UBUNTU-CVE-2011-3638

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    UBUNTU-CVE-2011-3638

    Published: 28 Oct 2011Last Modified: 4 Feb 2026
    Upstream:
    CVE-2011-3638

    Summary:

    Details: fs/ext4/extents.c in the Linux kernel before 3.0 does not mark a modified extent as dirty in certain cases of extent splitting, which allows local users to cause a denial of service (system crash) via vectors involving ext4 umount and mount operations.

    References: https://ubuntu.com/security/CVE-2011-3638, https://ubuntu.com/security/notices/USN-1294-1, https://ubuntu.com/security/notices/USN-1299-1, https://ubuntu.com/security/notices/USN-1311-1, https://www.cve.org/CVERecord?id=CVE-2011-3638

    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