CVE-2020-10958

Medium

Description

In Dovecot before 2.3.10.1, a crafted SMTP/LMTP message triggers an unauthenticated use-after-free bug in submission-login, submission, or lmtp, and can lead to a crash under circumstances involving many newlines after a command.

SeverityMedium

CVSS5.3

Exploit probability—

ProductDovecot

PublishedMay 18, 2020

First seenMay 18, 2020

How to fix

Update

dovecot dovecot2.3.10.1 or later

Vendor advisories

usn.ubuntu.com/4361-1/
debian.org/security/2020/dsa-4690
lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VVUWHUUAFPC6XGIXYFIPTNBXLHPNM4W6/
lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TTZN2VW55ZC2AQBGBJMLRJSZIKSB2NS6/

Affected products

Product	Affected versions	Fixed in
dovecot dovecot	v < 2.3.10.1	2.3.10.1

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