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CVE-2020-11653

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Date: April 7, 2020

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.

Language: C

Severity Score

Related Resources (9)

https://people.canonical.com/~ubuntu-security/cve/CVE-2020-11653
http://lists.opensuse.org/opensuse-security-announce/2020-06/msg00031.html
https://nvd.nist.gov/vuln/detail/CVE-2020-11653
https://access.redhat.com/security/cve/CVE-2020-11653
https://lists.debian.org/debian-lts-announce/2022/11/msg00036.html
http://lists.opensuse.org/opensuse-security-announce/2020-06/msg00026.html
https://varnish-cache.org/security/VSV00005.html#vsv00005
https://security-tracker.debian.org/tracker/CVE-2020-11653
https://www.mend.io/vulnerability-database/CVE-2020-11653

Severity Score

Weakness Type (CWE)

Input Validation

CWE-20

Reachable Assertion

CWE-617

Top Fix

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CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): LOW
Privileges Required (PR): NONE
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): NONE
Integrity (I): NONE
Availability (A): HIGH

CVSS v2

Base Score:
Access Vector (AV): NETWORK
Access Complexity (AC): LOW
Authentication (AU): NONE
Confidentiality (C): NONE
Integrity (I): NONE
Availability (A): PARTIAL
Additional information:

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