Back to Database
Status published
High
CVE-2020-11653
An issue was discovered in Varnish Cache before 6.0.6 LTS,...
Vulnerability 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.
Impact Analysis
Refer to official advisory for detailed impact metrics.
Remediation
Ensure systems are updated to the latest vendor-supplied patch levels.
THREAT MONITOR
Am I Vulnerable?
Launch our assessment wizard to check if your infrastructure is exposed to • CVE-2020-11653
Credits & Attribution
No credits recorded in the NVD database.
References
More from varnish-cache
View All →CVE-2021-36740
Varnish Cache, with HTTP/2 enabled, allows request smuggling and VCL...
Medium
6.5
CVE-2021-28543
Varnish varnish-modules before 0.17.1 allows remote attackers to cause a...
Medium
4
CVE-2019-20637
An issue was discovered in Varnish Cache before 6.0.5 LTS,...
High
7.5
CVE-2017-12425
An issue was discovered in Varnish HTTP Cache 4.0.1 through...
High
7.5
CVE-2013-4484
Varnish before 3.0.5 allows remote attackers to cause a denial...
Medium
5
Affected Vendor
varnish-cache
View all reports →Affected Software
varnish cache, backports sle, leap, debian linux
Vulnerable Versions:
6.1.0, 6.3.0, 6.0.0, 15.0, 15.1, 10.0
Timeline
Official Publish:
April 8th, 2020
Last Modified:
August 4th, 2024
Added to House:
July 21st, 2026
CVSS Vectors
V3:
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weaknesses (CWE)
No CWE data available
MITRE ATT&CK TTPs
No associated TTPs found for this vulnerability.