CVE-2021-25634
CVSS V2 Medium 5
CVSS V3 High 7.5
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 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.
Overview
- CVE ID
- CVE-2021-25634
- Assigner
- security@documentfoundation.org
- Vulnerability Status
- Analyzed
- Published Version
- 2021-10-12T14:15:08
- Last Modified Date
- 2021-10-18T19:29:46
Weakness Enumerations
CPE Configuration (Product)
| CPE | Vulnerable | Operator | Version Start | Version End |
|---|---|---|---|---|
| cpe:2.3:a:libreoffice:libreoffice:*:*:*:*:*:*:*:* | 1 | OR | 7.0.0 | 7.0.6 |
| cpe:2.3:a:libreoffice:libreoffice:*:*:*:*:*:*:*:* | 1 | OR | 7.1.0 | 7.1.2 |
| cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:* | 1 | OR |
CVSS Version 2
- Version
- 2.0
- Vector String
- AV:N/AC:L/Au:N/C:N/I:P/A:N
- Access Vector
- NETWORK
- Access Compatibility
- LOW
- Authentication
- NONE
- Confidentiality Impact
- NONE
- Integrity Impact
- PARTIAL
- Availability Impact
- NONE
- Base Score
- 5
- Severity
- MEDIUM
- Exploitability Score
- 10
- Impact Score
- 2.9
CVSS Version 3
- Version
- 3.1
- Vector String
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
- Attack Vector
- NETWORK
- Attack Compatibility
- LOW
- Privileges Required
- NONE
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality Impact
- NONE
- Availability Impact
- NONE
- Base Score
- 7.5
- Base Severity
- HIGH
- Exploitability Score
- 3.9
- Impact Score
- 3.6
References
| Reference URL | Reference Tags |
|---|---|
| https://www.libreoffice.org/about-us/security/advisories/CVE-2021-25634 | Vendor Advisory |
| https://www.debian.org/security/2021/dsa-4988 | Third Party Advisory |
Sources
| Source Name | Source URL |
|---|---|
| NIST | https://nvd.nist.gov/vuln/detail/CVE-2021-25634 |
| MITRE | https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-25634 |
History
| Created | Old Value | New Value | Data Type | Notes |
|---|---|---|---|---|
| 2022-05-10 06:51:16 | Added to TrackCVE | |||
| 2022-12-05 12:14:01 | 2021-10-12T14:15Z | 2021-10-12T14:15:08 | CVE Published Date | updated |
| 2022-12-05 12:14:01 | 2021-10-18T19:29:46 | CVE Modified Date | updated | |
| 2022-12-05 12:14:01 | Analyzed | Vulnerability Status | updated |