CVE-2012-2137 Information

Description

Buffer overflow in virt/kvm/irq_comm.c in the KVM subsystem in the Linux kernel before 3.2.24 allows local users to cause a denial of service (crash) and possibly execute arbitrary code via vectors related to Message Signaled Interrupts (MSI) irq routing entries and an incorrect check by the setup_routing_entry function before invoking the kvm_set_irq function.

Reference

http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commitdiff;h=f2ebd422f71cda9c791f76f85d2ca102ae34a1ed http://lists.opensuse.org/opensuse-security-announce/2013-06/msg00005.html http://marc.info/?l=bugtraq&m=139447903326211&w=2 http://rhn.redhat.com/errata/RHSA-2012-0743.html http://secunia.com/advisories/50952 http://secunia.com/advisories/50961 http://ubuntu.5.n6.nabble.com/PATCH-Oneiric-CVE-2012-2137-KVM-Fix-buffer-overflow-in-kvm-set-irq-td4990566.html http://ubuntu.com/usn/usn-1529-1 http://ubuntu.com/usn/usn-1607-1 http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.2.24 http://www.securityfocus.com/bid/54063 http://www.ubuntu.com/usn/USN-1594-1 http://www.ubuntu.com/usn/USN-1606-1 http://www.ubuntu.com/usn/USN-1609-1 https://bugzilla.redhat.com/show_bug.cgi?id=816151