CVE catalog

CVE-2021-25635

libreoffice: CVE-2021-25635

Severity: Medium · CVSS 6.3CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:N
Published: May 10, 2022, 2:11:12 PM UTC
Source: [NVD] · [CVE record]
EPSS: 0.14% · Oct 25, 2026

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.

Vulnerable and fixed packages

Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.

Distribution	Package	Release	Version	Status
Debian	libreoffice	sid	`4:26.8.1.1-3`	not affected
Debian	libreoffice	forky	`4:26.8.1.1-3`	not affected
Debian	libreoffice	trixie	`4:25.2.3-2+deb13u6`	not affected
Debian	libreoffice	trixie-security	`4:25.2.3-2+deb13u8`	not affected
Debian	libreoffice	bookworm	`4:7.4.7-1+deb12u14`	not affected
Debian	libreoffice	bookworm-security	`4:7.4.7-1+deb12u13`	not affected

Fixed-version evidence

Distribution	Package	Type	Release	Fixed version	Urgency	Origin	Bugs
Debian	libreoffice	source	sid	`Not affected`	unimportant	Not reported	Not reported
Debian	libreoffice	source	forky	`Not affected`	unimportant	Not reported	Not reported
Debian	libreoffice	source	trixie	`Not affected`	unimportant	Not reported	Not reported
Debian	libreoffice	source	bookworm	`Not affected`	unimportant	Not reported	Not reported

OpenFactory catalog packages

Matching against OpenFactory catalog package versions is in progress.

[Debian 12 (Bookworm)]

