Уязвимость функции do_uncompress_block and process_block библиотеки libarchive, позволяющая нарушителю вызвать отказ в обслуживании

Уязвимость библиотеки архивирования libarchive, связанная с отслеживанием символьных ссылок, позволяющая нарушителю повысить свои привилегии

Уязвимость библиотеки архивирования libarchive, связанная с отслеживанием символьных ссылок, позволяющая нарушителю повысить свои привилегии

An improper link resolution flaw while extracting an archive can lead to changing the access control list (ACL) of the target of the link. An attacker may provide a malicious archive to a victim user, who would trigger this flaw when trying to extract the archive. A local attacker may use this flaw to change the ACL of a file on the system and gain more privileges.

An improper link resolution flaw can occur while extracting an archive leading to changing modes, times, access control lists, and flags of a file outside of the archive. An attacker may provide a malicious archive to a victim user, who would trigger this flaw when trying to extract the archive. A local attacker may use this flaw to gain more privileges in a system.

libarchive 3.4.1 through 3.5.1 has a use-after-free in copy_string (called from do_uncompress_block and process_block).