UBUNTU-CVE-2014-9421

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    UBUNTU-CVE-2014-9421

    Published: 3 Feb 2015Last Modified: 22 Apr 2026
    Upstream:
    CVE-2014-9421
    Aliases:
    USN-2498-1

    Summary:

    Details: The auth_gssapi_unwrap_data function in lib/rpc/auth_gssapi_misc.c in MIT Kerberos 5 (aka krb5) through 1.11.5, 1.12.x through 1.12.2, and 1.13.x before 1.13.1 does not properly handle partial XDR deserialization, which allows remote authenticated users to cause a denial of service (use-after-free and double free, and daemon crash) or possibly execute arbitrary code via malformed XDR data, as demonstrated by data sent to kadmind.

    References: https://ubuntu.com/security/CVE-2014-9421, http://web.mit.edu/Kerberos/advisories/MITKRB5-SA-2015-001.txt, https://ubuntu.com/security/notices/USN-2498-1, https://www.cve.org/CVERecord?id=CVE-2014-9421

    Affected packages

    Package

    Name: krb5

    Purl: pkg:deb/ubuntu/[email protected]+dfsg-2ubuntu5.1?arch=source&distro=trusty

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -1.12+dfsg-2ubuntu5.1

    Affected versions

    1.10.1+dfsg-6.1ubuntu1

    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