[fonts-opensymbol]Unknown
Source package: [libreoffice]
Details (6)
- 4:102.12+LibO7.4.7-1+deb12u14 · all · bookworm
  Not affected
  dsa · libreoffice · debian · bookworm
- 4:102.12+LibO7.4.7-1+deb12u14 · all · bookworm
  Not affected
  dsa · libreoffice · debian · bookworm
- 4:102.12+LibO25.2.3-2+deb13u5~bpo12+1 · all · bookworm-backports
  Not affected
  dsa · libreoffice · debian · bookworm
- 4:102.12+LibO25.2.3-2+deb13u5~bpo12+1 · all · bookworm-backports
  Not affected
  dsa · libreoffice · debian · bookworm
- 4:102.12+LibO7.4.7-1+deb12u13 · all · bookworm-security
  Not affected
  dsa · libreoffice · debian · bookworm
- 4:102.12+LibO7.4.7-1+deb12u13 · all · bookworm-security
  Not affected
  dsa · libreoffice · debian · bookworm
[gir1.2-lokdocview-0.1]Unknown
Source package: [libreoffice]
Details (6)
- 4:7.4.7-1+deb12u14 · amd64 · bookworm
  Not affected
  dsa · libreoffice · debian · bookworm
- 4:7.4.7-1+deb12u14 · arm64 · bookworm
  Not affected
  dsa · libreoffice · debian · bookworm
- 4:25.2.3-2+deb13u5~bpo12+1 · amd64 · bookworm-backports
  Not affected
  dsa · libreoffice · debian · bookworm
- 4:25.2.3-2+deb13u5~bpo12+1 · arm64 · bookworm-backports
  Not affected
  dsa · libreoffice · debian · bookworm
- 4:7.4.7-1+deb12u13 · amd64 · bookworm-security
  Not affected
  dsa · libreoffice · debian · bookworm
- 4:7.4.7-1+deb12u13 · arm64 · bookworm-security
  Not affected
  dsa · libreoffice · debian · bookworm
[liblibreoffice-java]Unknown
Source package: [libreoffice]
Details (6)
- 4:7.4.7-1+deb12u14 · all · bookworm
  Not affected
  dsa · libreoffice · debian · bookworm
- 4:7.4.7-1+deb12u14 · all · bookworm
  Not affected
  dsa · libreoffice · debian · bookworm
- 4:25.2.3-2+deb13u5~bpo12+1 · all · bookworm-backports
  Not affected
  dsa · libreoffice · debian · bookworm
- 4:25.2.3-2+deb13u5~bpo12+1 · all · bookworm-backports
  Not affected
  dsa · libreoffice · debian · bookworm
- 4:7.4.7-1+deb12u13 · all · bookworm-security
  Not affected
  dsa · libreoffice · debian · bookworm
- 4:7.4.7-1+deb12u13 · all · bookworm-security
  Not affected
  dsa · libreoffice · debian · bookworm
[liblibreofficekitgtk]Unknown
Source package: [libreoffice]
Details (6)
- 4:7.4.7-1+deb12u14 · amd64 · bookworm
  Not affected
  dsa · libreoffice · debian · bookworm
- 4:7.4.7-1+deb12u14 · arm64 · bookworm
  Not affected
  dsa · libreoffice · debian · bookworm
- 4:25.2.3-2+deb13u5~bpo12+1 · amd64 · bookworm-backports
  Not affected
  dsa · libreoffice · debian · bookworm
- 4:25.2.3-2+deb13u5~bpo12+1 · arm64 · bookworm-backports
  Not affected
  dsa · libreoffice · debian · bookworm
- 4:7.4.7-1+deb12u13 · amd64 · bookworm-security
  Not affected
  dsa · libreoffice · debian · bookworm
- 4:7.4.7-1+deb12u13 · arm64 · bookworm-security
  Not affected
  dsa · libreoffice · debian · bookworm
[libofficebean-java]Unknown
Source package: [libreoffice]
Details (6)
- 4:7.4.7-1+deb12u14 · amd64 · bookworm
  Not affected
  dsa · libreoffice · debian · bookworm
- 4:7.4.7-1+deb12u14 · arm64 · bookworm
  Not affected
  dsa · libreoffice · debian · bookworm
- 4:25.2.3-2+deb13u5~bpo12+1 · amd64 · bookworm-backports
  Not affected
  dsa · libreoffice · debian · bookworm
- 4:25.2.3-2+deb13u5~bpo12+1 · arm64 · bookworm-backports
  Not affected
  dsa · libreoffice · debian · bookworm
- 4:7.4.7-1+deb12u13 · amd64 · bookworm-security
  Not affected
  dsa · libreoffice · debian · bookworm
- 4:7.4.7-1+deb12u13 · arm64 · bookworm-security
  Not affected
  dsa · libreoffice · debian · bookworm
