oss-sec mailing list archives
Re: CVE Request -- Linux kernel: ipv6: BUG_ON in fib6_add_rt2node()
From: Kurt Seifried <kseifried () redhat com>
Date: Mon, 15 Jul 2013 10:53:31 -0600
-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 On 07/15/2013 10:24 AM, Petr Matousek wrote:
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.
Please use CVE-2013-4125 for this issue. - -- Kurt Seifried Red Hat Security Response Team (SRT) PGP: 0x5E267993 A90B F995 7350 148F 66BF 7554 160D 4553 5E26 7993 -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.13 (GNU/Linux) iQIcBAEBAgAGBQJR5CkLAAoJEBYNRVNeJnmTEnMQAIkV1aERL6D2GPTq5d8ePlt6 +SVUkkDJBn8q71jNC+1fvrkxtdmSgr2Ob+mLMQQucfisyRH6T8hn61nJW2Z4xM6q LcQvvBLXIZNAbdeYPGuOqbh07d+Ax4uzmDXbo8ubo6BWa9Q7i3ZEUWLumsTqB+Pt IOlGNCL5zldy2TAEzWigmJTFgeJfMEMUQI4IRmwbAIBHU8SFzrAVlUTP8VZT0MHt dU0LIavp/9xPkNARNYR0Bbw0Eqe6f1TlfCOD1A8Ah9tIA15obJD8zhQvooFQt0b9 rGEQvRtt+AQ7r7YM4TBLI1Y5az0icBLFf8j+BVmMd744n3jj4Df9r0xmebKmP7CM /DwuBlWhxDoIkIJ5Y0lGwZmwKUZyB3fTO4DojGgyPsRPGwzT9/VTI8G+i9JelW7b Mzjr090zcPzztbrn0X6PWvD8wSRHcf+Mg3rxP2KtLSfWrbWRt0cbmTJ+e8AmGhmY ZqrWapUxwMJ07RHjgmj39ZBndPAC8VCaxu0XyEw77+qpmic50s6hRCkXUKSZM1lL qcyBEXwgJHIP0ZG58WnaOZeku4iOHJpLqv3ph1AK6hDygKQxiGb9ErSJSr5f66ZK vLjm6rRKqeOLkOtjQsW+EnFiiFJOBx3yrMpobG0gKtZUeUmxC86I/HDnKhTaSbq7 jDatx2lHNYGyzqKXXgeS =l/xc -----END PGP SIGNATURE-----
Current thread:
- CVE Request -- Linux kernel: ipv6: BUG_ON in fib6_add_rt2node() Petr Matousek (Jul 15)
- Re: CVE Request -- Linux kernel: ipv6: BUG_ON in fib6_add_rt2node() Kurt Seifried (Jul 15)