Vulnerability · Published Jun 8, 2020 · Assigned by Document Fdn.
CVE-2020-12802remote graphics contained in docx format retrieved in 'stealth mode'
Medium 5.3
In plain English
A medium-severity information exposure in LibreOffice from The Document Foundation. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 2.0% (higher than 81% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Official description
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.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| AlmaLinux:8 | libcmis | 0.5.2-1.el8 | ALSA-2020:4628 |
| AlmaLinux:8 | libreoffice-sdk | 1:6.3.6.2-3.el8.alma | ALSA-2020:4628 |
| AlmaLinux:8 | libreoffice-sdk-doc | 1:6.3.6.2-3.el8.alma | ALSA-2020:4628 |
| Alpine:v3.20 | libreoffice | 6.4.4.2-r0 | ALPINE-CVE-2020-12802 |
| Alpine:v3.21 | libreoffice | 6.4.4.2-r0 | ALPINE-CVE-2020-12802 |
| Alpine:v3.22 | libreoffice | 6.4.4.2-r0 | ALPINE-CVE-2020-12802 |
| Alpine:v3.23 | libreoffice | 6.4.4.2-r0 | ALPINE-CVE-2020-12802 |
| Alpine:v3.24 | libreoffice | 6.4.4.2-r0 | ALPINE-CVE-2020-12802 |
| Debian:12 | libreoffice | 1:6.4.4-1 | DEBIAN-CVE-2020-12802 |
| Debian:13 | libreoffice | 1:6.4.4-1 | DEBIAN-CVE-2020-12802 |
| Debian:14 | libreoffice | 1:6.4.4-1 | DEBIAN-CVE-2020-12802 |
| Rocky Linux:8 | libcmis | 0:0.5.2-1.el8 | RLSA-2020:4628 |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| The Document Foundation | LibreOffice | unspecified – before 6.4.4 |
Weakness: CWE-200
References
- https://www.libreoffice.org/about-us/security/advisories/CVE-2020-12802
- FEDORA-2020-8922773bc4 vendor-advisory
- openSUSE-SU-2020:1222 vendor-advisory
- openSUSE-SU-2020:1261 vendor-advisory
- [debian-lts-announce] 20231231 [SECURITY] [DLA 3703-1] libreoffice security update mailing-list