CVE-2016-1571

Name	CVE-2016-1571
Description	The paging_invlpg function in include/asm-x86/paging.h in Xen 3.3.x through 4.6.x, when using shadow mode paging or nested virtualization is enabled, allows local HVM guest users to cause a denial of service (host crash) via a non-canonical guest address in an INVVPID instruction, which triggers a hypervisor bug check.
Source	CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)
References	DLA-479-1, DSA-3519-1
Debian Bugs	823620

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
xen (PTS)	bullseye	4.14.6-1	fixed
	bullseye (security)	4.14.5+94-ge49571868d-1	fixed
	bookworm	4.17.3+10-g091466ba55-1~deb12u1	fixed
	sid, trixie	4.17.3+36-g54dacb5c02-1	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	(unfixed)	end-of-life
xen	source	wheezy	4.1.6.1-1+deb7u1		DLA-479-1
xen	source	jessie	4.4.1-9+deb8u4		DSA-3519-1
xen	source	(unstable)	4.8.0~rc3-1			823620

[squeeze] - xen <end-of-life> (Unsupported in Squeeze LTS)
http://xenbits.xen.org/xsa/advisory-168.html