CVE-2017-12154

NameCVE-2017-12154
DescriptionThe prepare_vmcs02 function in arch/x86/kvm/vmx.c in the Linux kernel through 4.13.3 does not ensure that the "CR8-load exiting" and "CR8-store exiting" L0 vmcs02 controls exist in cases where L1 omits the "use TPR shadow" vmcs12 control, which allows KVM L2 guest OS users to obtain read and write access to the hardware CR8 register.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, Mageia, GitHub advisories/code/issues, web search, more)
ReferencesDLA-1099-1, DSA-3981-1

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
linux (PTS)buster4.19.249-2fixed
buster (security)4.19.260-1fixed
bullseye5.10.140-1fixed
bullseye (security)5.10.149-2fixed
bookworm6.0.8-1fixed
sid6.0.10-1fixed

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
linuxsourcewheezy3.2.93-1DLA-1099-1
linuxsourcejessie3.16.43-2+deb8u5DSA-3981-1
linuxsourcestretch4.9.30-2+deb9u5DSA-3981-1
linuxsource(unstable)4.12.13-1

Notes

Fixed by: https://git.kernel.org/linus/51aa68e7d57e3217192d88ce90fd5b8ef29ec94f (v4.14-rc1)
https://www.spinics.net/lists/kvm/msg155414.html

Search for package or bug name: Reporting problems