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.
References (10)
Core 10
Core References
Vendor Advisory x_refsource_misc
https://dovecot.org/security
Mailing List, Third Party Advisory x_refsource_confirm
https://www.openwall.com/lists/oss-security/2020/05/18/1
Mailing List, Third Party Advisory mailing-list
x_refsource_mlist
http://www.openwall.com/lists/oss-security/2020/05/18/1
Vendor Advisory vendor-advisory
x_refsource_ubuntu
https://usn.ubuntu.com/4361-1/
Exploit, Third Party Advisory mailing-list
x_refsource_fulldisc
http://seclists.org/fulldisclosure/2020/May/37
Exploit, Third Party Advisory x_refsource_misc
http://packetstormsecurity.com/files/157771/Open-Xchange-Dovecot-2.3.10-Null-Pointer-Dereference-Denial-Of-Service.html
Mailing List, Third Party Advisory vendor-advisory
x_refsource_fedora
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VVUWHUUAFPC6XGIXYFIPTNBXLHPNM4W6/
Mailing List vendor-advisory
x_refsource_suse
http://lists.opensuse.org/opensuse-security-announce/2020-05/msg00059.html
Mailing List, Third Party Advisory vendor-advisory
x_refsource_fedora
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TTZN2VW55ZC2AQBGBJMLRJSZIKSB2NS6/
Third Party Advisory vendor-advisory
x_refsource_debian
https://www.debian.org/security/2020/dsa-4690
Scores
CVSS v3
7.5
EPSS
0.0717
EPSS Percentile
93.5%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Details
CWE
CWE-476
Status
published
Products (1)
dovecot/dovecot
< 2.3.10.1
Published
May 18, 2020
Tracked Since
Feb 18, 2026