If updating to the latest version is not possible for any reason, you can always opt to completely disable the macro features on your office suite, or avoid trusting any documents containing macros.
If you’re using Linux and the aforementioned versions aren’t available on your distribution's package manager yet, you are advised to download the “deb”, or “rpm” package from the Download center or build LibreOffice from source. Since neither of these two applications offer auto-updating, you should do it manually by downloading the latest version from the respective download centers - LibreOffice, OpenOffice. A serious LibreOffice flaw can be easily exploited by attackers to deliver malware on computers running a vulnerable version of the popular free and open source office suite. For OpenOffice, that would be 4.1.10 and later, and for LibreOffice, 7.0.5 or 7.1.1 and later.
#LIBREOFFICE OPENOFFICE ALLOWS HACKERS TO SPOOF UPGRADE#
If you’re using either of the open-source office suites, you’re advised to upgrade to the latest available version immediately. The same flaw impacts LibreOffice, which is a fork of OpenOffice spawned from the main project over a decade ago, and for their project is tracked as CVE-2021-25635. The discovery of the flaw, which is tracked as CVE-2021-41832 for OpenOffice, was the work of four researchers at the Ruhr University Bochum. "Allowing anyone to sign macro-ridden documents themselves, and make them appear as trustworthy, is an excellent way to trick users into running malicious code. The digital signatures used in document macros are meant to help the user verify that the document hasn’t been altered and can be trusted. LibreOffice and OpenOffice have pushed updates to address a vulnerability that makes it possible for an attacker to manipulate documents to appear as signed by a trusted source.Īlthough the severity of the flaw is classified as moderate, the implications could be dire.
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