What’s Vulnerable › Vulnerabilities

CVE-2014-3144

• Severity: medium (CVSS 4.9 v2.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.6% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2014-05-11 · updated 2026-06-17
• Weakness: CWE-190

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.

Affected products

• Canonical Ubuntu Linux: 10.04, 12.04, 13.10
• Debian Linux: 7.0
• Linux kernel: through 3.14.3
• Oracle Corporation Oracle Linux: 6, 7

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.html
• http://secunia.com/advisories/58990
• http://secunia.com/advisories/59311
• http://secunia.com/advisories/59597
• http://secunia.com/advisories/60613
• http://www.debian.org/security/2014/dsa-2949
• http://www.openwall.com/lists/oss-security/2014/05/09/6
• http://www.securityfocus.com/bid/67309
• http://www.ubuntu.com/usn/USN-2251-1
• http://www.ubuntu.com/usn/USN-2252-1
• http://www.ubuntu.com/usn/USN-2259-1

Get alerted when CVE-2014-3144 or the next vulnerability affects your stack