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CVE-2020-12803

Status Candidate

Overview

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.

Related Files

Ubuntu Security Notice USN-5694-1
Posted Oct 21, 2022
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 5694-1 - It was discovered that LibreOffice incorrectly handled links using the Office URI Schemes. If a user were tricked into opening a specially crafted document, a remote attacker could use this issue to execute arbitrary scripts. Thomas Florian discovered that LibreOffice incorrectly handled crashes when an encrypted document is open. If the document is recovered upon restarting LibreOffice, subsequent saves of the document were unencrypted. This issue only affected Ubuntu 18.04 LTS.

tags | advisory, remote, arbitrary
systems | linux, ubuntu
advisories | CVE-2020-12801, CVE-2020-12803, CVE-2022-26305, CVE-2022-26307, CVE-2022-3140
SHA-256 | 0bfca49ec96a675f9fdc98cc5d20bf84d67e53ae9d83294020076b54ccbe6033
Red Hat Security Advisory 2020-4628-01
Posted Nov 4, 2020
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2020-4628-01 - LibreOffice is an open source, community-developed office productivity suite. It includes key desktop applications, such as a word processor, a spreadsheet, a presentation manager, a formula editor, and a drawing program. LibreOffice replaces OpenOffice and provides a similar but enhanced and extended office suite. Issues addressed include bypass and file overwrite vulnerabilities.

tags | advisory, vulnerability
systems | linux, redhat
advisories | CVE-2020-12802, CVE-2020-12803
SHA-256 | 830b0f6123cec4cfe35b47bd6e505c4ffa3a3b74015c30bb57b5aa0e9a1560a8
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