Bug 1956525

Summary: libxml2: NULL pointer dereference in valid.c in xmlValidBuildAContentModel
Product: [Other] Security Response Reporter: Pedro Sampaio <psampaio>
Component: vulnerabilityAssignee: Red Hat Product Security <security-response-team>
Status: CLOSED DUPLICATE QA Contact:
Severity: medium Docs Contact:
Priority: medium    
Version: unspecifiedCC: 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   
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Last Closed: 2021-05-05 11:23:34 UTC Type: ---
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:
Bug Depends On: 1956524, 1956526, 1956527    
Bug Blocks: 1956531    

Description Pedro Sampaio 2021-05-03 20:35:45 UTC 
There is a NULL Pointer Dereference in libxml2 in xmlValidBuildAContentModel that can be triggered by different payload.

References:

https://gitlab.gnome.org/GNOME/libxml2/-/issues/244
Comment 1 Pedro Sampaio 2021-05-03 20:36:22 UTC 
Created libxml2 tracking bugs for this issue:

Affects: fedora-all [bug 1956526]


Created mingw-libxml2 tracking bugs for this issue:

Affects: fedora-all [bug 1956527]
Comment 2 Cedric Buissart 2021-05-05 11:23:34 UTC 

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