Bugzilla – Bug 829446
VUL-0: kernel: CVE-2013-4125: kernel panic possible on same layer-2 network with IPv6 RA
Last modified: 2013-10-04 16:45:01 UTC
bugbot adjusting priority
public via oss-sec: Date: Mon, 15 Jul 2013 18:24:17 +0200 From: Petr Matousek To: oss-security If two router advertisment speaker announce seperate default gateways with infinite timeout the kernel currently packs these routes together into an ecmp route set. If one of the RA speaker now changes the advertised expiration to a lower value and a third route with infinite timeout pops up we end up with a BUG_ON. Remote attacker could use this flaw to crash the system. Fixed by: http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=307f2fb95e9b96b3577916e73d92e104f8f26494 Introduced by: http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=51ebd3181572af8d5076808dab2682d800f6da5d Introduced in upstream version: v3.7-rc1 Acknowledgements: Red Hat would like to thank Hannes Frederic Sowa for reporting this issue. -- Petr Matousek / Red Hat Security Response Team
CVE-2013-4125
perl bin/addnote CVE-2013-4125 "The issue was introduced in Linux kernel 3.7 development, so it does not affect SUSE Linux Enterprise 11 or older products. It only affects openSUSE 12.3 which will receive fixes."
The (In reply to comment #3) > Fixed by: > http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=307f2fb95e9b96b3577916e73d92e104f8f26494 > > Introduced by: > http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=51ebd3181572af8d5076808dab2682d800f6da5d > > Introduced in upstream version: > v3.7-rc1 no, 51ebd3181572af8d5076808dab2682d800f6da5d has actually been introduced in v3.8-rc1, so no SUSE products are affected, not even openSUSE 12.3
so nothing todo