CVE-2018-19967

NameCVE-2018-19967
DescriptionAn issue was discovered in Xen through 4.11.x on Intel x86 platforms allowing guest OS users to cause a denial of service (host OS hang) because Xen does not work around Intel's mishandling of certain HLE transactions associated with the KACQUIRE instruction prefix.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, Mageia, GitHub code/issues, web search, more)
ReferencesDLA-1577-1, DSA-4369-1
NVD severitymedium (attack range: local)

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
xen (PTS)jessie4.4.1-9+deb8u10vulnerable
jessie (security)4.4.4lts4-0+deb8u1fixed
stretch (security), stretch4.8.5+shim4.10.2+xsa282-1+deb9u11fixed
buster, sid4.11.1-1fixed

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
xensource(unstable)4.11.1-1medium
xensourcejessie4.4.4lts4-0+deb8u1mediumDLA-1577-1
xensourcestretch4.8.5+shim4.10.2+xsa282-1+deb9u11mediumDSA-4369-1

Notes

https://xenbits.xen.org/xsa/advisory-282.txt

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