CVEvulnerability

CVE-2021-25633

7.5 HIGH Published 2021-10-11 Modified 2026-06-17 Official page ↗
Status
Modified
Published
2021-10-11
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 create a digitally signed ODF document, by manipulating the documentsignatures.xml or macrosignatures.xml stream within the document to combine multiple certificate data, which when opened caused LibreOffice to display a validly signed indicator but whose content was unrelated to the signature shown. 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