UBUNTU-CVE-2026-117548

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    UBUNTU-CVE-2026-117548

    Published: 29 Oct 2026Last Modified: 5 Nov 2026
    Upstream:
    CVE-2026-117548

    Summary:

    Details: A NULL pointer dereference flaw was found in 389-ds-base. This flaw occurs when a ModifyDN (rename) operation uses an attribute's schema alias name (such as "commonName") instead of its canonical name (such as "cn") as the new relative distinguished name. An authenticated attacker with the ModifyDN (rename) permission on the affected entry can use this flaw to crash the directory server, causing a denial of service.

    References: https://ubuntu.com/security/CVE-2026-117548, https://www.cve.org/CVERecord?id=CVE-2026-117548, https://access.redhat.com/security/cve/CVE-2026-117548, https://bugzilla.redhat.com/show_bug.cgi?id=2561778

    Affected packages

    Package

    Name: 389-ds-base

    Purl: pkg:deb/ubuntu/389-ds-base?arch=source&distro=esm-apps%2Fxenial

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -None

    Affected versions

    1.3.3.12-1build1
    1.3.3.13-1
    1.3.4.5-2
    1.3.4.8-1
    1.3.4.8-3
    1.3.4.8-3ubuntu1
    1.3.4.8-4
    1.3.4.9-1
    1.3.4.9-1ubuntu0.1~esm1

    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
    UBUNTU-CVE-2026-117548 | CVE-DB