Unrated severityNVD Advisory· Published Mar 21, 2025· Updated Mar 21, 2025

Content Manipulation with Certificate Validation Attack

CVE-2021-25635

Description

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 issue affects LibreOffice: from 7.0 before 7.0.5, from 7.1 before 7.1.1.

Affected products

173

Libreoffice/Libreofficellm-fuzzy
Range: >=7.0, <7.0.5; >=7.1, <7.1.1
osv-coords171 versions
pkg:rpm/almalinux/autocorr-af pkg:rpm/almalinux/autocorr-bg pkg:rpm/almalinux/autocorr-ca pkg:rpm/almalinux/autocorr-cs pkg:rpm/almalinux/autocorr-da pkg:rpm/almalinux/autocorr-de pkg:rpm/almalinux/autocorr-en pkg:rpm/almalinux/autocorr-es pkg:rpm/almalinux/autocorr-fa pkg:rpm/almalinux/autocorr-fi pkg:rpm/almalinux/autocorr-fr pkg:rpm/almalinux/autocorr-ga pkg:rpm/almalinux/autocorr-hr pkg:rpm/almalinux/autocorr-hu pkg:rpm/almalinux/autocorr-is pkg:rpm/almalinux/autocorr-it pkg:rpm/almalinux/autocorr-ja pkg:rpm/almalinux/autocorr-ko pkg:rpm/almalinux/autocorr-lb pkg:rpm/almalinux/autocorr-lt pkg:rpm/almalinux/autocorr-mn pkg:rpm/almalinux/autocorr-nl pkg:rpm/almalinux/autocorr-pl pkg:rpm/almalinux/autocorr-pt pkg:rpm/almalinux/autocorr-ro pkg:rpm/almalinux/autocorr-ru pkg:rpm/almalinux/autocorr-sk pkg:rpm/almalinux/autocorr-sl pkg:rpm/almalinux/autocorr-sr pkg:rpm/almalinux/autocorr-sv pkg:rpm/almalinux/autocorr-tr pkg:rpm/almalinux/autocorr-vi pkg:rpm/almalinux/autocorr-zh pkg:rpm/almalinux/libreoffice-base pkg:rpm/almalinux/libreoffice-calc pkg:rpm/almalinux/libreoffice-core pkg:rpm/almalinux/libreoffice-data pkg:rpm/almalinux/libreoffice-draw pkg:rpm/almalinux/libreoffice-emailmerge pkg:rpm/almalinux/libreoffice-filters pkg:rpm/almalinux/libreoffice-gdb-debug-support pkg:rpm/almalinux/libreoffice-graphicfilter pkg:rpm/almalinux/libreoffice-gtk3 pkg:rpm/almalinux/libreoffice-help-ar pkg:rpm/almalinux/libreoffice-help-bg pkg:rpm/almalinux/libreoffice-help-bn pkg:rpm/almalinux/libreoffice-help-ca pkg:rpm/almalinux/libreoffice-help-cs pkg:rpm/almalinux/libreoffice-help-da pkg:rpm/almalinux/libreoffice-help-de pkg:rpm/almalinux/libreoffice-help-dz pkg:rpm/almalinux/libreoffice-help-el pkg:rpm/almalinux/libreoffice-help-en pkg:rpm/almalinux/libreoffice-help-es pkg:rpm/almalinux/libreoffice-help-et pkg:rpm/almalinux/libreoffice-help-eu pkg:rpm/almalinux/libreoffice-help-fi pkg:rpm/almalinux/libreoffice-help-fr pkg:rpm/almalinux/libreoffice-help-gl