CVE-2017-2669 (GCVE-0-2017-2669)
Vulnerability from cvelistv5
Published
2018-06-21 13:00
Modified
2024-08-05 14:02
Severity ?
3.7 (Low) - CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L
CWE
Summary
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.
References
Impacted products
Vendor Product Version
[UNKNOWN] dovecot Version: dovecot 2.2.29
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