Bug 1829002 (CVE-2020-11761)

Summary: CVE-2020-11761 OpenEXR: out-of-bounds read during Huffman uncompression
Product: [Other] Security Response Reporter: Guilherme de Almeida Suckevicz <gsuckevi>
Component: vulnerabilityAssignee: Red Hat Product Security <security-response-team>
Status: CLOSED ERRATA QA Contact:
Severity: medium Docs Contact:
Priority: medium    
Version: unspecifiedCC: jeischma, jridky, kwizart, manisandro, rdieter, rh-spice-bugs
Target Milestone: ---Keywords: Security
Target Release: ---   
Hardware: All   
OS: Linux   
Whiteboard:
Fixed In Version: OpenEXR 2.4.1 Doc Type: If docs needed, set a value
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2020-09-29 22:00:39 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: 1829003, 1829004, 1834459, 1834461, 1834462    
Bug Blocks: 1829017    

Description Guilherme de Almeida Suckevicz 2020-04-28 17:22:56 UTC 
An issue was discovered in OpenEXR before 2.4.1. There is an out-of-bounds read during Huffman uncompression, as demonstrated by FastHufDecoder::refill in ImfFastHuf.cpp.

References:
https://bugs.chromium.org/p/project-zero/issues/detail?id=1987
https://github.com/AcademySoftwareFoundation/openexr/blob/master/CHANGES.md#version-241-february-11-2020
Comment 1 Guilherme de Almeida Suckevicz 2020-04-28 17:23:17 UTC 
Created OpenEXR tracking bugs for this issue:

Affects: fedora-all [bug 1829004]


Created mingw-OpenEXR tracking bugs for this issue:

Affects: fedora-all [bug 1829003]
Comment 3 Todd Cullum 2020-05-11 18:38:50 UTC 
OpenEXR versions shipped with Red Hat Enterprise Linux 7 and 8 are affected by this flaw.
Comment 5 Todd Cullum 2020-05-11 18:51:02 UTC 
This commit appears to be part of the upstream patch: https://github.com/AcademySoftwareFoundation/openexr/commit/b1c34c496b62117115b1089b18a44e0031800a09#diff-bc045e5e1fe1f254dd90bd6b7a89cd13
Comment 8 errata-xmlrpc 2020-09-29 20:50:35 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 7

Via RHSA-2020:4039 https://access.redhat.com/errata/RHSA-2020:4039
Comment 9 Product Security DevOps Team 2020-09-29 22:00:39 UTC 
This bug is now closed. Further updates for individual products will be reflected on the CVE page(s):

https://access.redhat.com/security/cve/cve-2020-11761