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.
Advisories
Source ID Title
Debian DSA Debian DSA DSA-4988-1 libreoffice security update
EUVD EUVD EUVD-2021-12530 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.
Ubuntu USN Ubuntu USN USN-5153-1 LibreOffice vulnerabilities
Fixes

Solution

Update to 7.0.6 or 7.1.2 or 7.2.0


Workaround

No workaround given by the vendor.

History

No history.

cve-icon MITRE

Status: PUBLISHED

Assigner: Document Fdn.

Published:

Updated: 2024-09-17T00:46:33.587Z

Reserved: 2021-01-19T00:00:00

Link: CVE-2021-25634

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Modified

Published: 2021-10-12T14:15:08.290

Modified: 2024-11-21T05:55:11.250

Link: CVE-2021-25634

cve-icon Redhat

Severity : Moderate

Publid Date: 2021-10-11T00:00:00Z

Links: CVE-2021-25634 - Bugzilla

cve-icon OpenCVE Enrichment

No data.