Improper Certificate Validation Affecting libreoffice-help-en package, versions <1:6.4.7.2-12.0.1.el8_7


Severity

Recommended
medium

Based on Oracle Linux security rating

    Threat Intelligence

    EPSS
    0.23% (62nd percentile)

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  • Snyk ID SNYK-ORACLE8-LIBREOFFICEHELPEN-3234504
  • published 19 Jan 2023
  • disclosed 25 Jul 2022

How to fix?

Upgrade Oracle:8 libreoffice-help-en to version 1:6.4.7.2-12.0.1.el8_7 or higher.
This issue was patched in ELSA-2023-0089.

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.

An Improper Certificate Validation vulnerability in LibreOffice existed where determining if a macro was signed by a trusted author was done by only matching the serial number and issuer string of the used certificate with that of a trusted certificate. This is not sufficient to verify that the macro was actually signed with the certificate. An adversary could therefore create an arbitrary certificate with a serial number and an issuer string identical to a trusted certificate which LibreOffice would present as belonging to the trusted author, potentially leading to the user to execute arbitrary code contained in macros improperly trusted. This issue affects: The Document Foundation LibreOffice 7.2 versions prior to 7.2.7; 7.3 versions prior to 7.3.1.

CVSS Scores

version 3.1
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NVD

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

7.8 high
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Red Hat

7.1 high