cve-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
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
secalert@redhat.comhttp://www.openwall.com/lists/oss-security/2017/04/11/1Mailing List, Third Party Advisory
secalert@redhat.comhttp://www.securityfocus.com/bid/97536Third Party Advisory, VDB Entry
secalert@redhat.comhttps://bugzilla.redhat.com/show_bug.cgi?id=CVE-2017-2669Issue Tracking, Third Party Advisory
secalert@redhat.comhttps://dovecot.org/pipermail/dovecot-news/2017-April/000341.htmlVendor Advisory
secalert@redhat.comhttps://github.com/dovecot/core/commit/000030feb7a30f193197f1aab8a7b04a26b42735.patchThird Party Advisory
secalert@redhat.comhttps://www.debian.org/security/2017/dsa-3828Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108http://www.openwall.com/lists/oss-security/2017/04/11/1Mailing List, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108http://www.securityfocus.com/bid/97536Third Party Advisory, VDB Entry
af854a3a-2127-422b-91ae-364da2661108https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2017-2669Issue Tracking, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://dovecot.org/pipermail/dovecot-news/2017-April/000341.htmlVendor Advisory
af854a3a-2127-422b-91ae-364da2661108https://github.com/dovecot/core/commit/000030feb7a30f193197f1aab8a7b04a26b42735.patchThird Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://www.debian.org/security/2017/dsa-3828Third Party Advisory
Impacted products
Vendor Product Version
[UNKNOWN] dovecot Version: dovecot 2.2.29
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