UBUNTU-CVE-2023-39976

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    UBUNTU-CVE-2023-39976

    Published: 8 Aug 2023Last Modified: 22 Apr 2026
    Upstream:
    CVE-2023-39976
    Aliases:
    USN-6308-1

    Summary:

    Details: log_blackbox.c in libqb before 2.0.8 allows a buffer overflow via long log messages because the header size is not considered.

    References: https://ubuntu.com/security/CVE-2023-39976, https://github.com/ClusterLabs/libqb/pull/490, https://github.com/ClusterLabs/libqb/commit/1bbaa929b77113532785c408dd1b41cd0521ffc8, https://github.com/ClusterLabs/libqb/compare/v2.0.7...v2.0.8, https://ubuntu.com/security/notices/USN-6308-1, https://www.cve.org/CVERecord?id=CVE-2023-39976

    Affected packages

    Package

    Name: libqb

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

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -2.0.4-1ubuntu0.2

    Affected versions

    2.0.3-1build1
    2.0.4-1
    2.0.4-1build1
    2.0.4-1ubuntu0.1

    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
    UBUNTU-CVE-2023-39976 | CVE-DB