CVE-2016-3713

NameCVE-2016-3713
DescriptionThe msr_mtrr_valid function in arch/x86/kvm/mtrr.c in the Linux kernel before 4.6.1 supports MSR 0x2f8, which allows guest OS users to read or write to the kvm_arch_vcpu data structure, and consequently obtain sensitive information or cause a denial of service (system crash), via a crafted ioctl call.
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)
NVD severitymedium (attack range: local)

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
linux (PTS)wheezy3.2.78-1fixed
wheezy (security)3.2.96-3fixed
jessie3.16.51-2fixed
jessie (security)3.16.51-3+deb8u1fixed
stretch4.9.65-3fixed
stretch (security)4.9.65-3+deb9u2fixed
buster4.14.7-1fixed
sid4.14.13-1fixed

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
linuxsource(unstable)4.5.4-1medium
linuxsourcejessie(not affected)
linuxsourcewheezy(not affected)

Notes

[jessie] - linux <not-affected> (Introduced in v4.2-rc1)
[wheezy] - linux <not-affected> (Introduced in v4.2-rc1)
Introduced by: https://git.kernel.org/linus/910a6aae4e2e45855efc4a268e43eed2d8445575 (v4.2-rc1)
https://bugzilla.redhat.com/show_bug.cgi?id=1332139

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