========================================================================== Ubuntu Security Notice USN-8353-1 June 01, 2026
exim4 vulnerability ========================================================================== A security issue affects these releases of Ubuntu and its derivatives: - Ubuntu 26.04 LTS - Ubuntu 25.10 - Ubuntu 24.04 LTS - Ubuntu 22.04 LTS Summary: Exim could be made to expose sensitive information over the network. Software Description: - exim4: Exim is a mail transport agent Details: Warisjeet Singh discovered that Exim with SUPPORT_PROXY enabled did not properly handle memory before SMTP authentication. A remote attacker could possibly use this issue to obtain sensitive information. Update instructions: The problem can be corrected by updating your system to the following package versions: Ubuntu 26.04 LTS exim4 4.99.1-1ubuntu1.3 exim4-base 4.99.1-1ubuntu1.3 eximon4 4.99.1-1ubuntu1.3 Ubuntu 25.10 exim4 4.98.2-1ubuntu2.3 exim4-base 4.98.2-1ubuntu2.3 eximon4 4.98.2-1ubuntu2.3 Ubuntu 24.04 LTS exim4 4.97-4ubuntu4.6 exim4-base 4.97-4ubuntu4.6 eximon4 4.97-4ubuntu4.6 Ubuntu 22.04 LTS exim4 4.95-4ubuntu2.9 exim4-base 4.95-4ubuntu2.9 eximon4 4.95-4ubuntu2.9 In general, a standard system update will make all the necessary changes. References: https://ubuntu.com/security/notices/USN-8353-1 CVE-2026-48840 Package Information: https://launchpad.net/ubuntu/+source/exim4/4.99.1-1ubuntu1.3 https://launchpad.net/ubuntu/+source/exim4/4.98.2-1ubuntu2.3 https://launchpad.net/ubuntu/+source/exim4/4.97-4ubuntu4.6 https://launchpad.net/ubuntu/+source/exim4/4.95-4ubuntu2.9
signature.asc
Description: OpenPGP digital signature
