CVE-2020-11653
HIGH
7.5
CVSS Score
Published: April 8, 2020 at 12:00 AM UTC
Updated: June 17, 2026 at 02:50 AM UTC
5 products affected across 4 vendorsDebian LinuxLeapBackports Sle
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Severity
HIGH7.5
Exploit prediction
EPSS 2%
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.
Affected
Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.
Debian Linux· Debiandrupal
95%Leap· openSUSEdrupal
95%6.1.0 ≤ v < 6.2.36.3.0 ≤ v < 6.3.2
Affected range stops below 6.2.3, so it looks safe — our inference, not a vendor statement
Affected range stops below 6.3.2, so it looks safe — our inference, not a vendor statement
6.0.0 ≤ v < 6.0.6
Affected range stops below 6.0.6, so it looks safe — our inference, not a vendor statement
Remediation
No guide yetNo remediation guidance has been written for this CVE yet. What the record does show:
References (4)
Vendor AdvisoryMailing ListThird Party Advisory
Source: [email protected]
http://lists.opensuse.org/opensuse-security-announce/2020-06/msg00026.htmlVendor AdvisoryMailing ListThird Party Advisory
Source: [email protected]
http://lists.opensuse.org/opensuse-security-announce/2020-06/msg00031.htmlMailing ListThird Party Advisory
Source: [email protected]
https://lists.debian.org/debian-lts-announce/2022/11/msg00036.htmlCVSS
- Attack Vector
- NETWORK
- Complexity
- LOW
- Privileges
- NONE
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality
- NONE
- Integrity
- NONE
- Availability
- HIGH
Vector?
Quick Info
StatusMODIFIED
CWE
CWE-617
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