USN-7373-1: Exim vulnerability

USN-7373-1: Exim vulnerability
26 March 2025

Exim could be made to crash or run programs if it received specially crafted network traffic.

Releases

• Ubuntu 24.10
• Ubuntu 24.04 LTS

Packages
exim4 - Exim is a mail transport agent

Details
It was discovered that Exim incorrectly handled certain memory operations.
A remote attacker could use this issue to cause Exim to crash, resulting in
a denial of service, or possibly execute arbitrary code.

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

Ubuntu 24.10

• exim4 - 4.98-1ubuntu2.1
• exim4-base - 4.98-1ubuntu2.1
• eximon4 - 4.98-1ubuntu2.1
  Ubuntu 24.04
• exim4 - 4.97-4ubuntu4.3
• exim4-base - 4.97-4ubuntu4.3
• eximon4 - 4.97-4ubuntu4.3
  In general, a standard system update will make all the necessary changes.