UBUNTU-CVE-2012-6540

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    UBUNTU-CVE-2012-6540

    Published: 7 Mar 2013Last Modified: 4 Feb 2026
    Upstream:
    CVE-2012-6540
    Aliases:
    USN-1599-1
    USN-1610-1
    USN-1648-1

    Summary:

    Details: The do_ip_vs_get_ctl function in net/netfilter/ipvs/ip_vs_ctl.c in the Linux kernel before 3.6 does not initialize a certain structure for IP_VS_SO_GET_TIMEOUT commands, which allows local users to obtain sensitive information from kernel stack memory via a crafted application.

    References: https://ubuntu.com/security/CVE-2012-6540, http://www.openwall.com/lists/oss-security/2013/03/07, http://www.openwall.com/lists/oss-security/2013/03/07/2, https://ubuntu.com/security/notices/USN-1648-1, https://ubuntu.com/security/notices/USN-1649-1, https://ubuntu.com/security/notices/USN-1652-1, https://ubuntu.com/security/notices/USN-1610-1, https://ubuntu.com/security/notices/USN-1599-1, https://ubuntu.com/security/notices/USN-1792-1, https://ubuntu.com/security/notices/USN-1798-1, https://www.cve.org/CVERecord?id=CVE-2012-6540

    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