CVE-2018-15469

NameCVE-2018-15469
DescriptionAn issue was discovered in Xen through 4.11.x. ARM never properly implemented grant table v2, either in the hypervisor or in Linux. Unfortunately, an ARM guest can still request v2 grant tables; they will simply not be properly set up, resulting in subsequent grant-related hypercalls hitting BUG() checks. An unprivileged guest can cause a BUG() check in the hypervisor, resulting in a denial-of-service (crash).
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-4274-1

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
xen (PTS)jessie4.4.1-9+deb8u10vulnerable
jessie (security)4.4.4lts1-0+deb8u1vulnerable
buster, sid, stretch4.8.3+xsa267+shim4.10.1+xsa267-1+deb9u9vulnerable
stretch (security)4.8.4+xsa273+shim4.10.1+xsa273-1+deb9u10fixed

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
xensource(unstable)(unfixed)
xensourcestretch4.8.4+xsa273+shim4.10.1+xsa273-1+deb9u10DSA-4274-1

Notes

https://xenbits.xen.org/xsa/advisory-268.html

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