pkg:rpm/almalinux/libreoffice-help-gu pkg:rpm/almalinux/libreoffice-help-he pkg:rpm/almalinux/libreoffice-help-hi pkg:rpm/almalinux/libreoffice-help-hr pkg:rpm/almalinux/libreoffice-help-hu pkg:rpm/almalinux/libreoffice-help-id pkg:rpm/almalinux/libreoffice-help-it pkg:rpm/almalinux/libreoffice-help-ja pkg:rpm/almalinux/libreoffice-help-ko pkg:rpm/almalinux/libreoffice-help-lt pkg:rpm/almalinux/libreoffice-help-lv pkg:rpm/almalinux/libreoffice-help-nb pkg:rpm/almalinux/libreoffice-help-nl pkg:rpm/almalinux/libreoffice-help-nn pkg:rpm/almalinux/libreoffice-help-pl pkg:rpm/almalinux/libreoffice-help-pt-BR pkg:rpm/almalinux/libreoffice-help-pt-PT pkg:rpm/almalinux/libreoffice-help-ro pkg:rpm/almalinux/libreoffice-help-ru pkg:rpm/almalinux/libreoffice-help-si pkg:rpm/almalinux/libreoffice-help-sk pkg:rpm/almalinux/libreoffice-help-sl pkg:rpm/almalinux/libreoffice-help-sv pkg:rpm/almalinux/libreoffice-help-ta pkg:rpm/almalinux/libreoffice-help-tr pkg:rpm/almalinux/libreoffice-help-uk pkg:rpm/almalinux/libreoffice-help-zh-Hans pkg:rpm/almalinux/libreoffice-help-zh-Hant pkg:rpm/almalinux/libreoffice-impress pkg:rpm/almalinux/libreofficekit pkg:rpm/almalinux/libreoffice-langpack-af pkg:rpm/almalinux/libreoffice-langpack-ar pkg:rpm/almalinux/libreoffice-langpack-as pkg:rpm/almalinux/libreoffice-langpack-bg pkg:rpm/almalinux/libreoffice-langpack-bn pkg:rpm/almalinux/libreoffice-langpack-br pkg:rpm/almalinux/libreoffice-langpack-ca pkg:rpm/almalinux/libreoffice-langpack-cs pkg:rpm/almalinux/libreoffice-langpack-cy pkg:rpm/almalinux/libreoffice-langpack-da pkg:rpm/almalinux/libreoffice-langpack-de pkg:rpm/almalinux/libreoffice-langpack-dz pkg:rpm/almalinux/libreoffice-langpack-el pkg:rpm/almalinux/libreoffice-langpack-en pkg:rpm/almalinux/libreoffice-langpack-es pkg:rpm/almalinux/libreoffice-langpack-et pkg:rpm/almalinux/libreoffice-langpack-eu pkg:rpm/almalinux/libreoffice-langpack-fa pkg:rpm/almalinux/libreoffice-langpack-fi pkg:rpm/almalinux/libreoffice-langpack-fr pkg:rpm/almalinux/libreoffice-langpack-ga pkg:rpm/almalinux/libreoffice-langpack-gl pkg:rpm/almalinux/libreoffice-langpack-gu pkg:rpm/almalinux/libreoffice-langpack-he pkg:rpm/almalinux/libreoffice-langpack-hi pkg:rpm/almalinux/libreoffice-langpack-hr pkg:rpm/almalinux/libreoffice-langpack-hu pkg:rpm/almalinux/libreoffice-langpack-id pkg:rpm/almalinux/libreoffice-langpack-it pkg:rpm/almalinux/libreoffice-langpack-ja