CVE-2012-4565 Information

Description

The tcp_illinois_info function in net/ipv4/tcp_illinois.c in the Linux kernel before 3.4.19 when the net.ipv4.tcp_congestion_control illinois setting is enabled allows local users to cause a denial of service (divide-by-zero error and OOPS) by reading TCP stats.

Reference

http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=8f363b77ee4fbf7c3bbcf5ec2c5ca482d396d664 http://lists.fedoraproject.org/pipermail/package-announce/2012-November/091110.html http://rhn.redhat.com/errata/RHSA-2012-1580.html http://secunia.com/advisories/51409 http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.4.19 http://www.openwall.com/lists/oss-security/2012/10/31/5 http://www.securityfocus.com/bid/56346 http://www.ubuntu.com/usn/USN-1644-1 http://www.ubuntu.com/usn/USN-1645-1 http://www.ubuntu.com/usn/USN-1646-1 http://www.ubuntu.com/usn/USN-1647-1 http://www.ubuntu.com/usn/USN-1648-1 http://www.ubuntu.com/usn/USN-1649-1 http://www.ubuntu.com/usn/USN-1650-1 http://www.ubuntu.com/usn/USN-1651-1 http://www.ubuntu.com/usn/USN-1652-1 https://bugzilla.redhat.com/show_bug.cgi?id=871848 https://github.com/torvalds/linux/commit/8f363b77ee4fbf7c3bbcf5ec2c5ca482d396d664