Bug 1929323 (CVE-2020-16589) - CVE-2020-16589 OpenEXR: A heap-based buffer overflow in writeTileData in ImfTiledOutputFile.cpp could result in a DOS via a crafted EXR file
Summary: CVE-2020-16589 OpenEXR: A heap-based buffer overflow in writeTileData in ImfT...
Keywords:
Status: CLOSED WONTFIX
Alias: CVE-2020-16589
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
low
low
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 1929325 1929326 1930957 1930958 1930959
Blocks: 1929327
TreeView+ depends on / blocked
 
Reported: 2021-02-16 16:41 UTC by Michael Kaplan
Modified: 2021-11-02 23:07 UTC (History)
6 users (show)

Fixed In Version: openexr 2.4.0
Doc Type: If docs needed, set a value
Doc Text:
Clone Of:
Environment:
Last Closed: 2021-11-02 23:07:42 UTC
Embargoed:

Attachments (Terms of Use)

Description Michael Kaplan 2021-02-16 16:41:45 UTC 
A heap-based buffer overflow exists in Academy Software Foundation OpenEXR 2.3.0 in writeTileData in ImfTiledOutputFile.cpp that can cause a denial of service via a crafted EXR file.

https://github.com/AcademySoftwareFoundation/openexr/commit/6bb36714528a9563dd3b92720c5063a1284b86f8
https://github.com/AcademySoftwareFoundation/openexr/issues/494
Comment 1 Michael Kaplan 2021-02-16 16:41:49 UTC 
External References:

https://github.com/AcademySoftwareFoundation/openexr/commit/6bb36714528a9563dd3b92720c5063a1284b86f8
https://github.com/AcademySoftwareFoundation/openexr/issues/494
Comment 2 Michael Kaplan 2021-02-16 16:42:32 UTC 
Created OpenEXR tracking bugs for this issue:

Affects: fedora-all [bug 1929325]
Comment 5 Todd Cullum 2021-02-19 21:25:24 UTC 
Statement:

This flaw is out of support scope for OpenEXR as shipped with Red Hat Enterprise Linux 6 and 7. For more information on Red Hat Enterprise Linux support scope, please see https://access.redhat.com/support/policy/updates/errata/ .
Comment 7 Todd Cullum 2021-02-24 17:45:36 UTC 
Flaw summary:

TiledInputFile::rawTileData() did not validate the tile coordinates before reading from the tile buffer, which could lead to an out-of-bounds read during copyPixels(). The patch uses isValidTile() to correct this.

Upstream patch: https://github.com/peterhillman/openexr/commit/a6512959ac823ac89027ef373deff6f386920bb9
Note You need to log in before you can comment on or make changes to this bug.