Important: libarchive security update

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. On 32-bit systems, an integer overflow vulnerability exists in the zisofs block pointer allocation logic. A remote attacker can exploit this by providing a specially crafted ISO9660 image, which can lead to a heap buffer overflow. This could potentially allow for arbitrary code execution on the affected system.

ELSA-2026-8492: libarchive security update (IMPORTANT)

Уязвимость библиотеки libarchive, связанная с чтением за границами буфера в памяти, позволяющая нарушителю раскрыть защищаемую информацию

Уязвимость библиотеки архивирования Libarchive, связанная с целочисленным переполнением, позволяющая нарушителю вызвать отказ в обслуживании

Уязвимость libarchive