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CVE-2021-25633

HIGH
7.5

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.

CVE Details

CVSS v3.1 Score7.5
SeverityHIGH
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Attack VectorNETWORK
ComplexityLOW
Privileges RequiredNONE
User InteractionNONE
Published10/11/2021
Last Modified11/21/2024
Sourcenvd
Honeypot Sightings0

Affected Products

debian:debian_linuxlibreoffice:libreoffice

Weaknesses (CWE)

CWE-295CWE-295

References

https://www.debian.org/security/2021/dsa-4988(security@documentfoundation.org)
https://www.libreoffice.org/about-us/security/advisories/CVE-2021-25633(security@documentfoundation.org)
https://www.debian.org/security/2021/dsa-4988(af854a3a-2127-422b-91ae-364da2661108)
https://www.libreoffice.org/about-us/security/advisories/CVE-2021-25633(af854a3a-2127-422b-91ae-364da2661108)

IOC Correlations

No correlations recorded

This product uses data from the NVD API but is not endorsed or certified by the NVD.