CVE-2020-12605 : What You Need to Know

Envoy version 1.14.2, 1.13.2, 1.12.4, or earlier may consume excessive memory when processing HTTP/1.1 headers with long field names or URLs.

Understanding CVE-2020-12605

This CVE involves memory consumption issues in specific versions of Envoy.

What is CVE-2020-12605?

Envoy versions 1.14.2, 1.13.2, 1.12.4, or older can experience high memory usage due to processing long HTTP/1.1 headers or URLs.

The Impact of CVE-2020-12605

Excessive memory consumption may lead to performance degradation and potential denial of service.

Technical Details of CVE-2020-12605

This section provides technical insights into the vulnerability.

Vulnerability Description

Envoy versions 1.14.2, 1.13.2, 1.12.4, or earlier may consume excessive memory during processing of specific HTTP requests.

Affected Systems and Versions

Affected versions: 1.14.2, 1.13.2, 1.12.4, and older.

Exploitation Mechanism

Attackers can exploit this vulnerability by sending HTTP requests with long field names or URLs to trigger excessive memory usage.

Mitigation and Prevention

Protect your systems from CVE-2020-12605 with the following measures.

Immediate Steps to Take

Monitor memory usage on systems running affected Envoy versions.
Consider upgrading to a patched version or implementing mitigation strategies.

Long-Term Security Practices

Regularly update Envoy to the latest stable release to address known vulnerabilities.
Implement network security measures to detect and block malicious traffic.

Patching and Updates

Apply patches provided by Envoy to fix the memory consumption issue and enhance system security.