1. Ubuntu Security Notices
  2. USN-6982-1

USN-6982-1: Dovecot vulnerabilities

Publication date

2 September 2024

Overview

Several security issues were fixed in Dovecot.

Releases

Packages

  • 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)

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

In general, a standard system update will make all the necessary changes.

Learn more about how to get the fixes.

The problem can be corrected by updating your system to the following package versions:

Ubuntu Release Package Version
24.04 noble dovecot-core –  1:2.3.21+dfsg1-2ubuntu6

Reduce your security exposure

Ubuntu Pro provides ten-year security coverage to 25,000+ packages in Main and Universe repositories, and it is free for up to five machines.

Get Ubuntu Pro

References

Have additional questions?

Talk to a member of the team ›