========================================================================== Ubuntu Security Notice USN-7838-1 October 23, 2025
fetchmail vulnerability ========================================================================== A security issue affects these releases of Ubuntu and its derivatives: - Ubuntu 25.04 - Ubuntu 24.04 LTS - Ubuntu 22.04 LTS Summary: fetchmail could be made to crash if it received specially crafted network traffic. Software Description: - fetchmail: SSL enabled POP3, APOP, IMAP mail gatherer/forwarder Details: It was discovered that the fetchmail SMTP client incorrectly handled certain status code messages. An attacker controlling a malicious server could possibly use this issue to cause fetchmail to crash, resulting in a denial of service. Update instructions: The problem can be corrected by updating your system to the following package versions: Ubuntu 25.04 fetchmail 6.4.39-1ubuntu0.1 Ubuntu 24.04 LTS fetchmail 6.4.38-1ubuntu4.1 Ubuntu 22.04 LTS fetchmail 6.4.27-1ubuntu0.1 In general, a standard system update will make all the necessary changes. References: https://ubuntu.com/security/notices/USN-7838-1 CVE-2025-61962 Package Information: https://launchpad.net/ubuntu/+source/fetchmail/6.4.39-1ubuntu0.1 https://launchpad.net/ubuntu/+source/fetchmail/6.4.38-1ubuntu4.1 https://launchpad.net/ubuntu/+source/fetchmail/6.4.27-1ubuntu0.1
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