pkg:rpm/almalinux/libreoffice-langpack-kk pkg:rpm/almalinux/libreoffice-langpack-kn pkg:rpm/almalinux/libreoffice-langpack-ko pkg:rpm/almalinux/libreoffice-langpack-lt pkg:rpm/almalinux/libreoffice-langpack-lv pkg:rpm/almalinux/libreoffice-langpack-mai pkg:rpm/almalinux/libreoffice-langpack-ml pkg:rpm/almalinux/libreoffice-langpack-mr pkg:rpm/almalinux/libreoffice-langpack-nb pkg:rpm/almalinux/libreoffice-langpack-nl pkg:rpm/almalinux/libreoffice-langpack-nn pkg:rpm/almalinux/libreoffice-langpack-nr pkg:rpm/almalinux/libreoffice-langpack-nso pkg:rpm/almalinux/libreoffice-langpack-or pkg:rpm/almalinux/libreoffice-langpack-pa pkg:rpm/almalinux/libreoffice-langpack-pl pkg:rpm/almalinux/libreoffice-langpack-pt-BR pkg:rpm/almalinux/libreoffice-langpack-pt-PT pkg:rpm/almalinux/libreoffice-langpack-ro pkg:rpm/almalinux/libreoffice-langpack-ru pkg:rpm/almalinux/libreoffice-langpack-si pkg:rpm/almalinux/libreoffice-langpack-sk pkg:rpm/almalinux/libreoffice-langpack-sl pkg:rpm/almalinux/libreoffice-langpack-sr pkg:rpm/almalinux/libreoffice-langpack-ss pkg:rpm/almalinux/libreoffice-langpack-st pkg:rpm/almalinux/libreoffice-langpack-sv pkg:rpm/almalinux/libreoffice-langpack-ta pkg:rpm/almalinux/libreoffice-langpack-te pkg:rpm/almalinux/libreoffice-langpack-th pkg:rpm/almalinux/libreoffice-langpack-tn pkg:rpm/almalinux/libreoffice-langpack-tr pkg:rpm/almalinux/libreoffice-langpack-ts pkg:rpm/almalinux/libreoffice-langpack-uk pkg:rpm/almalinux/libreoffice-langpack-ve pkg:rpm/almalinux/libreoffice-langpack-xh pkg:rpm/almalinux/libreoffice-langpack-zh-Hans pkg:rpm/almalinux/libreoffice-langpack-zh-Hant pkg:rpm/almalinux/libreoffice-langpack-zu pkg:rpm/almalinux/libreoffice-math pkg:rpm/almalinux/libreoffice-ogltrans pkg:rpm/almalinux/libreoffice-opensymbol-fonts pkg:rpm/almalinux/libreoffice-pdfimport pkg:rpm/almalinux/libreoffice-pyuno pkg:rpm/almalinux/libreoffice-sdk pkg:rpm/almalinux/libreoffice-sdk-doc pkg:rpm/almalinux/libreoffice-ure pkg:rpm/almalinux/libreoffice-ure-common pkg:rpm/almalinux/libreoffice-wiki-publisher pkg:rpm/almalinux/libreoffice-writer pkg:rpm/almalinux/libreoffice-x11 pkg:rpm/almalinux/libreoffice-xsltfilter
< 1:6.4.7.2-10.el8.alma+ 170 more
- (no CPE)range: < 1:6.4.7.2-10.el8.alma
- (no CPE)range: < 1:6.4.7.2-10.el8.alma
- (no CPE)range: < 1:6.4.7.2-10.el8.alma
- (no CPE)range: < 1:6.4.7.2-10.el8.alma
- (no CPE)range: < 1:6.4.7.2-10.el8.alma
