Detections
Analytics
CVE-2014-3144
medium
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.
References
http://www.ubuntu.com/usn/USN-2264-1
http://www.ubuntu.com/usn/USN-2263-1
http://www.ubuntu.com/usn/USN-2262-1
http://www.ubuntu.com/usn/USN-2261-1
http://www.ubuntu.com/usn/USN-2259-1
http://www.ubuntu.com/usn/USN-2252-1
http://www.ubuntu.com/usn/USN-2251-1
http://www.securityfocus.com/bid/67309
http://www.openwall.com/lists/oss-security/2014/05/09/6