Bug 1956528

Summary:	libxml2: NULL pointer dereference in valid.c in xmlSnprintfElementContent
Product:	[Other] Security Response	Reporter:	Pedro Sampaio <psampaio>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED DUPLICATE	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	CC:	csutherl, dking, erik-fedora, fedora, gzaronik, igor.raits, jclere, jorton, jwon, krathod, ktietz, mturk, ohudlick, pjindal, rh-spice-bugs, rjones, szappis, tkorbar, veillard
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	If docs needed, set a value
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2021-05-05 11:24:00 UTC	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:	1956524, 1956529, 1956530
Bug Blocks:	1956531

Description Pedro Sampaio 2021-05-03 20:38:34 UTC

There is a NULL Pointer Dereference in libxml2 in xmlSnprintfElementContent__internal_alias that can lead to segmentation fault and cause denial-of-service.

References:

https://gitlab.gnome.org/GNOME/libxml2/-/issues/245

Comment 1 Pedro Sampaio 2021-05-03 20:40:34 UTC

Created libxml2 tracking bugs for this issue:

Affects: fedora-all [bug 1956529]


Created mingw-libxml2 tracking bugs for this issue:

Affects: fedora-all [bug 1956530]

Comment 2 Cedric Buissart 2021-05-05 11:24:00 UTC


*** This bug has been marked as a duplicate of bug 1956522 ***