Bug 1939161 (CVE-2021-20302) - CVE-2021-20302 OpenEXR: Floating-point-exception in Imf_2_5::precalculateTileInfot
Summary: CVE-2021-20302 OpenEXR: Floating-point-exception in Imf_2_5::precalculateTile...
Alias: CVE-2021-20302
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
: 1939162 (view as bug list)
Depends On: 1939177 1944925 1944926 1944927
Blocks: 1929339 2002258
TreeView+ depends on / blocked
Reported: 2021-03-15 17:27 UTC by Michael Kaplan
Modified: 2021-11-02 23:22 UTC (History)
5 users (show)

Fixed In Version: OpenEXR 2.5.4
Doc Type: If docs needed, set a value
Doc Text:
A flaw was found in OpenEXR's TiledInputFile functionality. This flaw allows an attacker who can submit a crafted single-part non-image to be processed by OpenEXR, to trigger a floating-point exception error. The highest threat from this vulnerability is to system availability.
Clone Of:
Last Closed: 2021-11-02 23:22:57 UTC

Attachments (Terms of Use)

Description Michael Kaplan 2021-03-15 17:27:58 UTC
Floating-point-exception in Imf_2_5::precalculateTileInfot

Comment 1 Michael Kaplan 2021-03-15 17:28:02 UTC
External References:


Comment 2 Michael Kaplan 2021-03-15 17:48:25 UTC
Created OpenEXR tracking bugs for this issue:

Affects: fedora-all [bug 1939177]

Comment 3 Todd Cullum 2021-03-30 23:44:39 UTC
Upstream PR (has explanation of changes): https://github.com/AcademySoftwareFoundation/openexr/pull/842

Flaw summary:

If a crafted single-part non-image file is processed by OpenEXR, it is not detected and could lead to a floating point exception in methods such as precalculateTileInfot().

Comment 6 Todd Cullum 2021-03-31 00:02:24 UTC
*** Bug 1939162 has been marked as a duplicate of this bug. ***

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