TI-2021-07772 Aliases CVE-2021-25636 GHSA-3cgr-wxhv-h7xw

Incorrect trust validation of signature with ambiguous KeyInfo children

LOW 35CWE-347Published 2022-02-22 · Updated 2024-08-03

Key facts

Attack vector: Network
Privileges required: None
User interaction: None
Attack complexity: Low
Impact type: Security bypass, Spoofing
Confidentiality · integrity · availability: None · High · None
Fix status: Partial Red Hat: 2 fixed, 4 without a fix

Attack profile from CVSS 3.1 · NVD. Fix status from CNA and Red Hat. Impact type from CWE-347 and 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 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.

Why it matters now

EPSS 0.00954 61st percentileScored 2026-11-07

Fix Partial LibreOffice (The Document Foundation): 7.2.5Red Hat: 1 advisoryRed Hat: 2 fixed, 4 without a fix

SSVC decision points

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

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
The Document Foundation	LibreOffice	7.2 to before 7.2.5	7.2.5	Patch available	CNA

LibreOffice VendorThe Document Foundation Affected 7.2 to before 7.2.5 Fixed in 7.2.5 Patch available CNA

CPE configurations NVD · 2

CPE	Versions	Role	Vendor
cpe:2.3:a:libreoffice:libreoffice::::::::	7.2.0 to before 7.2.5	Vulnerable	The Document Foundation
cpe:2.3:o:fedoraproject:fedora:34:::::::*	34	Vulnerable	Fedoraproject

cpe:2.3:a:libreoffice:libreoffice:*:*:*:*:*:*:*:* Versions 7.2.0 to before 7.2.5 Vulnerable ·The Document Foundation
cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:* Versions 34 Vulnerable ·Fedoraproject

Remediation

Fix · CNA LibreOffice (The Document Foundation) Fixed in 7.2.5

Red Hat 1 advisory

RHSA-2022:7461 Released 2022-11-08 · Red Hat rating Moderate
libreoffice security update
- Red Hat CodeReady Linux Builder (v. 8) libreoffice-sdk-1:6.4.7.2-11.el8, libreoffice-sdk-doc-1:6.4.7.2-11.el8
- Red Hat Enterprise Linux AppStream (v. 8) 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 +47

Vendor assessments

Red Hat

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

Product	Status	Plan or fix
Red Hat Enterprise Linux 6	Affected	No fix planned: Out of support scope
Red Hat Enterprise Linux 7	Affected	No fix planned: Out of support scope
Red Hat Enterprise Linux 8	Affected	No fix planned: Will not fix
Red Hat Enterprise Linux 9	Affected	No fix yet
Red Hat CodeReady Linux Builder (v. 8)	Fixed	RHSA-2022:7461
Red Hat Enterprise Linux AppStream (v. 8)	Fixed	RHSA-2022:7461

Timeline

2026-10-02 Threatist record created from CVE-2021-25636
2026-10-03 Alias added: GHSA-3cgr-wxhv-h7xw

References

Advisory 2

Other 1

[debian-lts-announce] 20230326 [SECURITY] [DLA 3368-1] libreoffice security update

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