Vulnerability CVE-2021-20303


Published: 2022-03-04

Description:
A flaw found in function dataWindowForTile() of IlmImf/ImfTiledMisc.cpp. An attacker who is able to submit a crafted file to be processed by OpenEXR could trigger an integer overflow, leading to an out-of-bounds write on the heap. The greatest impact of this flaw is to application availability, with some potential impact to data integrity as well.

Type:

CWE-190

(Integer Overflow or Wraparound)

CVSS2 => (AV:N/AC:M/Au:N/C:N/I:P/A:P)

CVSS Base Score
Impact Subscore
Exploitability Subscore
5.8/10
4.9/10
8.6/10
Exploit range
Attack complexity
Authentication
Remote
Medium
No required
Confidentiality impact
Integrity impact
Availability impact
None
Partial
Partial
Affected software
Openexr -> Openexr 

 References:
https://bugzilla.redhat.com/show_bug.cgi?id=1939151
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=25505
https://github.com/AcademySoftwareFoundation/openexr/pull/831

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