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Ubuntu Security Notice USN-6790-1
May 28, 2024
amavisd-new vulnerability
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A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 24.04 LTS
- Ubuntu 23.10
- Ubuntu 22.04 LTS
- Ubuntu 20.04 LTS
Summary:
amavisd-new could be made to bypass security measures.
Software Description:
- amavisd-new: Interface between MTA and virus scanner/content filters
Details:
It was discovered that amavisd-new incorrectly handled certain MIME email
messages with multiple boundary parameters. A remote attacker could
possibly use this issue to bypass checks for banned files or malware.
Update instructions:
The problem can be corrected by updating your system to the following
package versions:
Ubuntu 24.04 LTS
   amavisd-new                     1:2.13.0-3ubuntu2
Ubuntu 23.10
   amavisd-new                     1:2.13.0-3ubuntu1.1
Ubuntu 22.04 LTS
   amavisd-new                     1:2.12.2-1ubuntu1.1
Ubuntu 20.04 LTS
   amavisd-new                     1:2.11.0-6.1ubuntu1.1
After a standard system update you need to reboot your computer to make all
the necessary changes.
References:
   https://ubuntu.com/security/notices/USN-6790-1
   CVE-2024-28054
Package Information:
   https://launchpad.net/ubuntu/+source/amavisd-new/1:2.13.0-3ubuntu2
   https://launchpad.net/ubuntu/+source/amavisd-new/1:2.13.0-3ubuntu1.1
   https://launchpad.net/ubuntu/+source/amavisd-new/1:2.12.2-1ubuntu1.1
   https://launchpad.net/ubuntu/+source/amavisd-new/1:2.11.0-6.1ubuntu1.1