CVEvulnerability

CVE-2021-25634

7.5 HIGH Published 2021-10-12 Modified 2026-06-17 Official page ↗
Status
Modified
Published
2021-10-12
Last modified
2026-06-17
Assigner
[email protected]
CVSS 3.1 ([email protected])
7.5 HIGH — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
CVSS 2.0 ([email protected])
5.0 MEDIUM — AV:N/AC:L/Au:N/C:N/I:P/A:N
Weaknesses
CWE-295

Description

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.

Affected configurations

• libreoffice libreoffice (>= 7.0.0 < 7.0.6) • libreoffice libreoffice (>= 7.1.0 < 7.1.2) • debian debian linux 11.0

Related

Weakness · CWE (1)

  • CWE-295 Improper Certificate Validation weakness

References