Vulnerability 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 block calling LibreLogo from script event handers. However a Windows 8.3 path equivalence handling flaw left LibreOffice vulnerable under Windows that a document could trigger executing LibreLogo via a Windows filename pseudonym. This issue affects: Document Foundation LibreOffice 6.2 versions prior to 6.2.7; 6.3 versions prior to 6.3.1.
CVSS Score
CRITICAL
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Libreoffice | Libreoffice | >= 6.2.0, < 6.2.7 |
| Microsoft | Windows | - |
| Opensuse | Leap | 15.0 |
Related Weaknesses (CWE)
References
- http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00067.htmlMailing ListThird Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00055.htmlMailing ListThird Party Advisory
- https://www.libreoffice.org/about-us/security/advisories/CVE-2019-9855/Vendor Advisory
- http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00067.htmlMailing ListThird Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00055.htmlMailing ListThird Party Advisory
- https://www.libreoffice.org/about-us/security/advisories/CVE-2019-9855/Vendor Advisory
FAQ
What is CVE-2019-9855?
CVE-2019-9855 is a vulnerability with a CVSS score of 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. LibreOffice ...
How severe is CVE-2019-9855?
CVE-2019-9855 has been rated CRITICAL with a CVSS base score of 9.8/10. This is considered a critical vulnerability requiring immediate attention.
Is there a patch for CVE-2019-9855?
Check the references section above for vendor advisories and patch information. Affected products include: Libreoffice Libreoffice, Microsoft Windows, Opensuse Leap.