LibreOffice has a feature where documents can specify that pre-installed scripts can be executed on various document events such as mouse-over, etc. LibreOffice is typically also bundled with LibreLogo, a programmable turtle vector graphics script, which can be manipulated into executing arbitrary python commands. By using the document event feature to trigger LibreLogo to execute python contained within a document a malicious document could be constructed which would execute arbitrary python commands silently without warning. In the fixed versions, LibreLogo cannot be called from a document event handler. This issue affects: Document Foundation LibreOffice versions prior to 6.2.5.
Source: https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-9848
Reference (s):
- BID:109374
- URL: http://www.securityfocus.com/bid/109374
- BUGTRAQ:20190815 [SECURITY] [DSA 4501-1] libreoffice security update
- URL: https://seclists.org/bugtraq/2019/Aug/28
- https://www.libreoffice.org/about-us/security/advisories/CVE-2019-9848