- (no CPE)range: < 1:6.4.7.2-10.el8.alma
- (no CPE)range: < 1:6.4.7.2-10.el8.alma
- (no CPE)range: < 1:6.4.7.2-10.el8.alma
- (no CPE)range: < 1:6.4.7.2-10.el8.alma
- (no CPE)range: < 1:6.4.7.2-10.el8.alma
- (no CPE)range: < 1:6.4.7.2-10.el8.alma
- (no CPE)range: < 1:6.4.7.2-10.el8.alma
- (no CPE)range: < 1:6.4.7.2-10.el8.alma
- (no CPE)range: < 1:6.4.7.2-10.el8.alma
- (no CPE)range: < 1:6.4.7.2-10.el8.alma
- (no CPE)range: < 1:6.4.7.2-10.el8.alma
- (no CPE)range: < 1:6.4.7.2-10.el8.alma
- (no CPE)range: < 1:6.4.7.2-10.el8.alma
- (no CPE)range: < 1:6.4.7.2-10.el8.alma
- (no CPE)range: < 1:6.4.7.2-10.el8.alma
- (no CPE)range: < 1:6.4.7.2-10.el8.alma
- (no CPE)range: < 1:6.4.7.2-10.el8.alma
- (no CPE)range: < 1:6.4.7.2-10.el8.alma
- (no CPE)range: < 1:6.4.7.2-10.el8.alma
- (no CPE)range: < 1:6.4.7.2-10.el8.alma
- (no CPE)range: < 1:6.4.7.2-10.el8.alma
- (no CPE)range: < 1:6.4.7.2-10.el8.alma
- (no CPE)range: < 1:6.4.7.2-10.el8.alma
- (no CPE)range: < 1:6.4.7.2-10.el8.alma
- (no CPE)range: < 1:6.4.7.2-10.el8.alma
- (no CPE)range: < 1:6.4.7.2-10.el8.alma
- (no CPE)range: < 1:6.4.7.2-10.el8.alma
- (no CPE)range: < 1:6.4.7.2-10.el8.alma
- (no CPE)range: < 1:6.4.7.2-10.el8.alma
- (no CPE)range: < 1:6.4.7.2-10.el8.alma
- (no CPE)range: < 1:6.4.7.2-10.el8.alma
- (no CPE)range: < 1:6.4.7.2-10.el8.alma
- (no CPE)range: < 1:6.4.7.2-10.el8.alma
- (no CPE)range: < 1:6.4.7.2-10.el8.alma
- (no CPE)range: < 1:6.4.7.2-10.el8.alma
- (no CPE)range: < 1:6.4.7.2-10.el8.alma
- (no CPE)range: < 1:6.4.7.2-10.el8.alma
- (no CPE)range: < 1:6.4.7.2-10.el8.alma
- (no CPE)range: < 1:6.4.7.2-10.el8.alma
- (no CPE)range: < 1:6.4.7.2-10.el8.alma
- (no CPE)range: < 1:6.4.7.2-10.el8.alma
- (no CPE)range: < 1:6.4.7.2-10.el8.alma
- (no CPE)range: < 1:6.4.7.2-10.el8.alma
- (no CPE)range: < 1:6.4.7.2-10.el8.alma
- (no CPE)range: < 1:6.4.7.2-10.el8.alma
- (no CPE)range: < 1:6.4.7.2-10.el8.alma
- (no CPE)range: < 1:6.4.7.2-10.el8.alma
- (no CPE)range: < 1:6.4.7.2-10.el8.alma
- (no CPE)range: < 1:6.4.7.2-10.el8.alma
- (no CPE)range: < 1:6.4.7.2-10.el8.alma
- (no CPE)range: < 1:6.4.7.2-10.el8.alma
- (no CPE)range: < 1:6.4.7.2-10.el8.alma
- (no CPE)range: < 1:6.4.7.2-10.el8.alma
- (no CPE)range: < 1:6.4.7.2-10.el8.alma
- (no CPE)range: < 1:6.4.7.2-10.el8.alma
- (no CPE)range: < 1:6.4.7.2-10.el8.alma
- (no CPE)range: < 1:6.4.7.2-10.el8.alma
- (no CPE)range: < 1:6.4.7.2-10.el8.alma
- (no CPE)range: < 1:6.4.7.2-10.el8.alma
