-announce/2013-04/msg00005.html

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