[libreoffice]Unknown
Details (6)
- 4:7.4.7-1+deb12u14 · amd64 · bookworm
  Not affected
  dsa · libreoffice · debian · bookworm
- 4:7.4.7-1+deb12u14 · arm64 · bookworm
  Not affected
  dsa · libreoffice · debian · bookworm
- 4:25.2.3-2+deb13u5~bpo12+1 · amd64 · bookworm-backports
  Not affected
  dsa · libreoffice · debian · bookworm
- 4:25.2.3-2+deb13u5~bpo12+1 · arm64 · bookworm-backports
  Not affected
  dsa · libreoffice · debian · bookworm
- 4:7.4.7-1+deb12u13 · amd64 · bookworm-security
  Not affected
  dsa · libreoffice · debian · bookworm
- 4:7.4.7-1+deb12u13 · arm64 · bookworm-security
  Not affected
  dsa · libreoffice · debian · bookworm
[libreoffice-base]Unknown
Source package: [libreoffice]
Details (6)
- 4:7.4.7-1+deb12u14 · amd64 · bookworm
  Not affected
  dsa · libreoffice · debian · bookworm
- 4:7.4.7-1+deb12u14 · arm64 · bookworm
  Not affected
  dsa · libreoffice · debian · bookworm
- 4:25.2.3-2+deb13u5~bpo12+1 · amd64 · bookworm-backports
  Not affected
  dsa · libreoffice · debian · bookworm
- 4:25.2.3-2+deb13u5~bpo12+1 · arm64 · bookworm-backports
  Not affected
  dsa · libreoffice · debian · bookworm
- 4:7.4.7-1+deb12u13 · amd64 · bookworm-security
  Not affected
  dsa · libreoffice · debian · bookworm
- 4:7.4.7-1+deb12u13 · arm64 · bookworm-security
  Not affected
  dsa · libreoffice · debian · bookworm
[libreoffice-base-core]Unknown
Source package: [libreoffice]
Details (6)
- 4:7.4.7-1+deb12u14 · amd64 · bookworm
  Not affected
  dsa · libreoffice · debian · bookworm
- 4:7.4.7-1+deb12u14 · arm64 · bookworm
  Not affected
  dsa · libreoffice · debian · bookworm
- 4:25.2.3-2+deb13u5~bpo12+1 · amd64 · bookworm-backports
  Not affected
  dsa · libreoffice · debian · bookworm
- 4:25.2.3-2+deb13u5~bpo12+1 · arm64 · bookworm-backports
  Not affected
  dsa · libreoffice · debian · bookworm
- 4:7.4.7-1+deb12u13 · amd64 · bookworm-security
  Not affected
  dsa · libreoffice · debian · bookworm
- 4:7.4.7-1+deb12u13 · arm64 · bookworm-security
  Not affected
  dsa · libreoffice · debian · bookworm
[libreoffice-base-drivers]Unknown
Source package: [libreoffice]
Details (6)
- 4:7.4.7-1+deb12u14 · amd64 · bookworm
  Not affected
  dsa · libreoffice · debian · bookworm
- 4:7.4.7-1+deb12u14 · arm64 · bookworm
  Not affected
  dsa · libreoffice · debian · bookworm
- 4:25.2.3-2+deb13u5~bpo12+1 · amd64 · bookworm-backports
  Not affected
  dsa · libreoffice · debian · bookworm
- 4:25.2.3-2+deb13u5~bpo12+1 · arm64 · bookworm-backports
  Not affected
  dsa · libreoffice · debian · bookworm
- 4:7.4.7-1+deb12u13 · amd64 · bookworm-security
  Not affected
  dsa · libreoffice · debian · bookworm
- 4:7.4.7-1+deb12u13 · arm64 · bookworm-security
  Not affected
  dsa · libreoffice · debian · bookworm
[libreoffice-base-nogui]Unknown
Source package: [libreoffice]
Details (6)
- 4:7.4.7-1+deb12u14 · amd64 · bookworm
  Not affected
  dsa · libreoffice · debian · bookworm
- 4:7.4.7-1+deb12u14 · arm64 · bookworm
  Not affected
  dsa · libreoffice · debian · bookworm
- 4:25.2.3-2+deb13u5~bpo12+1 · amd64 · bookworm-backports
  Not affected
  dsa · libreoffice · debian · bookworm
- 4:25.2.3-2+deb13u5~bpo12+1 · arm64 · bookworm-backports
  Not affected
  dsa · libreoffice · debian · bookworm
- 4:7.4.7-1+deb12u13 · amd64 · bookworm-security
  Not affected
  dsa · libreoffice · debian · bookworm
- 4:7.4.7-1+deb12u13 · arm64 · bookworm-security
  Not affected
  dsa · libreoffice · debian · bookworm
[libreoffice-calc]Unknown
Source package: [libreoffice]
