CVE-2016-7093

Name	CVE-2016-7093
Description	Xen 4.5.3, 4.6.3, and 4.7.x allow local HVM guest OS administrators to overwrite hypervisor memory and consequently gain host OS privileges by leveraging mishandling of instruction pointer truncation during emulation.
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	high (attack range: local)

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	Origin	Debian Bugs
xen	source	(unstable)	(not affected)

- xen <not-affected> (Affects only 4.7.0 and later; 4.6.3 and 4.5.3)
http://xenbits.xen.org/xsa/advisory-186.html