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Ubuntu Security Notice USN-6654-1
February 26, 2024

roundcube vulnerability

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

• Ubuntu 23.10
• Ubuntu 22.04 LTS (Available with Ubuntu Pro)
• Ubuntu 20.04 LTS (Available with Ubuntu Pro)
• Ubuntu 18.04 LTS (Available with Ubuntu Pro)
• Ubuntu 16.04 LTS (Available with Ubuntu Pro)

Summary:

Roundcube Webmail could allow cross-site scripting (XSS) attacks.

Software Description:

• roundcube: skinnable AJAX based webmail solution for IMAP servers

Details:

It was discovered that Roundcube Webmail incorrectly sanitized characters
in the linkrefs text messages. An attacker could possibly use this issue to
execute a cross-site scripting (XSS) attack. (CVE-2023-43770)

Update instructions:

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

Ubuntu 23.10:
roundcube 1.6.2+dfsg-1ubuntu0.1
roundcube-core 1.6.2+dfsg-1ubuntu0.1

Ubuntu 22.04 LTS (Available with Ubuntu Pro):
roundcube 1.5.0+dfsg.1-2ubuntu0.1~esm2
roundcube-core 1.5.0+dfsg.1-2ubuntu0.1~esm2

Ubuntu 20.04 LTS (Available with Ubuntu Pro):
roundcube 1.4.3+dfsg.1-1ubuntu0.1~esm3
roundcube-core 1.4.3+dfsg.1-1ubuntu0.1~esm3

Ubuntu 18.04 LTS (Available with Ubuntu Pro):
roundcube 1.3.6+dfsg.1-1ubuntu0.1~esm3
roundcube-core 1.3.6+dfsg.1-1ubuntu0.1~esm3

Ubuntu 16.04 LTS (Available with Ubuntu Pro):
roundcube 1.2~beta+dfsg.1-0ubuntu1+esm3
roundcube-core 1.2~beta+dfsg.1-0ubuntu1+esm3

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

References:
https://ubuntu.com/security/notices/USN-6654-1
CVE-2023-43770

Package Information:
https://launchpad.net/ubuntu/+source/roundcube/1.6.2+dfsg-1ubuntu0.1