UBUNTU-CVE-2016-2167

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    UBUNTU-CVE-2016-2167

    Published: 5 May 2016Last Modified: 22 Apr 2026
    Upstream:
    CVE-2016-2167

    Summary:

    Details: The canonicalize_username function in svnserve/cyrus_auth.c in Apache Subversion before 1.8.16 and 1.9.x before 1.9.4, when Cyrus SASL authentication is used, allows remote attackers to authenticate and bypass intended access restrictions via a realm string that is a prefix of an expected repository realm string.

    References: https://ubuntu.com/security/CVE-2016-2167, https://subversion.apache.org/security/CVE-2016-2167-advisory.txt, https://ubuntu.com/security/notices/USN-3388-1, https://ubuntu.com/security/notices/USN-3388-2, https://www.cve.org/CVERecord?id=CVE-2016-2167

    Affected packages

    Package

    Name: subversion

    Purl: pkg:deb/ubuntu/[email protected]?arch=source&distro=trusty

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -1.8.8-1ubuntu3.3

    Affected versions

    1.7.9-1+nmu6ubuntu3
    1.7.13-2ubuntu1
    1.7.13-2ubuntu2
    1.7.13-2ubuntu3
    1.7.14-1ubuntu2

    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