CVE-2018-19961

NameCVE-2018-19961
DescriptionAn issue was discovered in Xen through 4.11.x on AMD x86 platforms, possibly allowing guest OS users to gain host OS privileges because TLB flushes do not always occur after IOMMU mapping changes.
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)
ReferencesDSA-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+deb8u1vulnerable
stretch (security), stretch4.8.5+shim4.10.2+xsa282-1+deb9u11fixed
buster, sid4.11.1+26-g87f51bf366-3fixed

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
xensource(unstable)4.11.1-1medium
xensourcestretch4.8.5+shim4.10.2+xsa282-1+deb9u11mediumDSA-4369-1

Notes

https://xenbits.xen.org/xsa/advisory-275.txt

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