| Name | CVE-2022-26305 |
| 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. |
| Source | CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
| References | DLA-3368-1, ELA-968-1 |
Vulnerable and fixed packages
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|
| libreoffice (PTS) | jessie, jessie (lts) | 1:4.3.3-2+deb8u15 | vulnerable |
| stretch (security) | 1:5.2.7-1+deb9u11 | vulnerable |
| stretch (lts), stretch | 1:6.1.5-3~deb9u2 | fixed |
| buster | 1:6.1.5-3+deb10u7 | vulnerable |
| buster (security) | 1:6.1.5-3+deb10u11 | fixed |
| bullseye | 1:7.0.4-4+deb11u8 | fixed |
| bullseye (security) | 1:7.0.4-4+deb11u9 | fixed |
| bookworm | 4:7.4.7-1+deb12u1 | fixed |
| bookworm (security) | 4:7.4.7-1+deb12u2 | fixed |
| sid, trixie | 4:24.2.3-1 | fixed |
The information below is based on the following data on fixed versions.
Notes
https://www.libreoffice.org/about-us/security/advisories/cve-2022-26305
[stretch] - libreoffice <no-dsa> (Minor issue)
[jessie] - libreoffice <end-of-life> (GUI/non-headless not supported)