Vulnerabilities / CVE-2023-39976

critical

CVE-2023-39976

libqb: Buffer overflow in log_blackbox.c

Published Modified CWE 120
In the Trivy database since at least 24 Oct 2026, 07:11 UTCWhen it arrived before that build is not recorded.

Severity by source

NVD9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Red Hat7.2CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

Trivy's own label is CRITICAL. Rated critical by NVD, Azure Linux. Rated lower by Amazon (high), Red Hat (medium), AlmaLinux (medium), Oracle (medium), Ubuntu (medium).

Description

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

Affected packages and fixed versions

SourcePackageFixed in
Azure Linux 3.0libqb0:2.0.8-1.azl3
alma 9libqb, libqb-devel2.0.6-4.el9_3
amazon linux 2023doxygen2man, doxygen2man-debuginfo, libqb and 3 more2.0.6-1.amzn2023.0.1
debian 11libqbno fix listed
debian 12libqbno fix listed
debian 13libqb2.0.8-1
debian 14libqb2.0.8-1
echolibqb2.0.8-1
Oracle Linux 9libqb2.0.6-4.el9_3
rapidfort amazon linux 2023doxygen2man, libqb, libqb-devel2.0.6-1.amzn2023.0.1
rapidfort debian 12libqb0:2.0.8-1
rapidfort debian 13libqb0:2.0.8-1
Show all 25 entries from 16 sources
SourcePackageFixed in
Azure Linux 3.0libqb0:2.0.8-1.azl3
alma 9libqb2.0.6-4.el9_3
alma 9libqb-devel2.0.6-4.el9_3
amazon linux 2023doxygen2man2.0.6-1.amzn2023.0.1
amazon linux 2023doxygen2man-debuginfo2.0.6-1.amzn2023.0.1
amazon linux 2023libqb2.0.6-1.amzn2023.0.1
amazon linux 2023libqb-debuginfo2.0.6-1.amzn2023.0.1
amazon linux 2023libqb-debugsource2.0.6-1.amzn2023.0.1
amazon linux 2023libqb-devel2.0.6-1.amzn2023.0.1
debian 11libqbno fix listed
debian 12libqbno fix listed
debian 13libqb2.0.8-1
debian 14libqb2.0.8-1
echolibqb2.0.8-1
Oracle Linux 9libqb2.0.6-4.el9_3
rapidfort amazon linux 2023doxygen2man2.0.6-1.amzn2023.0.1
rapidfort amazon linux 2023libqb2.0.6-1.amzn2023.0.1
rapidfort amazon linux 2023libqb-devel2.0.6-1.amzn2023.0.1
rapidfort debian 12libqb0:2.0.8-1
rapidfort debian 13libqb0:2.0.8-1
rapidfort Oracle Linux 9libqb0:2.0.6-4.el9_3
Red Hatlibqbno fix listed
Red Hatlibqb-develno fix listed
ubuntu 22.04libqb2.0.4-1ubuntu0.2
ubuntu 23.04libqb2.0.6-2ubuntu0.1

References

All 13 references

Vulnerability data compiled from the Trivy vulnerability database (trivy-db, Aqua Security, Apache License 2.0), which aggregates third-party advisories. CVE records are published by The MITRE Corporation under the CVE Terms of Use; CVE is a trademark of MITRE. This product uses data from the NVD API but is not endorsed or certified by the NVD. Severity, titles and advisory data from the GitHub Advisory Database (CC BY 4.0), Red Hat security data (CC BY 4.0) and the other sources linked on each entry. Entries may be summarised or re-formatted; the linked original is the authoritative record.