Fedora 31: FEDORA-2019-ea638fb605 Critical IMAP Threat Overview

Dovecot is an IMAP server for Linux/UNIX-like systems, written with security

primarily in mind. It also contains a small POP3 server. It supports mail

in either of maildir or mbox formats.

The SQL drivers and authentication plug-ins are in their subpackages.

* CVE-2019-11500: IMAP protocol parser does not properly handle NUL byte when

scanning data in quoted strings, leading to out of bounds heap memory writes

[ 1 ] Bug #1742010 - dovecot-2.3.7.1 is available

https://bugzilla.redhat.com/show_bug.cgi?id=1742010

[ 2 ] Bug #1746666 - CVE-2019-11500 dovecot: improper NULL byte handling in IMAP and ManageSieve protocol parsers leads to out of bounds writes [fedora-all]

https://bugzilla.redhat.com/show_bug.cgi?id=1746666

su -c 'dnf upgrade --advisory FEDORA-2019-ea638fb605' at the command

line. For more information, refer to the dnf documentation available at

https://dnf.readthedocs.io/en/latest/command_ref.html

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