CVE-2023-39976

—

CVSS 3.1

9.8 critical

EPSS

1%p66

Published

Aug 8, 2023 (Aug 8, 2023)

Modified

Jun 17, 2026

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.

Vendors: clusterlabs
Products: libqb
Weakness: CWE-120
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

NVD CVE.org GitHub PoCs EPSS (1.2%)

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