Strix
26.1K

CVE-2019-9851

CRITICALCVSS 9.8/10EPSS 78.01%

Last modified

CVE-2019-9851 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. 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. Protection was added, to address CVE-2019-9848, to block calling LibreLogo from document event script handers, e.g. EPSS estimates a 78.01% chance of exploitation in the next 30 days.

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. Protection was added, to address CVE-2019-9848, to block calling LibreLogo from document event script handers, e.g. mouse over. However LibreOffice also has a separate feature where documents can specify that pre-installed scripts can be executed on various global script events such as document-open, etc. In the fixed versions, global script event handlers are validated equivalently to document script event handlers. This issue affects: Document Foundation LibreOffice versions prior to 6.2.6.

Metrics

CVSS 3.1
9.8/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS Probability
78.01%

99.5th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
CanonicalUbuntu Linux16.04
CanonicalUbuntu Linux18.04
CanonicalUbuntu Linux19.04
DebianDebian Linux8.0
DebianDebian Linux9.0
DebianDebian Linux10.0
FedoraprojectFedora29
OpensuseLeap15.0
OpensuseLeap15.1
LibreofficeLibreoffice< 6.2.6

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2019-9851?
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. Protection was added, to address CVE-2019-9848, to block calling LibreLogo from document event script handers, e.g. mouse over. However LibreOffice also has a separate feature where documents can specify that pre-installed scripts can be executed on various global script events such as document-open, etc. In the fixed versions, global script event handlers are validated equivalently to document script event handlers. This issue affects: Document Foundation LibreOffice versions prior to 6.2.6.
How severe is CVE-2019-9851?
CVE-2019-9851 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 78.01% probability of exploitation in the next 30 days.
How do I fix CVE-2019-9851?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2019-9851?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST