remote graphics contained in docx format retrieved in 'stealth mode'
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Information disclosure
- Confidentiality · integrity · availability
- Low · None · None
- Fix status
- Partial Red Hat: 2 fixed, 2 without a fix
Attack profile from CVSS 3.1 · NVD. Fix status from CNA and Red Hat. Impact type from CWE-200.
Summary
LibreOffice has a 'stealth mode' in which only documents from locations deemed 'trusted' are allowed to retrieve remote resources. This mode is not the default mode, but can be enabled by users who want to disable LibreOffice's ability to include remote resources within a document. A flaw existed where remote graphic links loaded from docx documents were omitted from this protection prior to version 6.4.4. This issue affects: The Document Foundation LibreOffice versions prior to 6.4.4.
Why it matters now
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 | before 6.4.4 | 6.4.4 | Patch available | CNA |
- LibreOffice VendorThe Document Foundation Affected before 6.4.4 Fixed in 6.4.4 Patch available CNA
CPE configurations NVD · 4
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:libreoffice:libreoffice:*:*:*:*:*:*:*:* | before 6.4.4 | Vulnerable | The Document Foundation |
| cpe:2.3:o:fedoraproject:fedora:31:*:*:*:*:*:*:* | 31 | Vulnerable | Fedoraproject |
| cpe:2.3:o:opensuse:leap:15.1:*:*:*:*:*:*:* | 15.1 | Vulnerable | openSUSE |
| cpe:2.3:o:opensuse:leap:15.2:*:*:*:*:*:*:* | 15.2 | Vulnerable | openSUSE |
- cpe:2.3:a:libreoffice:libreoffice:*:*:*:*:*:*:*:* Versions before 6.4.4 Vulnerable ·The Document Foundation
- cpe:2.3:o:fedoraproject:fedora:31:*:*:*:*:*:*:* Versions 31 Vulnerable ·Fedoraproject
- cpe:2.3:o:opensuse:leap:15.1:*:*:*:*:*:*:* Versions 15.1 Vulnerable ·openSUSE
- cpe:2.3:o:opensuse:leap:15.2:*:*:*:*:*:*:* Versions 15.2 Vulnerable ·openSUSE
Remediation
- Fix · CNA LibreOffice (The Document Foundation) Fixed in 6.4.4
Red Hat 1 advisory
- RHSA-2020:4628 Released 2020-11-04 · Red Hat rating Lowlibreoffice security, bug fix, and enhancement update
- Red Hat CodeReady Linux Builder (v. 8) libreoffice-sdk-1:6.3.6.2-3.el8, libreoffice-sdk-doc-1:6.3.6.2-3.el8
- Red Hat Enterprise Linux AppStream (v. 8) autocorr-af-1:6.3.6.2-3.el8, autocorr-bg-1:6.3.6.2-3.el8, autocorr-ca-1:6.3.6.2-3.el8 +47
Fixed in the same release
Records fixed by the same vendor advisory or release, as the CNA lists them.
- Advisory ·
The Document Foundation LibreOffice — openSUSE-SU-2020:1222
2 records Highest priority Priority LOW 2 LOW
Other records, highest priority first
- TI-2020-10180 XForms submissions could overwrite local filesPriority LOW 32
- Advisory ·
The Document Foundation LibreOffice — openSUSE-SU-2020:1261
2 records Highest priority Priority LOW 2 LOW
Other records, highest priority first
- TI-2020-10180 XForms submissions could overwrite local filesPriority LOW 32
Show 1 more group
- Advisory ·
The Document Foundation LibreOffice — FEDORA-2020-8922773bc4
2 records Highest priority Priority LOW 2 LOW
Other records, highest priority first
- TI-2020-10180 XForms submissions could overwrite local filesPriority LOW 32
Vendor assessments
Red Hat
Red Hat rating: Low. 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 yet: Fix deferred |
| Red Hat CodeReady Linux Builder (v. 8) | Fixed | RHSA-2020:4628 |
| Red Hat Enterprise Linux AppStream (v. 8) | Fixed | RHSA-2020:4628 |
Timeline
- 2026-10-02 Threatist record created from CVE-2020-12802
- 2026-10-03 Alias added: GHSA-r3c7-2c6p-8qmc
References
More The Document Foundation Libreoffice vulnerabilities
- 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
Sources
- CVE-2020-12802 · CVE Program
- CVE-2020-12802 · NVD
- FIRST EPSS
- GHSA-r3c7-2c6p-8qmc · GitHub Advisory Database · CC BY 4.0
- CVE-2020-12802 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences