CVE-2019-17346

Name	CVE-2019-17346
Description	An issue was discovered in Xen through 4.11.x allowing x86 PV guest OS users to cause a denial of service or gain privileges because of an incompatibility between Process Context Identifiers (PCID) and TLB flushes.
Source	CVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, Mageia, GitHub advisories/code/issues, web search, more)
Debian Bugs	929993

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
xen (PTS)	buster, buster (security)	4.11.4+107-gef32c7afa2-1	fixed
	bullseye, bullseye (security)	4.14.5+94-ge49571868d-1	fixed
	bookworm, sid	4.17.1+2-gb773c48e36-1	fixed

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

Package	Type	Release	Fixed Version	Debian Bugs
xen	source	jessie	(not affected)
xen	source	stretch	4.8.5.final+shim4.10.4-1+deb9u12
xen	source	(unstable)	4.11.1+92-g6c33308a8d-1	929993

[jessie] - xen <not-affected> (PCID support not backported)
https://xenbits.xen.org/xsa/advisory-292.html