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. https://www.libreoffice.org/about-us/security/advisories/cve-2022-26305
Created libreoffice tracking bugs for this issue: Affects: fedora-all [bug 2118619]
This issue has been addressed in the following products: Red Hat Enterprise Linux 8 Via RHSA-2023:0089 https://access.redhat.com/errata/RHSA-2023:0089
This issue has been addressed in the following products: Red Hat Enterprise Linux 9 Via RHSA-2023:0304 https://access.redhat.com/errata/RHSA-2023:0304
This bug is now closed. Further updates for individual products will be reflected on the CVE page(s): https://access.redhat.com/security/cve/cve-2022-26305