CVE-2019-9848 : Security Advisory and Response

A vulnerability in LibreOffice versions prior to 6.2.5 allows the execution of arbitrary Python commands through the LibreLogo script. This issue was discovered by Nils Emmerich of ERNW Research GmbH.

Understanding CVE-2019-9848

What is CVE-2019-9848?

LibreOffice's feature allows the execution of pre-installed scripts, such as LibreLogo, during document events, enabling the execution of Python commands.

The Impact of CVE-2019-9848

This vulnerability could lead to the creation of malicious documents that execute Python commands without warning.

Technical Details of CVE-2019-9848

Vulnerability Description

LibreOffice versions prior to 6.2.5 allow the execution of arbitrary Python commands through LibreLogo.

Affected Systems and Versions

Product: LibreOffice
Vendor: Document Foundation
Versions Affected: < 6.2.5

Exploitation Mechanism

Attackers can trigger LibreLogo to execute Python commands embedded within a document, leading to arbitrary command execution.

Mitigation and Prevention

Immediate Steps to Take

Update LibreOffice to version 6.2.5 or later to prevent the execution of arbitrary Python commands.

Long-Term Security Practices

Avoid opening documents from untrusted sources.
Regularly update software to patch known vulnerabilities.
Educate users on safe document handling practices.

Patching and Updates

Apply security updates provided by LibreOffice to mitigate this vulnerability.