Описание
lz4_flex is a pure Rust implementation of LZ4 compression/decompression. In versions 0.11.5 and below, and 0.12.0, decompressing invalid LZ4 data can leak sensitive information from uninitialized memory or from previous decompression operations. The library fails to properly validate offset values during LZ4 "match copy operations," allowing out-of-bounds reads from the output buffer. The block-based API functions (decompress_into, decompress_into_with_dict, and others when safe-decode is disabled) are affected, while all frame APIs are unaffected. The impact is potential exposure of sensitive data and secrets through crafted or malformed LZ4 input. This issue has been fixed in versions 0.11.6 and 0.12.1.
Отчет
In RHEL 9 and RHEL 10, this vulnerability presents minimal risk as the rust-analyzer component operates in a "closed loop," strictly decompressing its own internal database. Because it does not process external or untrusted data, exploitation requires an attacker to already possess local access and sufficient privileges to tamper with the internal cache files on disk.
Затронутые пакеты
| Платформа | Пакет | Состояние | Рекомендация | Релиз |
|---|---|---|---|---|
| OpenShift Lightspeed | openshift-lightspeed/lightspeed-service-api-rhel9 | Will not fix | ||
| Red Hat Ansible Automation Platform 2 | ansible-automation-platform-25/lightspeed-chatbot-rhel8 | Will not fix | ||
| Red Hat Enterprise Linux 10 | rust | Not affected | ||
| Red Hat Enterprise Linux 9 | rust | Not affected | ||
| Red Hat OpenShift AI (RHOAI) | rhoai/odh-model-registry-job-async-upload-rhel9 | Not affected | ||
| Logging for Red Hat OpenShift 6.2 | openshift-logging/vector-rhel9 | Fixed | RHSA-2026:11800 | 29.04.2026 |
| Logging for Red Hat OpenShift 6.4 | openshift-logging/vector-rhel9 | Fixed | RHSA-2026:22862 | 03.06.2026 |
| Logging Subsystem for Red Hat OpenShift 6.5 | openshift-logging/vector-rhel9 | Fixed | RHSA-2026:16354 | 12.05.2026 |
| Red Hat OpenShift AI 3.3 | rhoai/odh-llm-d-inference-scheduler-rhel9 | Fixed | RHSA-2026:19712 | 20.05.2026 |
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Ссылки на источники
Дополнительная информация
Статус:
EPSS
7.5 High
CVSS3
Связанные уязвимости
lz4_flex is a pure Rust implementation of LZ4 compression/decompression. In versions 0.11.5 and below, and 0.12.0, decompressing invalid LZ4 data can leak sensitive information from uninitialized memory or from previous decompression operations. The library fails to properly validate offset values during LZ4 "match copy operations," allowing out-of-bounds reads from the output buffer. The block-based API functions (`decompress_into`, `decompress_into_with_dict`, and others when `safe-decode` is disabled) are affected, while all frame APIs are unaffected. The impact is potential exposure of sensitive data and secrets through crafted or malformed LZ4 input. This issue has been fixed in versions 0.11.6 and 0.12.1.
lz4_flex is a pure Rust implementation of LZ4 compression/decompression. In versions 0.11.5 and below, and 0.12.0, decompressing invalid LZ4 data can leak sensitive information from uninitialized memory or from previous decompression operations. The library fails to properly validate offset values during LZ4 "match copy operations," allowing out-of-bounds reads from the output buffer. The block-based API functions (`decompress_into`, `decompress_into_with_dict`, and others when `safe-decode` is disabled) are affected, while all frame APIs are unaffected. The impact is potential exposure of sensitive data and secrets through crafted or malformed LZ4 input. This issue has been fixed in versions 0.11.6 and 0.12.1.
lz4_flex is a pure Rust implementation of LZ4 compression/decompressio ...
lz4_flex's decompression can leak information from uninitialized memory or reused output buffer
EPSS
7.5 High
CVSS3