DEBIAN-CVE-2026-18453

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    DEBIAN-CVE-2026-18453

    Published: 7 Sept 2026Last Modified: 10 Sept 2026
    Upstream:
    CVE-2026-18453

    Summary:

    Details: A flaw was found in 389 Directory Server. A missing NULL pointer check in the paged results handling of op_shared_search allows an unauthenticated remote attacker to crash the LDAP server by sending a crafted sequence of search requests using the USE_ONE_BACKEND control, resulting in denial of service.

    References: https://security-tracker.debian.org/tracker/CVE-2026-18453

    Affected packages

    Package

    Name: 389-ds-base

    Purl: pkg:deb/debian/389-ds-base?arch=source&distro=bookworm

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -None

    Affected versions

    2.3.1+dfsg1-1
    2.3.1+dfsg1-1+deb12u1
    2.3.4+dfsg1-1
    2.3.4+dfsg1-1.1

    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
    DEBIAN-CVE-2026-18453 | CVE-DB