Heap-based Buffer Overflow Affecting openexr-libs-debuginfo package, versions <0:3.1.1-3.el9_8.4


Severity

Recommended
high

Based on Rocky Linux security rating.

Threat Intelligence

EPSS
0.19% (8th percentile)

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  • Snyk IDSNYK-ROCKY9-OPENEXRLIBSDEBUGINFO-20073716
  • published24 Sept 2026
  • disclosed25 Aug 2026

Introduced: 25 Aug 2026

CVE-2026-68515  (opens in a new tab)
CWE-122  (opens in a new tab)
CWE-787  (opens in a new tab)

How to fix?

Upgrade Rocky-Linux:9 openexr-libs-debuginfo to version 0:3.1.1-3.el9_8.4 or higher.
This issue was patched in RLSA-2026:69608.

NVD Description

Note: Versions mentioned in the description apply only to the upstream openexr-libs-debuginfo package and not the openexr-libs-debuginfo package as distributed by Rocky-Linux. See How to fix? for Rocky-Linux:9 relevant fixed versions and status.

OpenEXR is the reference implementation and specification for the EXR image format, widely used in the motion picture industry. In versions before 3.2.11, 3.3.0 through 3.3.12, and 3.4.0 through 3.4.13, exrmultiview can write past a heap allocation when it combines two attacker-supplied, individually valid scanline EXR files whose union dataWindow is not aligned to one view's channel subsampling. The utility allocates sampled channel storage using a truncated union_width / xSampling, then reads the sampled input through a Slice based on the misaligned union window, producing a heap out-of-bounds write. The trigger is normal public-tool processing, such as exrmultiview left A.exr right B.exr out.exr with crafted but valid inputs, so this is not solely an API or caller-precondition issue. This issue is fixed in versions 3.2.11, 3.3.13, and 3.4.14.

CVSS Base Scores

version 3.1