SB2022040430 - SUSE update for libreoffice

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Main Vulnerability Database SB2022040430

SB2022040430 - SUSE update for libreoffice

Published: April 4, 2022

Security Bulletin ID SB2022040430
CSH Severity
Low
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Remote access
Highest impact Data manipulation

Breakdown by Severity

Low 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 vulnerability.


1) Improper certificate validation (CVE-ID: CVE-2021-25636)

CWE-ID: CWE-295 - Improper Certificate Validation

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear


The vulnerability allows a remote attacker to perform a spoofing attack.

The vulnerability exists due to improper certificate validation when processing digital signatures of ODF documents. A remote attacker can modify the documentsignatures.xml or macrosignatures.xml stream within the document to contain both "X509Data" and "KeyValue" children of the "KeyInfo" tag[1], which when opened caused LibreOffice to verify using the "KeyValue" but to report verification with the unrelated "X509Data" value.


Remediation

Install update from vendor's website.

References