- (no CPE)range: < 1:6.4.7.2-10.el8.alma
- (no CPE)range: < 1:6.4.7.2-10.el8.alma
- (no CPE)range: < 1:6.4.7.2-10.el8.alma
- (no CPE)range: < 1:6.4.7.2-10.el8.alma
- (no CPE)range: < 1:6.4.7.2-10.el8.alma
- (no CPE)range: < 1:6.4.7.2-10.el8.alma
- (no CPE)range: < 1:6.4.7.2-10.el8.alma
- (no CPE)range: < 1:6.4.7.2-10.el8.alma
- (no CPE)range: < 1:6.4.7.2-10.el8.alma
- (no CPE)range: < 1:6.4.7.2-10.el8.alma
- (no CPE)range: < 1:6.4.7.2-10.el8.alma
- (no CPE)range: < 1:6.4.7.2-10.el8.alma
- (no CPE)range: < 1:6.4.7.2-10.el8.alma
- (no CPE)range: < 1:6.4.7.2-10.el8.alma
- (no CPE)range: < 1:6.4.7.2-10.el8.alma
- (no CPE)range: < 1:6.4.7.2-10.el8.alma
- (no CPE)range: < 1:6.4.7.2-10.el8.alma
- (no CPE)range: < 1:6.4.7.2-10.el8.alma
- (no CPE)range: < 1:6.4.7.2-10.el8.alma
- (no CPE)range: < 1:6.4.7.2-10.el8.alma
- (no CPE)range: < 1:6.4.7.2-10.el8.alma
- (no CPE)range: < 1:6.4.7.2-10.el8.alma
- (no CPE)range: < 1:6.4.7.2-10.el8.alma
- (no CPE)range: < 1:6.4.7.2-10.el8.alma
- (no CPE)range: < 1:6.4.7.2-10.el8.alma
- (no CPE)range: < 1:6.4.7.2-10.el8.alma
- (no CPE)range: < 1:6.4.7.2-10.el8.alma
- (no CPE)range: < 1:6.4.7.2-10.el8.alma
- (no CPE)range: < 1:6.4.7.2-10.el8.alma
- (no CPE)range: < 1:6.4.7.2-10.el8.alma
- (no CPE)range: < 1:6.4.7.2-10.el8.alma
- (no CPE)range: < 1:6.4.7.2-10.el8.alma
- (no CPE)range: < 1:6.4.7.2-10.el8.alma
- (no CPE)range: < 1:6.4.7.2-10.el8.alma
- (no CPE)range: < 1:6.4.7.2-10.el8.alma
- (no CPE)range: < 1:6.4.7.2-10.el8.alma
- (no CPE)range: < 1:6.4.7.2-10.el8.alma
- (no CPE)range: < 1:6.4.7.2-10.el8.alma
- (no CPE)range: < 1:6.4.7.2-10.el8.alma
- (no CPE)range: < 1:6.4.7.2-10.el8.alma
- (no CPE)range: < 1:6.4.7.2-10.el8.alma
- (no CPE)range: < 1:6.4.7.2-10.el8.alma
- (no CPE)range: < 1:6.4.7.2-10.el8.alma
- (no CPE)range: < 1:6.4.7.2-10.el8.alma
- (no CPE)range: < 1:6.4.7.2-10.el8.alma
- (no CPE)range: < 1:6.4.7.2-10.el8.alma
- (no CPE)range: < 1:6.4.7.2-10.el8.alma
- (no CPE)range: < 1:6.4.7.2-10.el8.alma
- (no CPE)range: < 1:6.4.7.2-10.el8.alma
- (no CPE)range: < 1:6.4.7.2-10.el8.alma
- (no CPE)range: < 1:6.4.7.2-10.el8.alma
- (no CPE)range: < 1:6.4.7.2-10.el8.alma
- (no CPE)range: < 1:6.4.7.2-10.el8.alma
- (no CPE)range: < 1:6.4.7.2-10.el8.alma
- (no CPE)range: < 1:6.4.7.2-10.el8.alma
- (no CPE)range: < 1:6.4.7.2-10.el8.alma
- (no CPE)range: < 1:6.4.7.2-10.el8.alma
- (no CPE)range: < 1:6.4.7.2-10.el8.alma