Details (6)
- 4:7.4.7-1+deb12u14 · amd64 · bookworm
  Not affected
  dsa · libreoffice · debian · bookworm
- 4:7.4.7-1+deb12u14 · arm64 · bookworm
  Not affected
  dsa · libreoffice · debian · bookworm
- 4:25.2.3-2+deb13u5~bpo12+1 · amd64 · bookworm-backports
  Not affected
  dsa · libreoffice · debian · bookworm
- 4:25.2.3-2+deb13u5~bpo12+1 · arm64 · bookworm-backports
  Not affected
  dsa · libreoffice · debian · bookworm
- 4:7.4.7-1+deb12u13 · amd64 · bookworm-security
  Not affected
  dsa · libreoffice · debian · bookworm
- 4:7.4.7-1+deb12u13 · arm64 · bookworm-security
  Not affected
  dsa · libreoffice · debian · bookworm
[libreoffice-calc-nogui]Unknown
Source package: [libreoffice]
Details (6)
- 4:7.4.7-1+deb12u14 · amd64 · bookworm
  Not affected
  dsa · libreoffice · debian · bookworm
- 4:7.4.7-1+deb12u14 · arm64 · bookworm
  Not affected
  dsa · libreoffice · debian · bookworm
- 4:25.2.3-2+deb13u5~bpo12+1 · amd64 · bookworm-backports
  Not affected
  dsa · libreoffice · debian · bookworm
- 4:25.2.3-2+deb13u5~bpo12+1 · arm64 · bookworm-backports
  Not affected
  dsa · libreoffice · debian · bookworm
- 4:7.4.7-1+deb12u13 · amd64 · bookworm-security
  Not affected
  dsa · libreoffice · debian · bookworm
- 4:7.4.7-1+deb12u13 · arm64 · bookworm-security
  Not affected
  dsa · libreoffice · debian · bookworm
[libreoffice-common]Unknown
Source package: [libreoffice]
Details (6)
- 4:7.4.7-1+deb12u14 · all · bookworm
  Not affected
  dsa · libreoffice · debian · bookworm
- 4:7.4.7-1+deb12u14 · all · bookworm
  Not affected
  dsa · libreoffice · debian · bookworm
- 4:25.2.3-2+deb13u5~bpo12+1 · all · bookworm-backports
  Not affected
  dsa · libreoffice · debian · bookworm
- 4:25.2.3-2+deb13u5~bpo12+1 · all · bookworm-backports
  Not affected
  dsa · libreoffice · debian · bookworm
- 4:7.4.7-1+deb12u13 · all · bookworm-security
  Not affected
  dsa · libreoffice · debian · bookworm
- 4:7.4.7-1+deb12u13 · all · bookworm-security
  Not affected
  dsa · libreoffice · debian · bookworm
[libreoffice-core]Unknown
Source package: [libreoffice]
Details (6)
- 4:7.4.7-1+deb12u14 · amd64 · bookworm
  Not affected
  dsa · libreoffice · debian · bookworm
- 4:7.4.7-1+deb12u14 · arm64 · bookworm
  Not affected
  dsa · libreoffice · debian · bookworm
- 4:25.2.3-2+deb13u5~bpo12+1 · amd64 · bookworm-backports
  Not affected
  dsa · libreoffice · debian · bookworm
- 4:25.2.3-2+deb13u5~bpo12+1 · arm64 · bookworm-backports
  Not affected
  dsa · libreoffice · debian · bookworm
- 4:7.4.7-1+deb12u13 · amd64 · bookworm-security
  Not affected
  dsa · libreoffice · debian · bookworm
- 4:7.4.7-1+deb12u13 · arm64 · bookworm-security
  Not affected
  dsa · libreoffice · debian · bookworm
[libreoffice-core-nogui]Unknown
Source package: [libreoffice]
Details (6)
- 4:7.4.7-1+deb12u14 · amd64 · bookworm
  Not affected
  dsa · libreoffice · debian · bookworm
- 4:7.4.7-1+deb12u14 · arm64 · bookworm
  Not affected
  dsa · libreoffice · debian · bookworm
- 4:25.2.3-2+deb13u5~bpo12+1 · amd64 · bookworm-backports
  Not affected
  dsa · libreoffice · debian · bookworm
- 4:25.2.3-2+deb13u5~bpo12+1 · arm64 · bookworm-backports
  Not affected
  dsa · libreoffice · debian · bookworm
- 4:7.4.7-1+deb12u13 · amd64 · bookworm-security
  Not affected
  dsa · libreoffice · debian · bookworm
- 4:7.4.7-1+deb12u13 · arm64 · bookworm-security
  Not affected
  dsa · libreoffice · debian · bookworm
[libreoffice-dev]Unknown
Source package: [libreoffice]
Details (6)
- 4:7.4.7-1+deb12u14 · amd64 · bookworm
