==========================================================================
Ubuntu Security Notice USN-6982-1
September 02, 2024
dovecot vulnerabilities
==========================================================================
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 24.04 LTS
Summary:
Several security issues were fixed in Dovecot.
Software Description:
- dovecot: IMAP and POP3 email server
Details:
It was discovered that Dovecot did not not properly have restrictions on
ithe size of address headers. A remote attacker could possibly use this
issue to cause denial of service. (CVE-2024-23184, CVE-2024-23185)
Update instructions:
The problem can be corrected by updating your system to the following
package versions:
Ubuntu 24.04 LTS
  dovecot-core                    1:2.3.21+dfsg1-2ubuntu6
In general, a standard system update will make all the necessary changes.
References:
  https://ubuntu.com/security/notices/USN-6982-1
  CVE-2024-23184, CVE-2024-23185
Package Information:
  https://launchpad.net/ubuntu/+source/dovecot/1:2.3.21+dfsg1-2ubuntu6