Improper Input Validation Affecting libreoffice-help-en package, versions <1:6.0.6.1-20.0.1.el8


Severity

Recommended
medium

Based on Oracle Linux security rating

    Threat Intelligence

    Exploit Maturity
    Mature
    EPSS
    97.05% (100th percentile)

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  • Snyk ID SNYK-ORACLE8-LIBREOFFICEHELPEN-2555887
  • published 10 Apr 2022
  • disclosed 15 Aug 2019

How to fix?

Upgrade Oracle:8 libreoffice-help-en to version 1:6.0.6.1-20.0.1.el8 or higher.
This issue was patched in ELSA-2020-1598.

NVD Description

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

version 3.1
Expand this section

NVD

9.8 critical
  • Attack Vector (AV)
    Network
  • Attack Complexity (AC)
    Low
  • Privileges Required (PR)
    None
  • User Interaction (UI)
    None
  • Scope (S)
    Unchanged
  • Confidentiality (C)
    High
  • Integrity (I)
    High
  • Availability (A)
    High