CVE-2014-3144 | BDVDB-2026-61495 Detail
Description#
The (1) BPF_S_ANC_NLATTR and (2) BPF_S_ANC_NLATTR_NEST extension implementations in the sk_run_filter function in net/core/filter.c in the Linux kernel through 3.14.3 do not check whether a certain length value is sufficiently large, which allows local users to cause a denial of service (integer underflow and system crash) via crafted BPF instructions. NOTE: the affected code was moved to the __skb_get_nlattr and __skb_get_nlattr_nest functions before the vulnerability was announced.
Impact#
No impact statement in the source data.
Weaknesses#
No weakness recorded in the source data.
References#
- http://www.openwall.com/lists/oss-security/2014/05/09/6
- http://www.ubuntu.com/usn/USN-2263-1
- http://www.debian.org/security/2014/dsa-2949
- http://www.ubuntu.com/usn/USN-2261-1
- http://www.ubuntu.com/usn/USN-2252-1
- http://linux.oracle.com/errata/ELSA-2014-3052.html
- http://secunia.com/advisories/58990
- http://secunia.com/advisories/60613
- http://www.ubuntu.com/usn/USN-2264-1
- https://github.com/torvalds/linux/commit/05ab8f2647e4221cbdb3856dd7d32bd5407316b3
- http://www.securityfocus.com/bid/67309
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=05ab8f2647e4221cbdb3856dd7d32bd5407316b3
- http://www.ubuntu.com/usn/USN-2262-1
- http://www.ubuntu.com/usn/USN-2259-1
- http://www.ubuntu.com/usn/USN-2251-1
Exploit#
No public exploit known
History#
- Version 1Record published in the CVE List.
- Version 2Most recent update recorded in the CVE List.