Is CVE-2020-11653 actively exploited?

CVE-2020-11653 has no public evidence of in-the-wild exploitation as of 2024-11-21.

What is the CVSS score for CVE-2020-11653?

CVE-2020-11653 has a CVSS score of 7.5 (HIGH severity). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

How do I patch CVE-2020-11653?

Patch guidance is available from varnish-cache security advisories. CVEDatabase generates AI-assisted remediation guidance on demand for CVE-2020-11653.

Fix CVE-2020-11653 - HIGH varnish-cache varnish cache

Q: Which products are affected by CVE-2020-11653?

6 products: varnish-cache varnish cache, varnish-cache varnish cache, varnish-software varnish cache, opensuse backports sle, opensuse leap, and 1 more.

Description

An issue was discovered in Varnish Cache before 6.0.6 LTS, 6.1.x and 6.2.x before 6.2.3, and 6.3.x before 6.3.2. It occurs when communication with a TLS termination proxy uses PROXY version 2. There can be an assertion failure and daemon restart, which causes a performance loss.

CVSS Metrics

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack Vector: network
Complexity: low
Privileges: none
User Action: none
Scope: unchanged
Confidentiality: none
Integrity: none
Availability: high
Weaknesses: CWE-617

Metadata

Primary Vendor: VARNISH-CACHE
Published: 4/8/2020
Last Modified: 11/21/2024
Source: NIST NVD
Note: Verify all details with official vendor sources before applying patches.

Affected Products

varnish-cache : varnish_cachevarnish-cache : varnish_cachevarnish-software : varnish_cacheopensuse : backports_sleopensuse : leapdebian : debian_linux

Remediation Guidance

Executive Summary

View on NIST NVD