Описание
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 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.
A flaw was found in OpenEXR, an image storage format library for the motion picture industry. An attacker can craft a malicious EXR file that, when processed, causes an integer overflow in the CompositeDeepScanLine::readPixels function. This overflow leads to an undersized buffer allocation, which can then be overrun during write operations. Successful exploitation could result in arbitrary code execution or a denial of service (DoS).
Меры по смягчению последствий
Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.
Затронутые пакеты
| Платформа | Пакет | Состояние | Рекомендация | Релиз |
|---|---|---|---|---|
| Red Hat Enterprise Linux 6 | OpenEXR | Out of support scope | ||
| Red Hat Enterprise Linux 7 | OpenEXR | Not affected | ||
| Red Hat Enterprise Linux 10 | openexr | Fixed | RHSA-2026:7682 | 13.04.2026 |
| Red Hat Enterprise Linux 10.0 Extended Update Support | openexr | Fixed | RHSA-2026:7678 | 13.04.2026 |
| Red Hat Enterprise Linux 8 | OpenEXR | Fixed | RHSA-2026:8863 | 20.04.2026 |
| Red Hat Enterprise Linux 8.2 Advanced Update Support | OpenEXR | Fixed | RHSA-2026:12340 | 30.04.2026 |
| Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support | OpenEXR | Fixed | RHSA-2026:12341 | 30.04.2026 |
| Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On | OpenEXR | Fixed | RHSA-2026:12341 | 30.04.2026 |
| Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support | OpenEXR | Fixed | RHSA-2026:12339 | 30.04.2026 |
| Red Hat Enterprise Linux 8.6 Telecommunications Update Service | OpenEXR | Fixed | RHSA-2026:12339 | 30.04.2026 |
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Дополнительная информация
Статус:
EPSS
7.4 High
CVSS3
Связанные уязвимости
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.
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.
OpenEXR provides the specification and reference implementation of the ...
EPSS
7.4 High
CVSS3