CVE-2014-3144
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…
Does this matter?
Lower severity and a low EPSS score (0.60%). Track it; it rarely justifies an emergency change on its own.
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.
- CVSS 2.0
- 4.9 MEDIUMAV:L/AC:L/Au:N/C:N/I:N/A:C
- EPSS
- 0.60% probability · 47th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-190
- Affected
- linux/linux kernel · debian/debian linux · canonical/ubuntu linux · oracle/linux
- Source
- secalert@redhat.com
References
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=05ab8f2647e4221cbdb3856dd7d32bd5407316b3
- http://linux.oracle.com/errata/ELSA-2014-3052.htmlThird Party Advisory
- http://secunia.com/advisories/58990Broken Link
- http://secunia.com/advisories/59311Not Applicable
- http://secunia.com/advisories/59597Broken Link
- http://secunia.com/advisories/60613Not Applicable
- http://www.debian.org/security/2014/dsa-2949Third Party Advisory
- http://www.openwall.com/lists/oss-security/2014/05/09/6Mailing List, Patch, Third Party Advisory
- http://www.securityfocus.com/bid/67309Third Party Advisory, VDB Entry
- http://www.ubuntu.com/usn/USN-2251-1Third Party Advisory
- http://www.ubuntu.com/usn/USN-2252-1Third Party Advisory
- http://www.ubuntu.com/usn/USN-2259-1Third Party Advisory
- http://www.ubuntu.com/usn/USN-2261-1Third Party Advisory
- http://www.ubuntu.com/usn/USN-2262-1Third Party Advisory
- http://www.ubuntu.com/usn/USN-2263-1Third Party Advisory
- http://www.ubuntu.com/usn/USN-2264-1Third Party Advisory
- https://github.com/torvalds/linux/commit/05ab8f2647e4221cbdb3856dd7d32bd5407316b3Exploit, Patch, Third Party Advisory
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=05ab8f2647e4221cbdb3856dd7d32bd5407316b3
- http://linux.oracle.com/errata/ELSA-2014-3052.htmlThird Party Advisory
- http://secunia.com/advisories/58990Broken Link
- http://secunia.com/advisories/59311Not Applicable
- http://secunia.com/advisories/59597Broken Link
- http://secunia.com/advisories/60613Not Applicable
- http://www.debian.org/security/2014/dsa-2949Third Party Advisory
- http://www.openwall.com/lists/oss-security/2014/05/09/6Mailing List, Patch, Third Party Advisory
- http://www.securityfocus.com/bid/67309Third Party Advisory, VDB Entry
- http://www.ubuntu.com/usn/USN-2251-1Third Party Advisory
- http://www.ubuntu.com/usn/USN-2252-1Third Party Advisory
- http://www.ubuntu.com/usn/USN-2259-1Third Party Advisory
- http://www.ubuntu.com/usn/USN-2261-1Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.