- (no CPE)range: < 1:6.4.7.2-10.el8.alma
- (no CPE)range: < 1:6.4.7.2-10.el8.alma
- (no CPE)range: < 1:6.4.7.2-10.el8.alma
- (no CPE)range: < 1:6.4.7.2-10.el8.alma
- (no CPE)range: < 1:6.4.7.2-10.el8.alma
- (no CPE)range: < 1:6.4.7.2-10.el8.alma
- (no CPE)range: < 1:6.4.7.2-10.el8.alma
- (no CPE)range: < 1:6.4.7.2-10.el8.alma
- (no CPE)range: < 1:6.4.7.2-10.el8.alma
- (no CPE)range: < 1:6.4.7.2-10.el8.alma
- (no CPE)range: < 1:6.4.7.2-10.el8.alma
- (no CPE)range: < 1:6.4.7.2-10.el8.alma
- (no CPE)range: < 1:6.4.7.2-10.el8.alma
- (no CPE)range: < 1:6.4.7.2-10.el8.alma
- (no CPE)range: < 1:6.4.7.2-10.el8.alma
- (no CPE)range: < 1:6.4.7.2-10.el8.alma
- (no CPE)range: < 1:6.4.7.2-10.el8.alma
- (no CPE)range: < 1:6.4.7.2-10.el8.alma
- (no CPE)range: < 1:6.4.7.2-10.el8.alma
- (no CPE)range: < 1:6.4.7.2-10.el8.alma
- (no CPE)range: < 1:6.4.7.2-10.el8.alma
- (no CPE)range: < 1:6.4.7.2-10.el8.alma
- (no CPE)range: < 1:6.4.7.2-10.el8.alma
- (no CPE)range: < 1:6.4.7.2-10.el8.alma
- (no CPE)range: < 1:6.4.7.2-10.el8.alma
- (no CPE)range: < 1:6.4.7.2-10.el8.alma
- (no CPE)range: < 1:6.4.7.2-10.el8.alma
- (no CPE)range: < 1:6.4.7.2-10.el8.alma
- (no CPE)range: < 1:6.4.7.2-10.el8.alma
- (no CPE)range: < 1:6.4.7.2-10.el8.alma
- (no CPE)range: < 1:6.4.7.2-10.el8.alma
- (no CPE)range: < 1:6.4.7.2-10.el8.alma
- (no CPE)range: < 1:6.4.7.2-10.el8.alma
- (no CPE)range: < 1:6.4.7.2-10.el8.alma
- (no CPE)range: < 1:6.4.7.2-10.el8.alma
- (no CPE)range: < 1:6.4.7.2-10.el8.alma
- (no CPE)range: < 1:6.4.7.2-10.el8.alma
- (no CPE)range: < 1:6.4.7.2-10.el8.alma
- (no CPE)range: < 1:6.4.7.2-10.el8.alma
- (no CPE)range: < 1:6.4.7.2-10.el8.alma
- (no CPE)range: < 1:6.4.7.2-10.el8.alma
- (no CPE)range: < 1:6.4.7.2-10.el8.alma
- (no CPE)range: < 1:6.4.7.2-10.el8.alma
- (no CPE)range: < 1:6.4.7.2-10.el8.alma
- (no CPE)range: < 1:6.4.7.2-10.el8.alma
- (no CPE)range: < 1:6.4.7.2-10.el8.alma
- (no CPE)range: < 1:6.4.7.2-10.el8.alma
- (no CPE)range: < 1:6.4.7.2-10.el8.alma
- (no CPE)range: < 1:6.4.7.2-10.el8.alma
The Document Foundation/Libreoffice Onlinecpe-rescue
Range: 7.0

Patches

No patches discovered yet.

Vulnerability mechanics

AI mechanics synthesis has not run for this CVE yet.

References

www.libreoffice.org/about-us/security/advisories/cve-2021-25635/mitre

News mentions

No linked articles in our index yet.

cvss	0.000
epss	0.000
exploit	0.000
kev	0.000
patch	0.000
ransomware	0.000