VDB
CVE-2017-2669
CVE-2017-2669
REJECTED
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.
EPSS 6.87% · 91.5th percentile
Risk Scores
EPSS Score
6.87%
91.5th percentile
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Ubuntu:14.04:LTS | dovecot | 0, 1:2.1.7-7ubuntu3, 1:2.2.9-1ubuntu1 |
Exploit Intelligence
- [dovecot-news] 20170410 v2.2.29 released (circl)
- [oss-security] 20170411 CVE-2017-2669: Dovecot DoS when passdb dict was used for authentication (circl)
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2017-2669 (circl)
- https://github.com/dovecot/core/commit/000030feb7a30f193197f1aab8a7b04a26b42735.patch (circl)
- DSA-3828 (circl)
- 97536 (circl)
Timeline
- Apr 14, 2021 EPSS Score
- Jun 23, 2021 EPSS Score
- Oct 26, 2021 EPSS Score
- Dec 27, 2021 EPSS Score
- Feb 28, 2022 EPSS Score
- May 2, 2022 EPSS Score
- Jul 3, 2022 EPSS Score
- Nov 6, 2022 EPSS Score
- Jan 8, 2023 EPSS Score
- Mar 11, 2023 EPSS Score
- May 8, 2023 EPSS Score
- Jun 15, 2023 EPSS Score
References
- https://ubuntu.com/security/CVE-2017-2669 third-party-advisory
- https://ubuntu.com/security/notices/USN-3258-1 vendor-advisory
- https://ubuntu.com/security/notices/USN-3258-2 vendor-advisory
- https://www.cve.org/CVERecord?id=CVE-2017-2669 third-party-advisory