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...
Alias: CVE-2020-16589
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
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
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Clone Of:
Last Closed: 2021-11-02 23:07:42 UTC

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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.


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

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

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