All the vulnerabilites related to [UNKNOWN] - dovecot
cve-2017-2669
Vulnerability from cvelistv5
Published
2018-06-21 13:00
Modified
2024-08-05 14:02
Severity ?
EPSS score ?
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
| ▼ | URL | Tags |
|---|---|---|
| https://dovecot.org/pipermail/dovecot-news/2017-April/000341.html | mailing-list, x_refsource_MLIST | |
| http://www.openwall.com/lists/oss-security/2017/04/11/1 | mailing-list, x_refsource_MLIST | |
| https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2017-2669 | x_refsource_CONFIRM | |
| https://github.com/dovecot/core/commit/000030feb7a30f193197f1aab8a7b04a26b42735.patch | x_refsource_CONFIRM | |
| https://www.debian.org/security/2017/dsa-3828 | vendor-advisory, x_refsource_DEBIAN | |
| http://www.securityfocus.com/bid/97536 | vdb-entry, x_refsource_BID |
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