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Ubuntu Security Notice USN-7200-1
January 13, 2025

roundcube vulnerability
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A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 16.04 LTS

Summary:

Roundcube could be made to expose sensitive information.

Software Description:
- roundcube: skinnable AJAX based webmail solution for IMAP servers - 
metapack

Details:

It was discovered that Roundcube incorrectly handled certain file-based
attachment plugins. An attacker could exploit this to gain unauthorized
access to arbitrary files on the host’s file system.


Update instructions:

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

Ubuntu 16.04 LTS
  roundcube-core                  1.2~beta+dfsg.1-0ubuntu1+esm5
                                  Available with Ubuntu Pro
  roundcube-plugins               1.2~beta+dfsg.1-0ubuntu1+esm5
                                  Available with Ubuntu Pro

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

References:
https://ubuntu.com/security/notices/USN-7200-1 
<https://ubuntu.com/security/notices/USN-7200-1>
  CVE-2017-16651