CVE-2015-7513

Description

arch/x86/kvm/x86.c in the Linux kernel before 4.4 does not reset the PIT counter values during state restoration, which allows guest OS users to cause a denial of service (divide-by-zero error and host OS crash) via a zero value, related to the kvm_vm_ioctl_set_pit and kvm_vm_ioctl_set_pit2 functions.

References

http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=0185604c2d82c560dab2f2933a18f797e74ab5a8

http://lists.fedoraproject.org/pipermail/package-announce/2016-February/176484.html

http://lists.fedoraproject.org/pipermail/package-announce/2016-January/175792.html

http://lists.fedoraproject.org/pipermail/package-announce/2016-January/176194.html

http://www.debian.org/security/2016/dsa-3434

http://www.openwall.com/lists/oss-security/2016/01/07/2

http://www.securityfocus.com/bid/79901

http://www.securitytracker.com/id/1034602

http://www.ubuntu.com/usn/USN-2886-1

http://www.ubuntu.com/usn/USN-2887-1

http://www.ubuntu.com/usn/USN-2887-2

http://www.ubuntu.com/usn/USN-2888-1

http://www.ubuntu.com/usn/USN-2889-1

http://www.ubuntu.com/usn/USN-2889-2

http://www.ubuntu.com/usn/USN-2890-1

http://www.ubuntu.com/usn/USN-2890-2

http://www.ubuntu.com/usn/USN-2890-3

https://bugzilla.redhat.com/show_bug.cgi?id=1284847

https://github.com/torvalds/linux/commit/0185604c2d82c560dab2f2933a18f797e74ab5a8

Details

Risk Information

CVSS v2.0

CVSS v3.0