CVE-2014-3144

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    CVE-2014-3144

    Published: 11 May 2014Last Modified: 10 Apr 2026

    Summary:

    Details: 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://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, http://www.ubuntu.com/usn/USN-2261-1, http://www.ubuntu.com/usn/USN-2262-1, http://www.ubuntu.com/usn/USN-2263-1, http://www.ubuntu.com/usn/USN-2264-1, https://github.com/torvalds/linux/commit/05ab8f2647e4221cbdb3856dd7d32bd5407316b3, http://www.openwall.com/lists/oss-security/2014/05/09/6, https://github.com/torvalds/linux/commit/05ab8f2647e4221cbdb3856dd7d32bd5407316b3, http://www.openwall.com/lists/oss-security/2014/05/09/6, https://github.com/torvalds/linux/commit/05ab8f2647e4221cbdb3856dd7d32bd5407316b3, http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=05ab8f2647e4221cbdb3856dd7d32bd5407316b3

    Affected packages

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High
    CVE-2014-3144 | CVE-DB