CVE-2022-26305
Severity CVSS v4.0:
Pending analysis
Type:
CWE-295
Improper Certificate Validation
Publication date:
25/07/2022
Last modified:
26/03/2023
Description
An Improper Certificate Validation vulnerability in LibreOffice existed where determining if a macro was signed by a trusted author was done by only matching the serial number and issuer string of the used certificate with that of a trusted certificate. This is not sufficient to verify that the macro was actually signed with the certificate. An adversary could therefore create an arbitrary certificate with a serial number and an issuer string identical to a trusted certificate which LibreOffice would present as belonging to the trusted author, potentially leading to the user to execute arbitrary code contained in macros improperly trusted. This issue affects: The Document Foundation LibreOffice 7.2 versions prior to 7.2.7; 7.3 versions prior to 7.3.1.
Impact
Base Score 3.x
7.50
Severity 3.x
HIGH
Vulnerable products and versions
| CPE | From | Up to |
|---|---|---|
| cpe:2.3:a:libreoffice:libreoffice:*:*:*:*:*:*:*:* | 7.2.0 (including) | 7.2.7 (excluding) |
| cpe:2.3:a:libreoffice:libreoffice:*:*:*:*:*:*:*:* | 7.3.0 (including) | 7.3.2 (excluding) |
To consult the complete list of CPE names with products and versions, see this page



