Описание
In the Linux kernel, the following vulnerability has been resolved:
ksmbd: fix racy issue from session lookup and expire
Increment the session reference count within the lock for lookup to avoid
racy issue with session expire.
A flaw was found in ksmbd, a Linux kernel module that provides an in-kernel SMB server. A race condition exists in the session lookup and expiration process. This issue occurs because the session reference count is not properly incremented within the lock during lookup. A remote attacker could potentially exploit this to cause a denial of service due to improper session handling.
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 10 | kernel | Not affected | ||
| Red Hat Enterprise Linux 6 | kernel | Not affected | ||
| Red Hat Enterprise Linux 7 | kernel | Not affected | ||
| Red Hat Enterprise Linux 7 | kernel-rt | Not affected | ||
| Red Hat Enterprise Linux 8 | kernel | Not affected | ||
| Red Hat Enterprise Linux 8 | kernel-rt | Not affected | ||
| Red Hat Enterprise Linux 9 | kernel | Not affected | ||
| Red Hat Enterprise Linux 9 | kernel-rt | Not affected |
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Дополнительная информация
Статус:
8.1 High
CVSS3
Связанные уязвимости
In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix racy issue from session lookup and expire Increment the session reference count within the lock for lookup to avoid racy issue with session expire.
In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix racy issue from session lookup and expire Increment the session reference count within the lock for lookup to avoid racy issue with session expire.
In the Linux kernel, the following vulnerability has been resolved: k ...
In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix racy issue from session lookup and expire Increment the session reference count within the lock for lookup to avoid racy issue with session expire.
Уязвимость функции check_session_id(), smb2_check_user_session(), smb2_sess_setup(), smb2_session_logoff(), smb3_decrypt_req(), ksmbd_session_lookup(), ksmbd_session_lookup_slowpath() и ksmbd_get_encryption_key() ядра операционной системы Linux, позволяющая нарушителю вызвать отказ в обслуживании
8.1 High
CVSS3