CVE-2021-3836
NixOS vulnerability analysis and mitigation

Overview

CVE-2021-3836 is a vulnerability identified in DBeaver software related to Improper Restriction of XML External Entity Reference. The vulnerability was discovered and recorded on September 27, 2021 (CVE List).

Technical details

The vulnerability is classified as an XML External Entity (XXE) Reference issue in DBeaver. The issue stems from improper handling of XML processing, specifically related to secure processing features (GitHub Commit).

Impact

The vulnerability could potentially allow an attacker to exploit XML processing mechanisms in DBeaver, which might lead to unauthorized access to system files or other sensitive resources through XML External Entity attacks (CVE List).

Mitigation and workarounds

The issue was addressed through a security patch that implements secure XML processing by enabling the FEATURE_SECURE_PROCESSING feature in the DocumentBuilderFactory. The fix was implemented in a commit that specifically prevents XXE attacks (GitHub Commit).

Additional resources


SourceThis report was generated using AI

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