Vulnerability CVE-2020-12674
Published: 2020-08-12

Description:
In Dovecot before 2.3.11.3, sending a specially formatted RPA request will crash the auth service because a length of zero is mishandled.

Type:

CWE-125

 (Out-of-bounds Read)

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:
https://dovecot.org/security
https://lists.debian.org/debian-lts-announce/2020/08/msg00024.html
https://usn.ubuntu.com/4456-1/
https://usn.ubuntu.com/4456-2/
https://www.debian.org/security/2020/dsa-4745
https://www.openwall.com/lists/oss-security/2020/08/12/3
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