Bug 1828999 (CVE-2020-11762)

Summary: CVE-2020-11762 OpenEXR: out-of-bounds read and write in DwaCompressor::uncompress in ImfDwaCompressor.cpp
Product: [Other] Security Response Reporter: Guilherme de Almeida Suckevicz <gsuckevi>
Component: vulnerabilityAssignee: Red Hat Product Security <security-response-team>
Status: CLOSED WONTFIX 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: 2021-11-01 17:10:52 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: 1829000, 1829001, 1833576, 1833577    
Bug Blocks: 1829017    

Description Guilherme de Almeida Suckevicz 2020-04-28 17:19:39 UTC
An issue was discovered in OpenEXR before 2.4.1. There is an out-of-bounds read and write in DwaCompressor::uncompress in ImfDwaCompressor.cpp when handling the UNKNOWN compression case.

Reference:
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 17:20:00 UTC
Created OpenEXR tracking bugs for this issue:

Affects: fedora-all [bug 1829000]


Created mingw-OpenEXR tracking bugs for this issue:

Affects: fedora-all [bug 1829001]

Comment 2 Todd Cullum 2020-05-08 22:55:26 UTC
Mitigation:

Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.

Comment 3 Todd Cullum 2020-05-08 22:57:14 UTC
Statement:

This issue does not affect versions of OpenEXR shipped with Red Enterprise Linux 7 or earlier as the vulnerable code was not yet implemented.

Comment 6 Todd Cullum 2020-05-12 19:35:34 UTC
This flaw seems to be the same underlying issue as CVE-2020-11761.