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Ubuntu 20.04 LTS USN-5153-1 Moderate: LibreOffice Signature Flaw

LibreOffice could incorrectly validate document signatures.. =========================================================================Ubuntu Security Notice USN-5153-1 November 22, 2021 libreoffice vulnerabilities ========================================================================= A security issue affects these releases of Ubuntu and its derivatives: - Ubuntu 20.04 LTS Summary: LibreOffice could incorrectly validate document signatures. Software Description: - libreoffice: Office productivity suite Details: It was discovered that LibreOffice incorrectly handled digital signatures. An attacker could possibly use this issue to create a specially crafted document that would display a validly signed indicator, contrary to expectations. Update instructions: The problem can be corrected by updating your system to the following package versions: Ubuntu 20.04 LTS: libreoffice-core 1:6.4.7-0ubuntu0.20.04.2 In general, a standard system update will make all the necessary changes. References: CVE-2021-25633, CVE-2021-25634 Package Information: https://launchpad.net/ubuntu/+source/libreoffice/1:6.4.7-0ubuntu0.20.04.2 . Security issues in the LibreOffice suite for Ubuntu 20.04 LTS may result in misleading notifications regarding signature authenticity. It is advisable to apply available updates.. LibreOffice, Ubuntu Vulnerabilities, Document Signatures. . Severity: Important. LinuxSecurity.com Team

Nov 22, 2021 •Important Ubuntu