UBUNTU-CVE-2019-13565

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    UBUNTU-CVE-2019-13565

    Published: 26 Jul 2019Last Modified: 22 Apr 2026
    Upstream:
    CVE-2019-13565

    Summary:

    Details: An issue was discovered in OpenLDAP 2.x before 2.4.48. When using SASL authentication and session encryption, and relying on the SASL security layers in slapd access controls, it is possible to obtain access that would otherwise be denied via a simple bind for any identity covered in those ACLs. After the first SASL bind is completed, the sasl_ssf value is retained for all new non-SASL connections. Depending on the ACL configuration, this can affect different types of operations (searches, modifications, etc.). In other words, a successful authorization step completed by one user affects the authorization requirement for a different user.

    References: https://ubuntu.com/security/CVE-2019-13565, https://www.openldap.org/lists/openldap-announce/201907/msg00001.html, https://ubuntu.com/security/notices/USN-4078-1, https://ubuntu.com/security/notices/USN-4078-2, https://www.cve.org/CVERecord?id=CVE-2019-13565

    Affected packages

    Package

    Name: openldap

    Purl: pkg:deb/ubuntu/[email protected]+nmu2ubuntu8.5+esm1?arch=source&distro=trusty/esm

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -2.4.31-1+nmu2ubuntu8.5+esm1

    Affected versions

    2.4.31-1+nmu2ubuntu3
    2.4.31-1+nmu2ubuntu4
    2.4.31-1+nmu2ubuntu5
    2.4.31-1+nmu2ubuntu8
    2.4.31-1+nmu2ubuntu8.1
    2.4.31-1+nmu2ubuntu8.2
    2.4.31-1+nmu2ubuntu8.3
    2.4.31-1+nmu2ubuntu8.4
    2.4.31-1+nmu2ubuntu8.5

    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