  Not affected
  dsa · libreoffice · debian · bookworm
- 4:7.4.7-1+deb12u14 · arm64 · bookworm
  Not affected
  dsa · libreoffice · debian · bookworm
- 4:25.2.3-2+deb13u5~bpo12+1 · amd64 · bookworm-backports
  Not affected
  dsa · libreoffice · debian · bookworm
- 4:25.2.3-2+deb13u5~bpo12+1 · arm64 · bookworm-backports
  Not affected
  dsa · libreoffice · debian · bookworm
- 4:7.4.7-1+deb12u13 · amd64 · bookworm-security
  Not affected
  dsa · libreoffice · debian · bookworm
- 4:7.4.7-1+deb12u13 · arm64 · bookworm-security
  Not affected
  dsa · libreoffice · debian · bookworm
[libreoffice-dev-common]Unknown
Source package: [libreoffice]
Details (6)
- 4:7.4.7-1+deb12u14 · all · bookworm
  Not affected
  dsa · libreoffice · debian · bookworm
- 4:7.4.7-1+deb12u14 · all · bookworm
  Not affected
  dsa · libreoffice · debian · bookworm
- 4:25.2.3-2+deb13u5~bpo12+1 · all · bookworm-backports
  Not affected
  dsa · libreoffice · debian · bookworm
- 4:25.2.3-2+deb13u5~bpo12+1 · all · bookworm-backports
  Not affected
  dsa · libreoffice · debian · bookworm
- 4:7.4.7-1+deb12u13 · all · bookworm-security
  Not affected
  dsa · libreoffice · debian · bookworm
- 4:7.4.7-1+deb12u13 · all · bookworm-security
  Not affected
  dsa · libreoffice · debian · bookworm
[libreoffice-dev-doc]Unknown
Source package: [libreoffice]
Details (6)
- 4:7.4.7-1+deb12u14 · all · bookworm
  Not affected
  dsa · libreoffice · debian · bookworm
- 4:7.4.7-1+deb12u14 · all · bookworm
  Not affected
  dsa · libreoffice · debian · bookworm
- 4:25.2.3-2+deb13u5~bpo12+1 · all · bookworm-backports
  Not affected
  dsa · libreoffice · debian · bookworm
- 4:25.2.3-2+deb13u5~bpo12+1 · all · bookworm-backports
  Not affected
  dsa · libreoffice · debian · bookworm
- 4:7.4.7-1+deb12u13 · all · bookworm-security
  Not affected
  dsa · libreoffice · debian · bookworm
- 4:7.4.7-1+deb12u13 · all · bookworm-security
  Not affected
  dsa · libreoffice · debian · bookworm
[libreoffice-dev-gui]Unknown
Source package: [libreoffice]
Details (6)
- 4:7.4.7-1+deb12u14 · amd64 · bookworm
  Not affected
  dsa · libreoffice · debian · bookworm
- 4:7.4.7-1+deb12u14 · arm64 · bookworm
  Not affected
  dsa · libreoffice · debian · bookworm
- 4:25.2.3-2+deb13u5~bpo12+1 · amd64 · bookworm-backports
  Not affected
  dsa · libreoffice · debian · bookworm
- 4:25.2.3-2+deb13u5~bpo12+1 · arm64 · bookworm-backports
  Not affected
  dsa · libreoffice · debian · bookworm
- 4:7.4.7-1+deb12u13 · amd64 · bookworm-security
  Not affected
  dsa · libreoffice · debian · bookworm
- 4:7.4.7-1+deb12u13 · arm64 · bookworm-security
  Not affected
  dsa · libreoffice · debian · bookworm
[libreoffice-draw]Unknown
Source package: [libreoffice]
Details (6)
- 4:7.4.7-1+deb12u14 · amd64 · bookworm
  Not affected
  dsa · libreoffice · debian · bookworm
- 4:7.4.7-1+deb12u14 · arm64 · bookworm
  Not affected
  dsa · libreoffice · debian · bookworm
- 4:25.2.3-2+deb13u5~bpo12+1 · amd64 · bookworm-backports
  Not affected
  dsa · libreoffice · debian · bookworm
- 4:25.2.3-2+deb13u5~bpo12+1 · arm64 · bookworm-backports
  Not affected
  dsa · libreoffice · debian · bookworm
- 4:7.4.7-1+deb12u13 · amd64 · bookworm-security
  Not affected
  dsa · libreoffice · debian · bookworm
- 4:7.4.7-1+deb12u13 · arm64 · bookworm-security
  Not affected
  dsa · libreoffice · debian · bookworm

Next results

Observed: Oct 23, 2026, 5:55:09 PM UTC

References

[Debian Security Tracker] · [FIRST EPSS] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX]