Bug 2230708 (TRIAGE-CVE-2023-39976)

Summary:	TRIAGE-CVE-2023-39976 libqb: Buffer overflow in log_blackbox.c
Product:	[Other] Security Response	Reporter:	Pedro Sampaio <psampaio>
Component:	vulnerability	Assignee:	Nobody <nobody>
Status:	NEW ---	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	CC:	ccaulfie, cluster-maint, jfriesse, kgaillot
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:	libqb 2.0.8	Doc Type:	If docs needed, set a value
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:		Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:
Bug Depends On:	2230709, 2230711, 2230712
Bug Blocks:	2230710

Description Pedro Sampaio 2023-08-09 20:36:22 UTC

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

References:

https://github.com/ClusterLabs/libqb/pull/490
https://github.com/ClusterLabs/libqb/commit/1bbaa929b77113532785c408dd1b41cd0521ffc8
https://github.com/ClusterLabs/libqb/compare/v2.0.7...v2.0.8

Comment 1 Pedro Sampaio 2023-08-09 20:36:38 UTC

Created libqb tracking bugs for this issue:

Affects: fedora-all [bug 2230709]