UBUNTU-CVE-2012-6548

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    UBUNTU-CVE-2012-6548

    Published: 15 Mar 2013Last Modified: 4 Feb 2026
    Upstream:
    CVE-2012-6548
    Aliases:
    USN-1805-1
    USN-1808-1
    USN-1809-1

    Summary:

    Details: The udf_encode_fh function in fs/udf/namei.c in the Linux kernel before 3.6 does not initialize a certain structure member, which allows local users to obtain sensitive information from kernel heap memory via a crafted application.

    References: https://ubuntu.com/security/CVE-2012-6548, 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-1805-1, https://ubuntu.com/security/notices/USN-1808-1, https://ubuntu.com/security/notices/USN-1809-1, https://ubuntu.com/security/notices/USN-1811-1, https://ubuntu.com/security/notices/USN-1812-1, https://ubuntu.com/security/notices/USN-1813-1, https://ubuntu.com/security/notices/USN-1814-1, https://www.cve.org/CVERecord?id=CVE-2012-6548

    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