CVE-2020-10957

Published: May 18, 2020Modified: Jun 17, 2026

7.5

Vector

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

Exploitability: 3.9 / Impact: 3.6

Source: NVD

Description

In Dovecot before 2.3.10.1, unauthenticated sending of malformed parameters to a NOOP command causes a NULL Pointer Dereference and crash in submission-login, submission, or lmtp.

Affected (1)

Products: Dovecot: Dovecot

Dovecot

1 product

Dovecot

Configuration A

1 vulnerable

Vulnerable Software	Affected Versions
Dovecot Dovecot	Before 2.3.10.1

Related CWEs

CWE-476

NULL Pointer Dereference

The product dereferences a pointer that it expects to be valid but is NULL.

References (20)

http://lists.opensuse.org/opensuse-security-announce/2020-05/msg00059.html

Source: cve@mitre.org

http://packetstormsecurity.com/files/157771/Open-Xchange-Dovecot-2.3.10-Null-Pointer-Dereference-Denial-Of-Service.html

Source: cve@mitre.org

http://seclists.org/fulldisclosure/2020/May/37

Source: cve@mitre.org

ExploitThird Party Advisory

http://www.openwall.com/lists/oss-security/2020/05/18/1

Source: cve@mitre.org

Mailing ListThird Party Advisory

https://dovecot.org/security

Source: cve@mitre.org

Vendor Advisory

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TTZN2VW55ZC2AQBGBJMLRJSZIKSB2NS6/

Source: cve@mitre.org

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VVUWHUUAFPC6XGIXYFIPTNBXLHPNM4W6/

Source: cve@mitre.org

https://usn.ubuntu.com/4361-1/

Source: cve@mitre.org

https://www.debian.org/security/2020/dsa-4690

Source: cve@mitre.org

https://www.openwall.com/lists/oss-security/2020/05/18/1

Source: cve@mitre.org

Mailing ListThird Party Advisory

http://lists.opensuse.org/opensuse-security-announce/2020-05/msg00059.html