CVE-2013-4129 Information

Description

The bridge multicast implementation in the Linux kernel through 3.10.3 does not check whether a certain timer is armed before modifying the timeout value of that timer which allows local users to cause a denial of service (BUG and system crash) via vectors involving the shutdown of a KVM virtual machine related to net/bridge/br_mdb.c and net/bridge/br_multicast.c.

Reference

http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=c7e8e8a8f7a70b343ca1e0f90a31e35ab2d16de1 http://www.openwall.com/lists/oss-security/2013/07/16/1 http://www.securityfocus.com/bid/61193 https://bugzilla.redhat.com/show_bug.cgi?id=984743 https://exchange.xforce.ibmcloud.com/vulnerabilities/85763 https://github.com/torvalds/linux/commit/c7e8e8a8f7a70b343ca1e0f90a31e35ab2d16de1