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CVE-2019-9850

9.8 · CRITICAL

LibreOffice is typically bundled with LibreLogo, a programmable turtle vector graphics script, which can execute arbitrary python commands contained with the document it is launched from.

Published Aug 15, 2019CWE-20EPSS 2.93%

Overview

CVE-2019-9850 is a critical-severity vulnerability. It was published on August 15, 2019 and has a CVSS 3.1 base score of 9.8 (CRITICAL).

This vulnerability has a CVSS 3.1 base score of 9.8, rated CRITICAL. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical description

LibreOffice is typically bundled with LibreLogo, a programmable turtle vector graphics script, which can execute arbitrary python commands contained with the document it is launched from. LibreOffice also has a feature where documents can specify that pre-installed scripts can be executed on various document script events such as mouse-over, etc. Protection was added, to address CVE-2019-9848, to block calling LibreLogo from script event handers. However an insufficient url validation vulnerability in LibreOffice allowed malicious to bypass that protection and again trigger calling LibreLogo from script event handlers. This issue affects: Document Foundation LibreOffice versions prior to 6.2.6.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

Reflists.opensuse.org/opensuse-security-announce/2019-09/msg00006.htmlReflists.opensuse.org/opensuse-security-announce/2019-09/msg00067.htmlReflists.debian.org/debian-lts-announce/2019/10/msg00005.htmlReflists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PMEGUWMWORC3DOVEHVXLFT3A5RSCMLBH/Reflists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/WVSDPZJG3UA43X3JXRHJAWXLDZEW77LM/Refseclists.org/bugtraq/2019/Aug/28Refusn.ubuntu.com/4102-1/Refwww.debian.org/security/2019/dsa-4501Refwww.libreoffice.org/about-us/security/advisories/CVE-2019-9850Reflists.opensuse.org/opensuse-security-announce/2019-09/msg00006.html

How CyberStrike helps

Frequently asked questions

What is CVE-2019-9850?

CVE-2019-9850 is a critical-severity vulnerability. It was published on August 15, 2019 and has a CVSS 3.1 base score of 9.8 (CRITICAL).

How severe is CVE-2019-9850?

This vulnerability has a CVSS 3.1 base score of 9.8, rated CRITICAL. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2019-9850?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2019-9850?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2019-9850 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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