CVE-2023-39976 : log_blackbox.c in libqb before 2.0.8 allows a buffer overflow via long log messa

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

Published 2023-08-08 06:15:47

Updated 2023-08-24 03:15:08

Source MITRE

View at NVD, CVE.org

Vulnerability category: Overflow

Products affected by CVE-2023-39976

Clusterlabs » Libqb
Versions before (<) 2.0.8
cpe:2.3:a:clusterlabs:libqb:*:*:*:*:*:*:*:*
Matching versions

EPSS FAQ

0.11%

Probability of exploitation activity in the next 30 days EPSS Score History

~ 45 %

Percentile, the proportion of vulnerabilities that are scored at or less

Base Score	Base Severity	CVSS Vector	Exploitability Score	Impact Score	Score Source	First Seen
9.8	CRITICAL	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H	3.9	5.9	NIST
Attack Vector: Network Attack Complexity: Low Privileges Required: None User Interaction: None Scope: Unchanged Confidentiality: High Integrity: High Availability: High

CWE-120 Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')

The product copies an input buffer to an output buffer without verifying that the size of the input buffer is less than the size of the output buffer, leading to a buffer overflow.

Assigned by: nvd@nist.gov (Primary)

Jump to