Vulnerability 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.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Libreoffice | Libreoffice | >= 7.2.0, < 7.2.7 |
Related Weaknesses (CWE)
References
- https://lists.debian.org/debian-lts-announce/2023/03/msg00022.html
- https://www.libreoffice.org/about-us/security/advisories/cve-2022-26305Vendor Advisory
- https://lists.debian.org/debian-lts-announce/2023/03/msg00022.html
- https://www.libreoffice.org/about-us/security/advisories/cve-2022-26305Vendor Advisory
FAQ
What is CVE-2022-26305?
CVE-2022-26305 is a vulnerability with a CVSS score of 7.5 (HIGH). 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...
How severe is CVE-2022-26305?
CVE-2022-26305 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2022-26305?
Check the references section above for vendor advisories and patch information. Affected products include: Libreoffice Libreoffice.