Bug 1828999 (CVE-2020-11762) - CVE-2020-11762 OpenEXR: out-of-bounds read and write in DwaCompressor::uncompress in ImfDwaCompressor.cpp
Summary: CVE-2020-11762 OpenEXR: out-of-bounds read and write in DwaCompressor::uncomp...
Keywords:
Status: CLOSED WONTFIX
Alias: CVE-2020-11762
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 1829000 1829001 1833576 1833577
Blocks: 1829017
TreeView+ depends on / blocked
 
Reported: 2020-04-28 17:19 UTC by Guilherme de Almeida Suckevicz
Modified: 2021-11-01 17:10 UTC (History)
6 users (show)

Fixed In Version: OpenEXR 2.4.1
Doc Type: If docs needed, set a value
Doc Text:
Clone Of:
Environment:
Last Closed: 2021-11-01 17:10:52 UTC
Embargoed:

Attachments (Terms of Use)

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.
Comment 7 Todd Cullum 2020-05-12 19:37:11 UTC 
Upstream patch: https://github.com/AcademySoftwareFoundation/openexr/pull/643/commits/40c6dd5b729b011eb354ab64d8b17f2366024c23
Note You need to log in before you can comment on or make changes to this bug.