CVE-2013-4470

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    CVE-2013-4470

    Published: 4 Nov 2013Last Modified: 16 Apr 2026

    Summary:

    Details: The Linux kernel before 3.12, when UDP Fragmentation Offload (UFO) is enabled, does not properly initialize certain data structures, which allows local users to cause a denial of service (memory corruption and system crash) or possibly gain privileges via a crafted application that uses the UDP_CORK option in a setsockopt system call and sends both short and long packets, related to the ip_ufo_append_data function in net/ipv4/ip_output.c and the ip6_ufo_append_data function in net/ipv6/ip6_output.c.

    References: http://rhn.redhat.com/errata/RHSA-2013-1801.html, http://rhn.redhat.com/errata/RHSA-2014-0100.html, http://rhn.redhat.com/errata/RHSA-2014-0284.html, http://www.ubuntu.com/usn/USN-2040-1, http://www.ubuntu.com/usn/USN-2042-1, http://www.ubuntu.com/usn/USN-2043-1, http://www.ubuntu.com/usn/USN-2044-1, http://www.ubuntu.com/usn/USN-2046-1, http://www.ubuntu.com/usn/USN-2049-1, http://www.ubuntu.com/usn/USN-2050-1, http://www.ubuntu.com/usn/USN-2066-1, http://www.ubuntu.com/usn/USN-2067-1, http://www.ubuntu.com/usn/USN-2069-1, http://www.ubuntu.com/usn/USN-2073-1, https://github.com/torvalds/linux/commit/c547dbf55d5f8cf615ccc0e7265e98db27d3fb8b, https://github.com/torvalds/linux/commit/e93b7d748be887cd7639b113ba7d7ef792a7efb9, http://www.openwall.com/lists/oss-security/2013/10/25/5, https://bugzilla.redhat.com/show_bug.cgi?id=1023477, https://github.com/torvalds/linux/commit/c547dbf55d5f8cf615ccc0e7265e98db27d3fb8b, https://github.com/torvalds/linux/commit/e93b7d748be887cd7639b113ba7d7ef792a7efb9, https://www.kernel.org/pub/linux/kernel/v3.x/patch-3.12.bz2, http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=c547dbf55d5f8cf615ccc0e7265e98db27d3fb8b, http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=e93b7d748be887cd7639b113ba7d7ef792a7efb9, http://lists.opensuse.org/opensuse-security-announce/2014-03/msg00026.html, http://www.securityfocus.com/bid/63359

    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