CVE-2020-11653
First published: Wed Apr 08 2020(Updated: )
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.
Credit: cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Varnish-cache Varnish Cache | >=6.1.0<6.2.3 | |
| Varnish-cache Varnish Cache | >=6.3.0<6.3.2 | |
| Varnish-software Varnish Cache | >=6.0.0<6.0.6 | |
| openSUSE Backports SLE | =15.0-sp1 | |
| openSUSE Leap | =15.1 | |
| Debian Debian Linux | =10.0 |
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Reference Links
Frequently Asked Questions
What is CVE-2020-11653?
CVE-2020-11653 is a vulnerability in Varnish Cache that occurs when communication with a TLS termination proxy uses PROXY version 2, leading to an assertion failure and daemon restart.
What software is affected by CVE-2020-11653?
Varnish Cache versions 6.0.0 to 6.0.6 LTS, 6.1.x, 6.2.x, and 6.3.0 to 6.3.2 are affected by CVE-2020-11653.
What is the severity of CVE-2020-11653?
CVE-2020-11653 has a severity level of high with a CVSS score of 7.5.
How can I fix CVE-2020-11653?
To fix CVE-2020-11653, upgrade to Varnish Cache version 6.0.6 LTS, 6.2.3, or 6.3.2.
Where can I find more information about CVE-2020-11653?
More information about CVE-2020-11653 can be found at the following references: [1], [2], [3].
- collector/nvd-index
- agent/references
- agent/type
- agent/event
- agent/weakness
- agent/severity
- agent/author
- agent/description
- agent/last-modified-date
- agent/softwarecombine
- agent/first-publish-date
- agent/tags
- collector/mitre-cve
- source/MITRE
- vendor/varnish-cache
- canonical/varnish-cache varnish cache
- version/varnish-cache varnish cache/6.1.0
- version/varnish-cache varnish cache/6.3.0
- vendor/varnish-software
- canonical/varnish-software varnish cache
- version/varnish-software varnish cache/6.0.0
- vendor/opensuse
- canonical/opensuse backports sle
- version/opensuse backports sle/15.0-sp1
- canonical/opensuse leap
- version/opensuse leap/15.1
- vendor/debian
- canonical/debian debian linux
- version/debian debian linux/10.0