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CVE-2019-9852

Status Candidate

Overview

LibreOffice has a feature where documents can specify that pre-installed macros can be executed on various script events such as mouse-over, document-open etc. Access is intended to be restricted to scripts under the share/Scripts/python, user/Scripts/python sub-directories of the LibreOffice install. Protection was added, to address CVE-2018-16858, to avoid a directory traversal attack where scripts in arbitrary locations on the file system could be executed. However this new protection could be bypassed by a URL encoding attack. In the fixed versions, the parsed url describing the script location is correctly encoded before further processing. This issue affects: Document Foundation LibreOffice versions prior to 6.2.6.

Related Files

Red Hat Security Advisory 2020-1598-01
Posted Apr 28, 2020
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2020-1598-01 - 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 a script execution vulnerability.

tags | advisory
systems | linux, redhat
advisories | CVE-2019-9849, CVE-2019-9850, CVE-2019-9851, CVE-2019-9852, CVE-2019-9853, CVE-2019-9854
SHA-256 | 755181ebd926d493153175d1e4d42bb9e1c8a5b1a42bf0d55491029ddcc901af
Red Hat Security Advisory 2020-1151-01
Posted Apr 1, 2020
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2020-1151-01 - 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 code execution and script execution vulnerabilities.

tags | advisory, vulnerability, code execution
systems | linux, redhat
advisories | CVE-2019-9848, CVE-2019-9849, CVE-2019-9850, CVE-2019-9851, CVE-2019-9852, CVE-2019-9853, CVE-2019-9854
SHA-256 | 145184bdec8feb94e483fddfa0200c2069b777342feddd59c9da24d012ba93d3
Ubuntu Security Notice USN-4102-1
Posted Aug 19, 2019
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 4102-1 - It was discovered that LibreOffice incorrectly handled LibreLogo scripts. If a user were tricked into opening a specially crafted document, a remote attacker could cause LibreOffice to execute arbitrary code. It was discovered that LibreOffice incorrectly handled embedded scripts in document files. If a user were tricked into opening a specially crafted document, a remote attacker could possibly execute arbitrary code. Various other issues were also addressed.

tags | advisory, remote, arbitrary
systems | linux, ubuntu
advisories | CVE-2019-9850, CVE-2019-9851, CVE-2019-9852
SHA-256 | 983c53a971616e6b47ea1521934e1bf73200bdcdf63393f64dea2636a3248a03
Debian Security Advisory 4501-1
Posted Aug 16, 2019
Authored by Debian | Site debian.org

Debian Linux Security Advisory 4501-1 - It was discovered that the code fixes to address CVE-2018-16858 and CVE-2019-9848 were not complete.

tags | advisory
systems | linux, debian
advisories | CVE-2019-9850, CVE-2019-9851, CVE-2019-9852
SHA-256 | b1a0eaddf92486a85efc067afd30570eda06e7c0aa837fa5deff08842a519b3f
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