CVE-2021-25635

Content Manipulation with Certificate Validation Attack

Description

An Improper Certificate Validation vulnerability in LibreOffice allowed an attacker to self sign an ODF document, with a signature untrusted by the target, then modify it to change the signature algorithm to an invalid (or unknown to LibreOffice) algorithm and LibreOffice would incorrectly present such a signature with an unknown algorithm as a valid signature issued by a trusted person This issue affects LibreOffice: from 7.0 before 7.0.5, from 7.1 before 7.1.1.

Category

5.2
CVSS
Severity: Medium
CVSS 4.0 •
EPSS 0.06%
Affected: The Document Foundation LibreOffice
Published at:
Updated at:

References

Link Tags
https://www.libreoffice.org/about-us/security/advisories/cve-2021-25635/

Frequently Asked Questions

What is the severity of CVE-2021-25635?
CVE-2021-25635 has been scored as a medium severity vulnerability.
How to fix CVE-2021-25635?
To fix CVE-2021-25635, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2021-25635 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2021-25635 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2021-25635?
CVE-2021-25635 affects The Document Foundation LibreOffice.
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