Arbitrary Code Injection Affecting libreoffice-help-bg package, versions <1:5.3.6.1-24.el7


Severity

Recommended
medium

Based on CentOS security rating.

Threat Intelligence

Exploit Maturity
Mature
EPSS
96.87% (100th percentile)

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  • Snyk IDSNYK-CENTOS7-LIBREOFFICEHELPBG-2156960
  • 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 Centos:7 libreoffice-help-bg to version 1:5.3.6.1-24.el7 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream libreoffice-help-bg package and not the libreoffice-help-bg package as distributed by Centos. See How to fix? for Centos:7 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 Scores

version 3.1