CWE
119 120
Advisory Published
Updated

CVE-2023-39976: Buffer Overflow

First published: Tue Aug 08 2023(Updated: )

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

Credit: cve@mitre.org cve@mitre.org cve@mitre.org

Affected SoftwareAffected VersionHow to fix
ubuntu/libqb<2.0.4-1ubuntu0.2
2.0.4-1ubuntu0.2
ubuntu/libqb<2.0.6-2ubuntu0.1
2.0.6-2ubuntu0.1
Clusterlabs Libqb<2.0.8
<2.0.8
redhat/libqb<2.0.8
2.0.8
debian/libqb<=2.0.3-1<=2.0.6-2
1.0.5-1
2.0.8-1

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Parent vulnerabilities

(Appears in the following advisories)

Frequently Asked Questions

  • What is CVE-2023-39976?

    CVE-2023-39976 is a vulnerability in libqb before 2.0.8 that allows a buffer overflow via long log messages.

  • What is the severity of CVE-2023-39976?

    CVE-2023-39976 has a severity score of 9.8 (Critical).

  • How does CVE-2023-39976 affect Clusterlabs Libqb?

    CVE-2023-39976 affects Clusterlabs Libqb versions up to and excluding 2.0.8.

  • How does CVE-2023-39976 affect Ubuntu libqb?

    CVE-2023-39976 affects Ubuntu libqb versions 2.0.4-1ubuntu0.2 and 2.0.6-2ubuntu0.1.

  • How can I fix CVE-2023-39976?

    To fix CVE-2023-39976, update libqb to version 2.0.8 or later.

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