Описание
An attacker that has valid credentials can send an invalid IMAP URLFETCH command, which causes uninitialized memory to be included in the error response returned to the client. Process memory contents can be disclosed to the client, which may include sensitive data. Disable the IMAP URLAUTH functionality. Update to non-vulnerable version. No publicly available exploits are known.
A flaw was found in Dovecot. An attacker with valid credentials can send an invalid IMAP URLFETCH command, leading to the inclusion of uninitialized memory in the error response. This can disclose process memory contents to the client, potentially revealing sensitive data.
Меры по смягчению последствий
To mitigate this issue, disable the IMAP URLAUTH functionality in Dovecot. This can typically be achieved by commenting out or removing the mail_plugins = $mail_plugins imap_urlauth line from your Dovecot configuration file (e.g., /etc/dovecot/conf.d/20-imap.conf or similar). A restart of the Dovecot service is required for the changes to take effect, which may temporarily interrupt mail services.
Затронутые пакеты
| Платформа | Пакет | Состояние | Рекомендация | Релиз |
|---|---|---|---|---|
| Red Hat Enterprise Linux 10 | dovecot | Fix deferred | ||
| Red Hat Enterprise Linux 6 | dovecot | Out of support scope | ||
| Red Hat Enterprise Linux 7 | dovecot | Fix deferred | ||
| Red Hat Enterprise Linux 8 | dovecot | Fix deferred | ||
| Red Hat Enterprise Linux 9 | dovecot | Fix deferred |
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Дополнительная информация
Статус:
EPSS
4.3 Medium
CVSS3
Связанные уязвимости
An attacker that has valid credentials can send an invalid IMAP URLFETCH command, which causes uninitialized memory to be included in the error response returned to the client. Process memory contents can be disclosed to the client, which may include sensitive data. Disable the IMAP URLAUTH functionality. Update to non-vulnerable version. No publicly available exploits are known.
An attacker that has valid credentials can send an invalid IMAP URLFETCH command, which causes uninitialized memory to be included in the error response returned to the client. Process memory contents can be disclosed to the client, which may include sensitive data. Disable the IMAP URLAUTH functionality. Update to non-vulnerable version. No publicly available exploits are known.
An attacker that has valid credentials can send an invalid IMAP URLFET ...
An attacker that has valid credentials can send an invalid IMAP URLFETCH command, which causes uninitialized memory to be included in the error response returned to the client. Process memory contents can be disclosed to the client, which may include sensitive data. Disable the IMAP URLAUTH functionality. Update to non-vulnerable version. No publicly available exploits are known.
EPSS
4.3 Medium
CVSS3