Описание
A flaw was found in libarchive. This heap out-of-bounds read vulnerability exists in the RAR archive processing logic due to improper validation of the LZSS sliding window size after transitions between compression methods. A remote attacker can exploit this by providing a specially crafted RAR archive, leading to the disclosure of sensitive heap memory information without requiring authentication or user interaction.
Отчет
IMPORTANT: This heap out-of-bounds read vulnerability in libarchive's RAR archive processing logic can lead to information disclosure. A remote attacker can exploit this flaw by providing a specially crafted RAR archive, potentially revealing sensitive heap memory information without requiring authentication or user interaction on systems that process untrusted archives.
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 | libarchive | Out of support scope | ||
| Red Hat Enterprise Linux 10 | libarchive | Fixed | RHSA-2026:8492 | 16.04.2026 |
| Red Hat Enterprise Linux 10.0 Extended Update Support | libarchive | Fixed | RHSA-2026:8865 | 20.04.2026 |
| Red Hat Enterprise Linux 7 Extended Lifecycle Support | libarchive | Fixed | RHSA-2026:8517 | 16.04.2026 |
| Red Hat Enterprise Linux 8 | libarchive | Fixed | RHSA-2026:8534 | 16.04.2026 |
| Red Hat Enterprise Linux 8.2 Advanced Update Support | libarchive | Fixed | RHSA-2026:8521 | 16.04.2026 |
| Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support | libarchive | Fixed | RHSA-2026:9592 | 22.04.2026 |
| Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On | libarchive | Fixed | RHSA-2026:9592 | 22.04.2026 |
| Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support | libarchive | Fixed | RHSA-2026:8908 | 20.04.2026 |
| Red Hat Enterprise Linux 8.6 Telecommunications Update Service | libarchive | Fixed | RHSA-2026:8908 | 20.04.2026 |
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Дополнительная информация
Статус:
EPSS
7.5 High
CVSS3
Связанные уязвимости
A flaw was found in libarchive. This heap out-of-bounds read vulnerability exists in the RAR archive processing logic due to improper validation of the LZSS sliding window size after transitions between compression methods. A remote attacker can exploit this by providing a specially crafted RAR archive, leading to the disclosure of sensitive heap memory information without requiring authentication or user interaction.
A flaw was found in libarchive. This heap out-of-bounds read vulnerability exists in the RAR archive processing logic due to improper validation of the LZSS sliding window size after transitions between compression methods. A remote attacker can exploit this by providing a specially crafted RAR archive, leading to the disclosure of sensitive heap memory information without requiring authentication or user interaction.
Libarchive: libarchive: information disclosure via heap out-of-bounds read in rar archive processing
A flaw was found in libarchive. This heap out-of-bounds read vulnerabi ...
EPSS
7.5 High
CVSS3