Improper Certificate Validation Affecting libreoffice package, versions <1:7.0.4-4+deb11u2


Severity

Recommended
0.0
high
0
10

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Threat Intelligence

EPSS
0.14% (51st percentile)

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  • Snyk IDSNYK-DEBIAN11-LIBREOFFICE-2412375
  • published23 Feb 2022
  • disclosed24 Feb 2022

Introduced: 23 Feb 2022

CVE-2021-25636  (opens in a new tab)
CWE-295  (opens in a new tab)

How to fix?

Upgrade Debian:11 libreoffice to version 1:7.0.4-4+deb11u2 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream libreoffice package and not the libreoffice package as distributed by Debian. See How to fix? for Debian:11 relevant fixed versions and status.

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 contain both "X509Data" and "KeyValue" children of the "KeyInfo" tag, which when opened caused LibreOffice to verify using the "KeyValue" but to report verification with the unrelated "X509Data" value. This issue affects: The Document Foundation LibreOffice 7.2 versions prior to 7.2.5.

CVSS Scores

version 3.1