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CVE-2021-25634

Published: 12 October 2021

LibreOffice supports digital signatures of ODF documents and macros within documents, presenting visual aids that no alteration of the document occurred since the last signing and that the signature is valid. An Improper Certificate Validation vulnerability in LibreOffice allowed an attacker to modify a digitally signed ODF document to insert an additional signing time timestamp which LibreOffice would incorrectly present as a valid signature signed at the bogus signing time. This issue affects: The Document Foundation LibreOffice 7-0 versions prior to 7.0.6; 7-1 versions prior to 7.1.2.

Priority

Medium

CVSS 3 base score: 7.5

Status

Package Release Status
libreoffice
Launchpad, Ubuntu, Debian
bionic Ignored

focal
Released (1:6.4.7-0ubuntu0.20.04.2)
hirsute Not vulnerable
(1:7.1.2~rc2-0ubuntu2)
impish Not vulnerable
(1:7.2.1-0ubuntu3)
jammy Not vulnerable

trusty Ignored
(out of standard support)
upstream
Released (7.0.6,7.1.2,1:7.2.0-2)
xenial Not vulnerable
(code not present)