Arbitrary Code Injection Affecting libreoffice-base package, versions <1:6.0.6.1-20.el8


Severity

Recommended
medium

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

Exploit Maturity
Proof of Concept
EPSS
78.35% (100th percentile)

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  • Snyk IDSNYK-RHEL8-LIBREOFFICEBASE-3736339
  • published26 Jul 2021
  • disclosed15 Aug 2019

Introduced: 15 Aug 2019

CVE-2019-9851  (opens in a new tab)
CWE-94  (opens in a new tab)

How to fix?

Upgrade RHEL:8 libreoffice-base to version 1:6.0.6.1-20.el8 or higher.
This issue was patched in RHSA-2020:1598.

NVD Description

Note: Versions mentioned in the description apply only to the upstream libreoffice-base package and not the libreoffice-base package as distributed by RHEL. See How to fix? for RHEL:8 relevant fixed versions and status.

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.

CVSS Base Scores

version 3.1