USN-6156-2

    Dashboard / Vulnerabilities / USN-6156-2

    USN-6156-2

    Published: 16 Jun 2023Last Modified: 22 Apr 2026

    Summary: sssd regression

    Details: USN-6156-1 fixed a vulnerability in SSSD. In certain environments, not all packages ended up being upgraded at the same time, resulting in authentication failures when the PAM module was being used. This update fixes the problem. We apologize for the inconvenience. Original advisory details: It was discovered that SSSD incorrrectly sanitized certificate data used in LDAP filters. When using this issue in combination with FreeIPA, a remote attacker could possibly use this issue to escalate privileges.

    References: https://ubuntu.com/security/notices/USN-6156-2, https://launchpad.net/bugs/2023598

    Affected packages

    Package

    Name: sssd

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

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -2.2.3-3ubuntu0.12

    Affected versions

    2.2.0-4ubuntu1
    2.2.2-1
    2.2.2-1ubuntu1
    2.2.3-1.1ubuntu1
    2.2.3-2
    2.2.3-3
    2.2.3-3ubuntu0.1
    2.2.3-3ubuntu0.2
    2.2.3-3ubuntu0.3
    2.2.3-3ubuntu0.4
    2.2.3-3ubuntu0.6
    2.2.3-3ubuntu0.7
    2.2.3-3ubuntu0.8
    2.2.3-3ubuntu0.9
    2.2.3-3ubuntu0.10
    2.2.3-3ubuntu0.11

    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
    USN-6156-2 | CVE-DB