UBUNTU-CVE-2012-5374

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    UBUNTU-CVE-2012-5374

    Published: 18 Feb 2013Last Modified: 4 Feb 2026
    Upstream:
    CVE-2012-5374
    Aliases:
    USN-1944-1
    USN-1945-1
    USN-1946-1

    Summary:

    Details: The CRC32C feature in the Btrfs implementation in the Linux kernel before 3.8-rc1 allows local users to cause a denial of service (extended runtime of kernel code) by creating many different files whose names are associated with the same CRC32C hash value.

    References: https://ubuntu.com/security/CVE-2012-5374, http://www.openwall.com/lists/oss-security/2012/12/13/20, http://crypto.junod.info/2012/12/13/hash-dos-and-btrfs/, https://ubuntu.com/security/notices/USN-1944-1, https://ubuntu.com/security/notices/USN-1945-1, https://ubuntu.com/security/notices/USN-1947-1, https://ubuntu.com/security/notices/USN-1946-1, https://ubuntu.com/security/notices/USN-2017-1, https://ubuntu.com/security/notices/USN-2018-1, https://www.cve.org/CVERecord?id=CVE-2012-5374

    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
    UBUNTU-CVE-2012-5374 | CVE-DB