Все бюллетени/sisyphus_riscv64/ALT-PU-2023-4216-1
ALT-PU-2023-4216-1

Обновление пакета libssh в ветке sisyphus_riscv64

Версия0.10.5-alt1
Задание#0
Опубликовано2023-07-06
Макс. серьёзностьMEDIUM
Серьёзность:

Закрытые проблемы (2)

CVE-2023-1667
MEDIUM6.5

A NULL pointer dereference was found In libssh during re-keying with algorithm guessing. This issue may allow an authenticated client to cause a denial of service.

Опубликовано: 2023-05-26Изменено: 2024-11-21
CVSS 3.xСРЕДНЯЯ 6.5
CVSS:3.x/CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Ссылки
CVE-2023-2283
MEDIUM6.5

A vulnerability was found in libssh, where the authentication check of the connecting client can be bypassed in the`pki_verify_data_signature` function in memory allocation problems. This issue may happen if there is insufficient memory or the memory usage is limited. The problem is caused by the return value `rc,` which is initialized to SSH_ERROR and later rewritten to save the return value of the function call `pki_key_check_hash_compatible.` The value of the variable is not changed between this point and the cryptographic verification. Therefore any error between them calls `goto error` returning SSH_OK.

Опубликовано: 2023-05-26Изменено: 2025-11-03
CVSS 3.xСРЕДНЯЯ 6.5
CVSS:3.x/CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
Ссылки