CVE-2012-0218

Name	CVE-2012-0218
Description	Xen 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.
Source	CVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, Mageia, GitHub code/issues, web search, more)
References	DSA-2501-1

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
xen (PTS)	stretch (security), stretch	4.8.5.final+shim4.10.4-1+deb9u12	fixed
	buster, buster (security)	4.11.4+107-gef32c7afa2-1	fixed
	bullseye	4.14.3+32-g9de3671772-1~deb11u1	fixed
	bullseye (security)	4.14.4+74-gd7b22226b5-1	fixed
	bookworm, sid	4.16.1-1	fixed

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

Package	Type	Release	Fixed Version	Urgency	Origin	Debian Bugs
xen	source	squeeze	4.0.1-5.2		DSA-2501-1
xen	source	(unstable)	4.1.3~rc1+hg-20120614.a9c0a89c08f2-1