Directory Traversal Affecting libreoffice-help-ca package, versions <1:5.3.6.1-24.el7


Severity

Recommended
medium

Based on CentOS security rating.

Threat Intelligence

EPSS
0.35% (73rd percentile)

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  • Snyk IDSNYK-CENTOS7-LIBREOFFICEHELPCA-2159997
  • published26 Jul 2021
  • disclosed15 Aug 2019

Introduced: 15 Aug 2019

CVE-2019-9852  (opens in a new tab)
CWE-22  (opens in a new tab)

How to fix?

Upgrade Centos:7 libreoffice-help-ca 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-ca package and not the libreoffice-help-ca package as distributed by Centos. See How to fix? for Centos:7 relevant fixed versions and status.

LibreOffice has a feature where documents can specify that pre-installed macros can be executed on various script events such as mouse-over, document-open etc. Access is intended to be restricted to scripts under the share/Scripts/python, user/Scripts/python sub-directories of the LibreOffice install. Protection was added, to address CVE-2018-16858, to avoid a directory traversal attack where scripts in arbitrary locations on the file system could be executed. However this new protection could be bypassed by a URL encoding attack. In the fixed versions, the parsed url describing the script location is correctly encoded before further processing. This issue affects: Document Foundation LibreOffice versions prior to 6.2.6.

CVSS Scores

version 3.1