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High ALAS2023-2026-1481 1 CVE

Important: openexr security update (Amazon Linux 2023)

Published Mar 16, 2026 · Updated Mar 27, 2026

Summary

Package updates are available for Amazon Linux 2023 that fix the following vulnerabilities: CVE-2026-27622: OpenEXR provides the specification and reference implementation of the EXR file format, an image storage format for the motion picture industry. In CompositeDeepScanLine::readPixels, per-pixel totals are accumulated in vector<unsigned int> total_sizes for attacker-controlled large counts across many parts, total_sizes[ptr] wraps modulo 2^32. overall_sample_count is then derived from wrapped totals and used in samples[channel].resize(overall_sample_count). Decode pointer setup/consumption proceeds with true sample counts, and write operations in core unpack (generic_unpack_deep_pointers) overrun the undersized composite sample buffer. This vulnerability is fixed in v3.2.6, v3.3.8, and v3.4.6.

Fixed packages 6

ReleasePackageFixed in
Amazon Linux · 2023 openexr 0:3.1.5-1.amzn2023.0.7
Amazon Linux · 2023 openexr-debuginfo 0:3.1.5-1.amzn2023.0.7
Amazon Linux · 2023 openexr-debugsource 0:3.1.5-1.amzn2023.0.7
Amazon Linux · 2023 openexr-devel 0:3.1.5-1.amzn2023.0.7
Amazon Linux · 2023 openexr-libs 0:3.1.5-1.amzn2023.0.7
Amazon Linux · 2023 openexr-libs-debuginfo 0:3.1.5-1.amzn2023.0.7

Vulnerabilities 1

  • High 8.4

    OpenEXR CompositeDeepScanLine integer-overflow leads to heap OOB write

    OpenEXR provides the specification and reference implementation of the EXR file format, an image storage format for the motion picture industry. In CompositeDeepScanLine::readPixels, per-pixel totals are accumulated in vector<unsigned int> total_sizes for att…

References

  • web
    https://alas.aws.amazon.com/cve/html/CVE-2026-27622.html