Vulnerability CVE-2020-25275
Published: 2021-01-04

Description:
Dovecot before 2.3.13 has Improper Input Validation in lda, lmtp, and imap, leading to an application crash via a crafted email message with certain choices for ten thousand MIME parts.

See advisories in our WLB2 database:
Topic
Author
Date
Med.
Dovecot 2.3.11.3 Denial Of Service
Innokentii Senno...
07.01.2021

Type:

CWE-20

 (Improper Input Validation)

CVSS2 => (AV:N/AC:L/Au:N/C:N/I:N/A:P)

CVSS Base Score
Impact Subscore
Exploitability Subscore
5/10
2.9/10
10/10
Exploit range
Attack complexity
Authentication
Remote
Low
No required
Confidentiality impact
Integrity impact
Availability impact
None
None
Partial
Affected software
Dovecot -> Dovecot 
Debian -> Debian linux 

 References:
http://packetstormsecurity.com/files/160841/Dovecot-2.3.11.3-Denial-Of-Service.html
http://seclists.org/fulldisclosure/2021/Jan/18
http://www.openwall.com/lists/oss-security/2021/01/04/3
https://dovecot.org/pipermail/dovecot-news/2021-January/000451.html
https://dovecot.org/security
https://security.gentoo.org/glsa/202101-01
https://www.debian.org/security/2021/dsa-4825
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