CVE-2017-15594

Name	CVE-2017-15594
Description	An issue was discovered in Xen through 4.9.x allowing x86 SVM PV guest OS users to cause a denial of service (hypervisor crash) or gain privileges because IDT settings are mishandled during CPU hotplugging.
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-1559-1, DSA-4050-1
NVD severity	medium (attack range: local)

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
xen (PTS)	jessie	4.4.1-9+deb8u10	vulnerable
	jessie (security)	4.4.4lts4-0+deb8u1	fixed
	stretch (security), stretch	4.8.5+shim4.10.2+xsa282-1+deb9u11	fixed
	buster, sid	4.11.1+26-g87f51bf366-3	fixed

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

Package	Type	Release	Fixed Version	Urgency	Origin
xen	source	(unstable)	4.8.2+xsa245-0+deb9u1	medium
xen	source	jessie	4.4.4lts3-0+deb8u1	medium	DLA-1559-1
xen	source	stretch	4.8.2+xsa245-0+deb9u1	medium	DSA-4050-1

[wheezy] - xen <ignored> (minor issue)
https://xenbits.xen.org/xsa/advisory-244.html