CVE-2013-4368

Name	CVE-2013-4368
Description	The outs instruction emulation in Xen 3.1.x, 4.2.x, 4.3.x, and earlier, when using FS: or GS: segment override, uses an uninitialized variable as a segment base, which allows local 64-bit PV guests to obtain sensitive information (hypervisor stack content) via unspecified vectors related to stale data in a segment register.
Source	CVE (at NVD; oss-sec, fulldisc, OSVDB, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SuSE, Mageia, more)
References	DSA-3006-1
NVD severity	low (attack range: local)
Debian/oldstable	package xen is vulnerable.
Debian/stable	not vulnerable.
Debian/testing	not vulnerable.
Debian/unstable	not vulnerable.

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
xen (PTS)	squeeze (security), squeeze	4.0.1-5.11	vulnerable
	wheezy	4.1.4-3+deb7u3	fixed
	wheezy (security)	4.1.4-3+deb7u4	fixed
	jessie	4.4.1-6	fixed
	sid	4.4.1-7	fixed

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

Package	Type	Release	Fixed Version	Urgency	Origin
xen	source	(unstable)	4.4.0-1	low
xen	source	squeeze	(unfixed)	end-of-life
xen	source	wheezy	4.1.4-3+deb7u2	low	DSA-3006-1

[squeeze] - xen <end-of-life> (Unsupported in squeeze-lts)