Bug 1872572

Summary: xorg-x11-server: integer overflow in init_om() can lead to double-free
Product: [Other] Security Response Reporter: Doran Moppert <dmoppert>
Component: vulnerabilityAssignee: Red Hat Product Security <security-response-team>
Status: CLOSED DUPLICATE QA Contact:
Severity: high Docs Contact:
Priority: high    
Version: unspecifiedCC: ajax, bskeggs, caillon+fedoraproject, jglisse, john.j5live, ofourdan, rhughes, rstrode, sandmann, xgl-maint
Target Milestone: ---Keywords: Security
Target Release: ---   
Hardware: All   
OS: Linux   
Whiteboard:
Fixed In Version: xorg-x11-server 1.20.9 Doc Type: If docs needed, set a value
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2020-08-27 00:45:22 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: 1872573, 1872576, 1872577, 1872578, 1872579    
Bug Blocks: 1862265    

Description Doran Moppert 2020-08-26 06:33:58 UTC 
An integer overflow in init_om(), used in LibX11 for locale handling, can lead to a double-free.

Upstream advisory:

https://lists.x.org/archives/xorg-announce/2020-August/003056.html

Upstream patch:

https://gitlab.freedesktop.org/xorg/lib/libx11/-/commit/acdaaadcb3d85c61fd43669fc5dddf0f8c3f911d
Comment 1 Doran Moppert 2020-08-26 06:34:23 UTC 
Created xorg-x11-server tracking bugs for this issue:

Affects: fedora-all [bug 1872573]
Comment 5 Doran Moppert 2020-08-27 00:46:11 UTC 

*** This bug has been marked as a duplicate of bug 1872473 ***