Integer Overflow or Wraparound Affecting openexr package, versions <2.3.0-6ubuntu0.5+esm1


Severity

Recommended
low

Based on Ubuntu security rating.

Threat Intelligence

EPSS
1.15% (65th percentile)

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  • Snyk IDSNYK-UBUNTU2004-OPENEXR-1289939
  • published19 Aug 2025
  • disclosed8 Jun 2021

Introduced: 8 Jun 2021

CVE-2021-23215  (opens in a new tab)
CWE-190  (opens in a new tab)
CWE-400  (opens in a new tab)

How to fix?

Upgrade Ubuntu:20.04 openexr to version 2.3.0-6ubuntu0.5+esm1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream openexr package and not the openexr package as distributed by Ubuntu. See How to fix? for Ubuntu:20.04 relevant fixed versions and status.

An integer overflow leading to a heap-buffer overflow was found in the DwaCompressor of OpenEXR in versions before 3.0.1. An attacker could use this flaw to crash an application compiled with OpenEXR.

CVSS Base Scores

version 3.1