CVE-2018-10853

NameCVE-2018-10853
DescriptionA flaw was found in the way Linux kernel KVM hypervisor before 4.18 emulated instructions such as sgdt/sidt/fxsave/fxrstor. It did not check current privilege(CPL) level while emulating unprivileged instructions. An unprivileged guest user/process could use this flaw to potentially escalate privileges inside guest.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)
ReferencesDLA-1422-1, DLA-1423-1

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
linux (PTS)bullseye5.10.223-1fixed
bullseye (security)5.10.226-1fixed
bookworm6.1.106-3fixed
bookworm (security)6.1.112-1fixed
trixie6.11.4-1fixed
sid6.11.5-1fixed

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
linuxsourcejessie3.16.57-1DLA-1422-1
linuxsourcestretch4.9.110-1
linuxsource(unstable)4.16.16-1
linux-4.9sourcejessie4.9.110-1~deb8u1DLA-1423-1

Notes

Fixed by: https://git.kernel.org/linus/3c9fa24ca7c9c47605672916491f79e8ccacb9e6

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