CVE-2019-9848: Canonical Ubuntu Linux

Critical severity, CVSS 9.8. EPSS: 28.9% chance of exploitation in the next 30 days.

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.

Affected products

• Canonical Ubuntu Linux: version 16.04 only; version 18.04 only; version 19.04 only
• Debian Debian Linux: version 8.0 only
• Fedoraproject Fedora: version 29 only; version 30 only
• Libreoffice Libreoffice: before 6.2.5 (fixed in 6.2.5)
• Opensuse Leap: version 15.0 only; version 15.1 only

Published 2019-07-17. Last modified 2026-06-17.