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Ubuntu Security Notice USN-7025-1
September 19, 2024

libreoffice vulnerability

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

• Ubuntu 22.04 LTS
• Ubuntu 20.04 LTS

Summary:

LibreOffice could accept fraudulent digital signatures.

Software Description:

• libreoffice: Office productivity suite

Details:

It was discovered that LibreOffice would incorrectly handle digital
signature verification after repairing a corrupted document. A remote
attacker could possibly use this issue to forge valid signatures.

Update instructions:

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

Ubuntu 22.04 LTS
libreoffice 1:7.3.7-0ubuntu0.22.04.7

Ubuntu 20.04 LTS
libreoffice 1:6.4.7-0ubuntu0.20.04.12

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

References:
https://ubuntu.com/security/notices/USN-7025-1
CVE-2024-7788

Package Information:
https://launchpad.net/ubuntu/+source/libreoffice/1:7.3.7-0ubuntu0.22.04.7
https://launchpad.net/ubuntu/+source/libreoffice/1:6.4.7-0ubuntu0.20.04.12