Debian: DSA-5908-1: Critical Issue in LibreOffice PDF Signature Validation

Juray Sarinay discovered that PDF documents signed with the
adbe.pkcs7.sha1 standard were incompletely validated by LibreOffice,
which could cause invalid signatures to be accepted as legitimate.

For the stable distribution (bookworm), this problem has been fixed in
version 4:7.4.7-1+deb12u8.

We recommend that you upgrade your libreoffice packages.

For the detailed security status of libreoffice please refer to
its security tracker page at:
https://security-tracker.debian.org/tracker/source-package/libreoffice

Further information about Debian Security Advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://www.debian.org/security/