CVE-2014-3144
4.9 Medium
CVSS2
Attack Vector
LOCAL
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
COMPLETE
AV:L/AC:L/Au:N/C:N/I:N/A:C
6.2 Medium
AI Score
Confidence
Low
0.001 Low
EPSS
Percentile
34.7%
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.
Affected configurations
References
git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=05ab8f2647e4221cbdb3856dd7d32bd5407316b3
linux.oracle.com/errata/ELSA-2014-3052.html
secunia.com/advisories/58990
secunia.com/advisories/59311
secunia.com/advisories/59597
secunia.com/advisories/60613
www.debian.org/security/2014/dsa-2949
www.openwall.com/lists/oss-security/2014/05/09/6
www.securityfocus.com/bid/67309
www.ubuntu.com/usn/USN-2251-1
www.ubuntu.com/usn/USN-2252-1
www.ubuntu.com/usn/USN-2259-1
www.ubuntu.com/usn/USN-2261-1
www.ubuntu.com/usn/USN-2262-1
www.ubuntu.com/usn/USN-2263-1
www.ubuntu.com/usn/USN-2264-1
github.com/torvalds/linux/commit/05ab8f2647e4221cbdb3856dd7d32bd5407316b3
Related
4.9 Medium
CVSS2
Attack Vector
LOCAL
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
COMPLETE
AV:L/AC:L/Au:N/C:N/I:N/A:C
6.2 Medium
AI Score
Confidence
Low
0.001 Low
EPSS
Percentile
34.7%