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CVE-2021-20296: NULL Pointer Dereference

April 1, 2021 (updated December 13, 2022)

A crafted input file supplied by an attacker that is processed by the Dwa decompression functionality of OpenEXR’s IlmImf library, could cause a NULL pointer dereference. The highest threat from this vulnerability is to system availability.

References

  • bugs.chromium.org/p/oss-fuzz/issues/detail?id=24854
  • bugzilla.redhat.com/show_bug.cgi?id=1939141
  • nvd.nist.gov/vuln/detail/CVE-2021-20296

Code Behaviors & Features

Detect and mitigate CVE-2021-20296 with GitLab Dependency Scanning

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Affected versions

All versions before 2.4.3, all versions starting from 2.5.0 before 2.5.4

Fixed versions

  • 2.5.4

Solution

Upgrade to version 2.5.4 or above.

Impact 5.3 MEDIUM

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

Learn more about CVSS

Weakness

  • CWE-476: NULL Pointer Dereference

Source file

conan/openexr/CVE-2021-20296.yml

Spotted a mistake? Edit the file on GitLab.

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