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prionPRIOn knowledge basePRION:CVE-2021-25636
HistoryFeb 24, 2022 - 3:15 p.m.

Input validation

2022-02-2415:15:00
PRIOn knowledge base
www.prio-n.com
76

AI Score

7.3

Confidence

High

EPSS

0.001

Percentile

38.9%

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.

CPENameOperatorVersion
fedoraeq34
libreofficege7.2.0
libreofficelt7.2.5