CVE-2020-12803 Information

Description

ODF documents can contain forms to be filled out by the user. Similar to HTML forms the contained form data can be submitted to a URI for example to an external web server. To create submittable forms ODF implements the XForms W3C standard which allows data to be submitted without the need for macros or other active scripting Prior to version 6.4.4 LibreOffice allowed forms to be submitted to any URI including file: URIs enabling form submissions to overwrite local files. User-interaction is required to submit the form but to avoid the possibility of malicious documents engineered to maximize the possibility of inadvertent user submission this feature has now been limited to http[s] URIs removing the possibility to overwrite local files. This issue affects: The Document Foundation LibreOffice versions prior to 6.4.4.

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N

Reference

http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00042.html http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00058.html https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/PQIBAKXD7VO5IGBD7ZMH3GGBNR5R2IOA/ https://www.libreoffice.org/about-us/security/advisories/CVE-2020-12803

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

REQUIRED

Confidentiality Impact

UNCHANGED

Integrity Impact

NONE

Availability Impact

HIGH

Base Score

NONE

Base Severity

6.5