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.
| Релиз | Статус | Примечание |
|---|---|---|
| devel | released | 2.2.27-2ubuntu2 |
| esm-infra-legacy/trusty | not-affected | 1:2.2.9-1ubuntu2.1 |
| esm-infra/xenial | not-affected | |
| precise | not-affected | |
| trusty | not-affected | 1:2.2.9-1ubuntu2.1 |
| trusty/esm | not-affected | 1:2.2.9-1ubuntu2.1 |
| upstream | needed | |
| vivid/stable-phone-overlay | DNE | |
| vivid/ubuntu-core | DNE | |
| xenial | not-affected |
Показывать по
EPSS
5 Medium
CVSS2
3.7 Low
CVSS3
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
5 Medium
CVSS2
3.7 Low
CVSS3