UBUNTU-CVE-2012-1090

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    UBUNTU-CVE-2012-1090

    Published: 28 Feb 2012Last Modified: 4 Feb 2026
    Upstream:
    CVE-2012-1090
    Aliases:
    USN-1405-1
    USN-1425-1
    USN-1426-1

    Summary:

    Details: The cifs_lookup function in fs/cifs/dir.c in the Linux kernel before 3.2.10 allows local users to cause a denial of service (OOPS) via attempted access to a special file, as demonstrated by a FIFO. "The cifs code will attempt to open files on lookup under certain circumstances. What happens though if we find that the file we opened was actually a FIFO or other special file? Currently, the open filehandle just ends up being leaked leading to a dentry refcount mismatch and oops on umount."

    References: https://ubuntu.com/security/CVE-2012-1090, http://thread.gmane.org/gmane.linux.kernel.cifs/5526, http://www.openwall.com/lists/oss-security/2012/02/28/3, https://ubuntu.com/security/notices/USN-1405-1, https://ubuntu.com/security/notices/USN-1425-1, https://ubuntu.com/security/notices/USN-1426-1, https://ubuntu.com/security/notices/USN-1431-1, https://ubuntu.com/security/notices/USN-1433-1, https://ubuntu.com/security/notices/USN-1432-1, https://ubuntu.com/security/notices/USN-1440-1, https://ubuntu.com/security/notices/USN-1446-1, https://ubuntu.com/security/notices/USN-1458-1, https://www.cve.org/CVERecord?id=CVE-2012-1090

    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