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CVE-2023-39976

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Date: August 7, 2023

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

Language: C

Severity Score

9.8

Related Resources (7)

Url: https://github.com/ClusterLabs/libqb/commit/1bbaa929b77113532785c408dd1b41cd0521ffc8

Url: https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/KECNF7LFBPE57XSBT6EM7ACVMIBP63WH/

Url: https://nvd.nist.gov/vuln/detail/CVE-2023-39976

Url: https://github.com/ClusterLabs/libqb/compare/v2.0.7...v2.0.8

Url: https://github.com/ClusterLabs/libqb/pull/490

Url: https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/KECNF7LFBPE57XSBT6EM7ACVMIBP63WH/

Url: https://www.mend.io/vulnerability-database/CVE-2023-39976

Severity Score

9.8

Weakness Type (CWE)

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

CWE-120

Top Fix

Upgrade Version

Upgrade to version v2.0.8

CVSS v3.1

Base Score:	9.8
Attack Vector (AV):	NETWORK
Attack Complexity (AC):	LOW
Privileges Required (PR):	NONE
User Interaction (UI):	NONE
Scope (S):	UNCHANGED
Confidentiality (C):	HIGH
Integrity (I):	HIGH
Availability (A):	HIGH

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