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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

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
MD5 | 654041ef4af81c243100051b9692a9c1
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
MD5 | 2f494ed81876da4980a4886bf4a0cbad
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