CVE-2013-4163

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    CVE-2013-4163

    Published: 29 Jul 2013Last Modified: 16 Apr 2026

    Summary:

    Details: The ip6_append_data_mtu function in net/ipv6/ip6_output.c in the IPv6 implementation in the Linux kernel through 3.10.3 does not properly maintain information about whether the IPV6_MTU setsockopt option had been specified, which allows local users to cause a denial of service (BUG and system crash) via a crafted application that uses the UDP_CORK option in a setsockopt system call.

    References: http://secunia.com/advisories/54148, http://www.ubuntu.com/usn/USN-1938-1, http://www.ubuntu.com/usn/USN-1941-1, http://www.ubuntu.com/usn/USN-1942-1, http://www.ubuntu.com/usn/USN-1943-1, http://www.ubuntu.com/usn/USN-1944-1, http://www.ubuntu.com/usn/USN-1945-1, http://www.ubuntu.com/usn/USN-1946-1, http://www.ubuntu.com/usn/USN-1947-1, https://github.com/torvalds/linux/commit/75a493e60ac4bbe2e977e7129d6d8cbb0dd236be, https://github.com/torvalds/linux/commit/75a493e60ac4bbe2e977e7129d6d8cbb0dd236be, https://bugzilla.redhat.com/show_bug.cgi?id=987633, http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=75a493e60ac4bbe2e977e7129d6d8cbb0dd236be, http://lists.opensuse.org/opensuse-security-announce/2013-09/msg00003.html, http://lists.opensuse.org/opensuse-security-announce/2013-09/msg00004.html, http://www.openwall.com/lists/oss-security/2013/07/23/10, http://www.securityfocus.com/bid/61412

    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-2013-4163 | CVE-DB