CVE-2016-6258

Name	CVE-2016-6258
Description	The PV pagetable code in arch/x86/mm.c in Xen 4.7.x and earlier allows local 32-bit PV guest OS administrators to gain host OS privileges by leveraging fast-paths for updating pagetable entries.
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	DLA-571-1, DSA-3633-1
NVD severity	high

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	4.11.4+57-g41a822c392-2	fixed
	buster (security)	4.11.4+99-g8bce4698f6-1	fixed
	bullseye, sid	4.14.1+11-gb0b734a8b3-1	fixed

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

Package	Type	Release	Fixed Version	Origin
xen	source	wheezy	4.1.6.lts1-1	DLA-571-1
xen	source	jessie	4.4.1-9+deb8u6	DSA-3633-1
xen	source	(unstable)	4.8.0~rc3-1

http://xenbits.xen.org/xsa/advisory-182.html