CVE-2020-7046 Information

Description

lib-smtp in submission-login and lmtp in Dovecot 2.3.9 before 2.3.9.3 mishandles truncated UTF-8 data in command parameters as demonstrated by the unauthenticated triggering of a submission-login infinite loop.

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Reference

http://www.openwall.com/lists/oss-security/2020/02/12/1 https://dovecot.org/pipermail/dovecot-news/2020-February/000431.html https://dovecot.org/security https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/6XYT55WH372BJOXCJRKBDIFGBMPVOIDT/ https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/NJXHOUT3FH2DJNMACSX4GHPP4MUV4UKA/

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

NONE

Availability Impact

NONE

Base Score

HIGH

Base Severity

7.5