UBUNTU-CVE-2012-0056

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    UBUNTU-CVE-2012-0056

    Published: 19 Jan 2012Last Modified: 4 Feb 2026
    Upstream:
    CVE-2012-0056

    Summary:

    Details: The mem_write function in the Linux kernel before 3.2.2, when ASLR is disabled, does not properly check permissions when writing to /proc/<pid>/mem, which allows local users to gain privileges by modifying process memory, as demonstrated by Mempodipper.

    References: https://ubuntu.com/security/CVE-2012-0056, http://www.openwall.com/lists/oss-security/2012/01/18/1, https://ubuntu.com/security/notices/USN-1336-1, https://ubuntu.com/security/notices/USN-1342-1, https://ubuntu.com/security/notices/USN-1364-1, https://www.cve.org/CVERecord?id=CVE-2012-0056

    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