Описание
Dovecot before version 2.2.29 is vulnerable to a denial of service. When 'dict' passdb and userdb were used for user authentication, the username sent by the IMAP/POP3 client was sent through var_expand() to perform %variable expansion. Sending specially crafted %variable fields could result in excessive memory usage causing the process to crash (and restart), or excessive CPU usage causing all authentications to hang.
Ссылки
- Mailing ListThird Party Advisory
- Third Party AdvisoryVDB Entry
- Issue TrackingThird Party Advisory
- Vendor Advisory
- Third Party Advisory
- Third Party Advisory
- Mailing ListThird Party Advisory
- Third Party AdvisoryVDB Entry
- Issue TrackingThird Party Advisory
- Vendor Advisory
- Third Party Advisory
- Third Party Advisory
Уязвимые конфигурации
EPSS
3.7 Low
CVSS3
7.5 High
CVSS3
5 Medium
CVSS2
Дефекты
Связанные уязвимости
Dovecot before version 2.2.29 is vulnerable to a denial of service. When 'dict' passdb and userdb were used for user authentication, the username sent by the IMAP/POP3 client was sent through var_expand() to perform %variable expansion. Sending specially crafted %variable fields could result in excessive memory usage causing the process to crash (and restart), or excessive CPU usage causing all authentications to hang.
Dovecot before version 2.2.29 is vulnerable to a denial of service. When 'dict' passdb and userdb were used for user authentication, the username sent by the IMAP/POP3 client was sent through var_expand() to perform %variable expansion. Sending specially crafted %variable fields could result in excessive memory usage causing the process to crash (and restart), or excessive CPU usage causing all authentications to hang.
Dovecot before version 2.2.29 is vulnerable to a denial of service. Wh ...
EPSS
3.7 Low
CVSS3
7.5 High
CVSS3
5 Medium
CVSS2