CVE-2014-8480

NameCVE-2014-8480
DescriptionThe instruction decoder in arch/x86/kvm/emulate.c in the KVM subsystem in the Linux kernel before 3.18-rc2 lacks intended decoder-table flags for certain RIP-relative instructions, which allows guest OS users to cause a denial of service (NULL pointer dereference and host OS crash) via a crafted application.
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)

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
bookworm6.0.10-2fixed
sid6.0.12-1fixed

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
linuxsource(unstable)(not affected)
linux-2.6source(unstable)(not affected)

Notes

- linux <not-affected> (Introduced in 3.17)
- linux-2.6 <not-affected> (Introduced in 3.17)
The NULL pointer dereference was introduced in https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=41061cdb98a0bec464278b4db8e894a3121671f5 (v3.17-rc1)
Fix: https://git.kernel.org/cgit/virt/kvm/kvm.git/commit/?id=3f6f1480d86bf9fc16c160d803ab1d006e3058d5

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