Improper Verification of Cryptographic Signature Affecting libreoffice package, versions [,7.2.5)


Severity

Recommended
0.0
medium
0
10

CVSS assessment made by Snyk's Security Team. Learn more

Threat Intelligence

EPSS
0.14% (51st percentile)

Do your applications use this vulnerable package?

In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.

Test your applications
  • Snyk IDSNYK-UNMANAGED-LIBREOFFICE-2411014
  • published23 Feb 2022
  • disclosed22 Feb 2022
  • creditNDS of Ruhr University Bochum

Introduced: 22 Feb 2022

CVE-2021-25636  (opens in a new tab)
CWE-347  (opens in a new tab)

How to fix?

Upgrade libreoffice to version 7.2.5 or higher.

Overview

Affected versions of this package are vulnerable to Improper Verification of Cryptographic Signature by manipulating the documentsignatures.xml or macrosignatures.xml stream within the document to contain both X509Data and KeyValue children of the KeyInfo tag. When opened, it causes LibreOffice to verify the KeyValue but to report that the verification is made with the unrelated X509Data value.

CVSS Scores

version 3.1