Out-of-bounds Write Affecting OpenEXR-debuginfo package, versions <0:1.7.1-8.amzn2.0.5


Severity

Recommended
high

Based on Amazon Linux security rating.

Threat Intelligence

EPSS
0.25% (17th percentile)

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  • Snyk IDSNYK-AMZN2-OPENEXRDEBUGINFO-16340769
  • published2 May 2026
  • disclosed1 Apr 2026

Introduced: 1 Apr 2026

CVE-2026-34544  (opens in a new tab)
CWE-787  (opens in a new tab)

How to fix?

Upgrade Amazon-Linux:2 OpenEXR-debuginfo to version 0:1.7.1-8.amzn2.0.5 or higher.
This issue was patched in ALAS2-2026-3267.

NVD Description

Note: Versions mentioned in the description apply only to the upstream OpenEXR-debuginfo package and not the OpenEXR-debuginfo package as distributed by Amazon-Linux. See How to fix? for Amazon-Linux:2 relevant fixed versions and status.

OpenEXR provides the specification and reference implementation of the EXR file format, an image storage format for the motion picture industry. From version 3.4.0 to before version 3.4.8, a crafted B44 or B44A EXR file can cause an out-of-bounds write in any application that decodes it via exr_decoding_run(). Consequences range from immediate crash (most likely) to corruption of adjacent heap allocations (layout-dependent). This issue has been patched in version 3.4.8.

CVSS Base Scores

version 3.1