https://vulnerability.circl.lu/rss/recent/all/10 Most recent entries from all 2026-10-03T07:00:37.046295+00:00 Vulnerability-Lookup info@circl.lu python-feedgen Contains only the most 10 recent entries. https://vulnerability.circl.lu/vuln/cve-2017-2669 CVE-2017-2669 2026-10-03T07:00:37.434027+00:00

Affected: [UNKNOWN] dovecot

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.

 https://vulnerability.circl.lu/vuln/usn-3258-1 USN-3258-1 — dovecot vulnerability 2026-10-03T07:00:37.434263+00:00

Affected: Ubuntu:16.04:LTS: dovecot

It was discovered that Dovecot incorrectly handled some usernames. An attacker could possibly use this issue to cause Dovecot to hang or crash, resulting in a denial of service.