Detections
Analytics
CVE-2019-9852
high
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.
References
https://www.debian.org/security/2019/dsa-4501
https://usn.ubuntu.com/4102-1/
https://seclists.org/bugtraq/2019/Sep/17
https://seclists.org/bugtraq/2019/Aug/28
https://lists.debian.org/debian-lts-announce/2019/10/msg00005.html
http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00067.html
http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00006.html