CVE-2021-20300: Integer Overflow or Wraparound

March 4, 2022 (updated December 13, 2022)

A flaw was found in OpenEXR’s hufUncompress functionality in OpenEXR/IlmImf/ImfHuf.cpp. This flaw allows an attacker who can submit a crafted file that is processed by OpenEXR, to trigger an integer overflow. The highest threat from this vulnerability is to system availability.

References

bugs.chromium.org/p/oss-fuzz/issues/detail?id=25562
bugzilla.redhat.com/show_bug.cgi?id=1939153
github.com/AcademySoftwareFoundation/openexr/pull/836
nvd.nist.gov/vuln/detail/CVE-2021-20300

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