CVE-2014-3967

Name	CVE-2014-3967
Description	The HVMOP_inject_msi function in Xen 4.2.x, 4.3.x, and 4.4.x does not properly check the return value from the IRQ setup check, which allows local HVM guest administrators to cause a denial of service (NULL pointer dereference and crash) via unspecified vectors.
Source	CVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SuSE, Mageia, GitHub code/issues, web search, more)
NVD severity	medium (attack range: remote)
Debian Bugs	757724

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
xen (PTS)	wheezy	4.1.4-3+deb7u9	fixed
	wheezy (security)	4.1.6.lts1-8	fixed
	jessie	4.4.1-9+deb8u9	fixed
	jessie (security)	4.4.1-9+deb8u10	fixed
	buster, sid, stretch	4.8.1-1+deb9u1	fixed
	stretch (security)	4.8.1-1+deb9u3	fixed

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

Package	Type	Release	Fixed Version	Urgency	Debian Bugs
xen	source	(unstable)	4.4.1-1	medium	757724
xen	source	squeeze	(not affected)
xen	source	wheezy	(not affected)

Notes

[wheezy] - xen <not-affected> (Xen versions from 4.2 onwards are vulnerable)
[squeeze] - xen <not-affected> (Xen versions from 4.2 onwards are vulnerable)