7.5

CVE-2021-25636: fedoraproject fedora

CVSS: 7.5v3.1HighModified
AliasesSUSE-SU-2022:0886-1SUSE-SU-2022:1093-1RHSA-2022:7461
Published 22-02-2022Last modified 03-08-2024

Vulnerability summary

CVE-2021-25636 is a high (CVSS 7.5) vulnerability in fedoraproject fedora. EPSS estimates a 0.95% chance of exploitation in the next 30 days, higher than 60.7% of scored vulnerabilities.

Overall risk
30/100
0100
Medium · default modelHow is this calculated?
CVSS score
7.5/10
010
High · v3.1 (NVD)
EPSS score
0.95%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 1

Timeline

  1. 22-02-2022
    PublishedVulnerability first disclosed.
  2. 03-08-2024
    Last modifiedVulnerability information updated.

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 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.

CVSS metrics

5 scores · 4 sources · 2 versions

EPSS trend

Probability

0.95%

Chance of exploitation in the next 30 days

Percentile

61%

Versus all other CVEs

30-day change

0.00 pp

From 0.95% on 19-09-2026

19-09-202619-10-2026
EPSS score
0.95%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Redhat191 products
  • autocorr-af< 1:6.4.7.2-11.el8
  • autocorr-bg< 1:6.4.7.2-11.el8
  • autocorr-ca< 1:6.4.7.2-11.el8
  • autocorr-cs< 1:6.4.7.2-11.el8
  • autocorr-da< 1:6.4.7.2-11.el8
Suse4 products
  • libreoffice&distro=SUSE Linux Enterprise Module for Package Hub 15 SP3< 7.2.5.1-150300.14.22.18.3
  • libreoffice&distro=SUSE Linux Enterprise Software Development Kit 12 SP5< 7.2.5.1-48.19.4
  • libreoffice&distro=SUSE Linux Enterprise Workstation Extension 12 SP5< 7.2.5.1-48.19.4
  • libreoffice&distro=SUSE Linux Enterprise Workstation Extension 15 SP3< 7.2.5.1-150300.14.22.18.3
Debian1 product
  • libreoffice< 1:7.3.0-1
Fedoraproject1 product
Libreoffice1 product
Opensuse1 product
  • libreoffice&distro=openSUSE Leap 15.3< 7.2.5.1-150300.14.22.18.3
Ubuntu1 product
  • libreoffice< 1:6.0.7-0ubuntu0.18.04.11 | < 1:6.4.7-0ubuntu0.20.04.4

7 vendors · 200 products · Showing 200 of 201. Use Open JSON for the complete list.

References

21 links
Show all 21 references