UBUNTU-CVE-2012-6657

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    UBUNTU-CVE-2012-6657

    Published: 28 Sept 2014Last Modified: 4 Feb 2026
    Upstream:
    CVE-2012-6657
    Aliases:
    USN-1644-1
    USN-1645-1
    USN-1899-1

    Summary:

    Details: The sock_setsockopt function in net/core/sock.c in the Linux kernel before 3.5.7 does not ensure that a keepalive action is associated with a stream socket, which allows local users to cause a denial of service (system crash) by leveraging the ability to create a raw socket.

    References: https://ubuntu.com/security/CVE-2012-6657, https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=3e10986d1d698140747fcfc2761ec9cb64c1d582, https://ubuntu.com/security/notices/USN-1900-1, https://ubuntu.com/security/notices/USN-1645-1, https://ubuntu.com/security/notices/USN-1644-1, https://ubuntu.com/security/notices/USN-1899-1, https://www.cve.org/CVERecord?id=CVE-2012-6657

    Affected packages

    Package

    Name: linux

    Purl: pkg:deb/ubuntu/[email protected]?arch=source&distro=trusty

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -3.11.0-12.19

    Affected versions

    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