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Vulnerability DatabaseCVE-2020-15474
CVE-2020-15474:
NixOS vulnerability analysis and mitigation
Overview
In nDPI through version 3.2, there exists a stack overflow vulnerability in the extractRDNSequence function located in lib/protocols/tls.c. The vulnerability was discovered and disclosed on July 1, 2020 (CVE-MITRE).
Technical details
The vulnerability occurs due to a missing length check in the extractRDNSequence function within the TLS protocol handling code. The issue specifically manifests when processing RDN (Relative Distinguished Name) sequences in TLS certificates. A fix was implemented by adding a buffer capacity check to prevent overflow conditions (GITHUB-COMMIT).
Impact
A successful exploitation of this vulnerability could lead to a stack overflow condition, potentially resulting in program crashes or arbitrary code execution in systems using the affected nDPI library versions (DEBIAN-TRACKER).
Mitigation and workarounds
The vulnerability has been patched in versions after nDPI 3.2. Users should upgrade to a newer version of nDPI to mitigate this security issue. The fix involves implementing proper buffer length validation in the extractRDNSequence function (GITHUB-COMMIT).
Additional resources
Source: This report was generated using AI
Related NixOS vulnerabilities:
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