CVE-2019-9852
Insufficient URL encoding flaw in allowed script location check
- State
- Published
- Severity
- Not scored
- Published
- Aug 15, 2019
- Updated
- Sep 17, 2024
- Reserved
- Mar 17, 2019
Description
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.
Scores
The record has no CVSS score.
Weaknesses
- CWE-116 Improper Encoding or Escaping of Output
Affected Products
| Product | Versions |
|---|---|
LibreOfficeDocument Foundation |
|
References
- https://www.libreoffice.org/about-us/security/advisories/CVE-2019-9852
- 20190815 [SECURITY] [DSA 4501-1] libreoffice security updatemailing-list
- DSA-4501vendor-advisory
- FEDORA-2019-2fe22a3a2cvendor-advisory
- USN-4102-1vendor-advisory
- openSUSE-SU-2019:2057vendor-advisory
- 20190910 [SECURITY] [DSA 4519-1] libreoffice security updatemailing-list
- openSUSE-SU-2019:2183vendor-advisory
- [debian-lts-announce] 20191006 [SECURITY] [DLA 1947-1] libreoffice security updatemailing-list
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