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TI-2021-07770 Aliases CVE-2021-25634GHSA-v4mw-2fgp-8j6c

Timestamp Manipulation with Signature Wrapping

Priority LOW 34CWE-295Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Spoofing
Confidentiality · integrity · availability
None · High · None
Fix status
Partial Red Hat: 2 fixed, 3 without a fix

Attack profile from CVSS 3.1 · NVD. Fix status from CNA and Red Hat. Impact type from CWE-295.

Summary

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 modify a digitally signed ODF document to insert an additional signing time timestamp which LibreOffice would incorrectly present as a valid signature signed at the bogus signing time. This issue affects: The Document Foundation LibreOffice 7-0 versions prior to 7.0.6; 7-1 versions prior to 7.1.2.

Why it matters now

EPSS 0.00708 53rd percentileScored 2026-11-07
Fix Partial LibreOffice (The Document Foundation): 7.0.6, 7.1.2Red Hat: 1 advisoryRed Hat: 2 fixed, 3 without a fix

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
The Document FoundationLibreOffice7-0 to before 7.0.6; 7-1 to before 7.1.27.0.6, 7.1.2Patch availableCNA
  • LibreOffice VendorThe Document Foundation Affected 7-0 to before 7.0.6; 7-1 to before 7.1.2 Fixed in 7.0.6, 7.1.2 Patch available CNA

CPE configurations NVD · 2

CPEVersionsRoleVendor
cpe:2.3:a:libreoffice:libreoffice:*:*:*:*:*:*:*:*7.0.0 to before 7.0.6; 7.1.0 to before 7.1.2VulnerableThe Document Foundation
cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*11.0VulnerableDebian
  • cpe:2.3:a:libreoffice:libreoffice:*:*:*:*:*:*:*:* Versions 7.0.0 to before 7.0.6; 7.1.0 to before 7.1.2 Vulnerable ·The Document Foundation
  • cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:* Versions 11.0 Vulnerable ·Debian

Remediation

  • Fix · CNA LibreOffice (The Document Foundation) Fixed in 7.0.6, 7.1.2

Red Hat 1 advisory

  • RHSA-2022:1766 Released 2022-05-10 · Red Hat rating Moderate
    libreoffice security, bug fix, and enhancement update
    • Red Hat Enterprise Linux AppStream (v. 8) autocorr-af-1:6.4.7.2-10.el8, autocorr-bg-1:6.4.7.2-10.el8, autocorr-ca-1:6.4.7.2-10.el8 +47
    • Red Hat Enterprise Linux CRB (v. 8) libreoffice-sdk-1:6.4.7.2-10.el8, libreoffice-sdk-doc-1:6.4.7.2-10.el8

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

  • Advisory ·

    The Document Foundation LibreOffice — DSA-4988

    2 records Highest priority Priority LOW 2 LOW

    Other records, highest priority first

    • TI-2021-07769 Content Manipulation with Double Certificate AttackPriority LOW 34
    Show all 2 records → Advisory →

Vendor assessments

Red Hat

Red Hat rating: Moderate. Red Hat's page for this CVE →

ProductStatusPlan or fix
Red Hat Enterprise Linux 6AffectedNo fix planned: Out of support scope
Red Hat Enterprise Linux 7AffectedNo fix planned: Out of support scope
Red Hat Enterprise Linux 8AffectedNo fix planned: Will not fix
Red Hat Enterprise Linux AppStream (v. 8)Fixed RHSA-2022:1766
Red Hat Enterprise Linux CRB (v. 8)Fixed RHSA-2022:1766
Not affected: 1 product
  • Red Hat Enterprise Linux 9

Timeline

  1. 2026-10-02 Threatist record created from CVE-2021-25634
  2. 2026-10-03 Alias added: GHSA-v4mw-2fgp-8j6c

References

Advisory 2

  • TI-2019-07233 LibreLogo global-event script execution CVSS 3.1CRITICAL 9.8
  • TI-2018-12068 Path traversal in [UNKNOWN] libreoffice CVSS 3.0CRITICAL 9.8
  • TI-2018-07474 An information disclosure vulnerability occurs when LibreOffice 6.0.3 and Apache… CVSS 3.0HIGH 7.5
  • TI-2019-07230 Code injection in Document Foundation LibreOffice CVSS 3.1CRITICAL 9.8
  • TI-2018-05018 LibreOffice before 5.4.5 and 6.x before 6.0.1 allows remote attackers to read arbitrary… CVSS 3.0CRITICAL 9.8
  • TI-2023-01118 Arbitrary file write in libreoffice CVSS 3.1MEDIUM 5.5
See all 70 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences