🛡️ MGASA-2021-0471 — libneon (CVE-2021-25635)

⚪ Unknown ✅ No Known Exploit OSV
N/A
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

Updated libreoffice packages fix security vulnerability

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 self sign an ODF document, with a signature untrusted by the

target, then modify it to change the signature algorithm to an invalid

(or unknown to LibreOffice) algorithm and LibreOffice would incorrectly

present such a signature with an unknown algorithm as a valid signature

issued by a trusted person.

This updates to version 7.2.2.2 which includes the fix as well as other

bugfixes.

Affected software

MGASA-2021-0471 is recorded against 2 packages.

  • libneon (fixed in 0.31.2-1.mga8)
  • libreoffice (fixed in 7.2.2.2-1.mga8)

Timeline and source

Published on 12 October 2021 and last revised on 16 April 2026. No public exploit is currently recorded for this entry. Record sourced from OSV.

References

advisories.mageia.org (Advisory)
bugs.mageia.org (Report)
www.libreoffice.org (Advisory)
wiki.documentfoundation.org (Web)
wiki.documentfoundation.org (Web)

Details

Severity Unknown
CVSS Score N/A
CVSS Vector N/A
CWE N/A
Public Exploit ✅ No
Source OSV
Published 2021-10-12
Updated 2026-08-12
Modified 2026-04-16
Fix URL N/A

Affected Packages

Software From version Fixed in
libneon — 0.31.2-1.mga8
libreoffice — 7.2.2.2-1.mga8

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