UBUNTU-CVE-2015-2694

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    UBUNTU-CVE-2015-2694

    Published: 25 May 2015Last Modified: 22 Apr 2026
    Upstream:
    CVE-2015-2694
    Aliases:
    USN-2810-1

    Summary:

    Details: The kdcpreauth modules in MIT Kerberos 5 (aka krb5) 1.12.x and 1.13.x before 1.13.2 do not properly track whether a client's request has been validated, which allows remote attackers to bypass an intended preauthentication requirement by providing (1) zero bytes of data or (2) an arbitrary realm name, related to plugins/preauth/otp/main.c and plugins/preauth/pkinit/pkinit_srv.c.

    References: https://ubuntu.com/security/CVE-2015-2694, https://ubuntu.com/security/notices/USN-2810-1, https://www.cve.org/CVERecord?id=CVE-2015-2694

    Affected packages

    Package

    Name: krb5

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

    Affected ranges

    Type: ECOSYSTEM

    Events:

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

    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