CVE-2019-9855

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.

Score

CVSS 3.1 9.8 Critical

Status

Modified - security@documentfoundation.org

Published

2019-09-06

Last modified

2024-09-16

Weaknesses

CWE-417

Affected products

• Libreoffice (Document Foundation)
• Libreoffice (Libreoffice)
• Leap (Opensuse)

References

• http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00067.html
• http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00055.html
• https://www.libreoffice.org/about-us/security/advisories/CVE-2019-9855/