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.
Analysis and contextual insights are available on OpenCVE Cloud.
No vendor fix or workaround currently provided.
Additional remediation guidance may be available on OpenCVE Cloud.
Tracking
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| Source | ID | Title |
|---|---|---|
EUVD |
EUVD-2021-12531 | 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. |
Wed, 10 Dec 2025 19:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| First Time appeared |
Libreoffice
Libreoffice libreoffice |
|
| CPEs | cpe:2.3:a:libreoffice:libreoffice:*:*:*:*:*:*:*:* | |
| Vendors & Products |
Libreoffice
Libreoffice libreoffice |
|
| Metrics |
cvssV3_1
|
cvssV3_1
|
Fri, 21 Mar 2025 16:15:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Metrics |
ssvc
|
Fri, 21 Mar 2025 15:00:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | A flaw was found in LibreOffice, where it improperly validated signatures for algorithms that were not verified. This flaw leads to LibreOffice presenting a valid signature when the validity of the signature was not verified. The highest threat from this vulnerability is to confidentiality and integrity. | 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. |
| Title | libreoffice: Content Manipulation with Certificate Validation Attack | Content Manipulation with Certificate Validation Attack |
| Metrics |
cvssV4_0
|
Status: PUBLISHED
Assigner: Document Fdn.
Published:
Updated: 2025-03-21T15:13:24.100Z
Reserved: 2021-01-19T22:48:43.994Z
Link: CVE-2021-25635
Updated: 2025-03-21T15:13:15.453Z
Status : Analyzed
Published: 2025-03-21T15:15:35.707
Modified: 2025-12-10T19:18:58.750
Link: CVE-2021-25635
OpenCVE Enrichment
No data.
EUVD