CVE-2020-8663

envoy: Resource exhaustion when accepting too many connections

Severity Score

7.5

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

Envoy version 1.14.2, 1.13.2, 1.12.4 or earlier may exhaust file descriptors and/or memory when accepting too many connections.

Envoy versión 1.14.2, 1.13.2, 1.12.4 o anteriores, puede agotar los descriptores de archivo y/o memoria al aceptar demasiadas conexiones

A flaw was found in envoy in versions through 1.14.1. Accepting too many connections may lead to an exhaustion of file descriptors and/or memory. The highest threat from this vulnerability is to system availability.

*Credits: N/A

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

Attack Vector

Network

Attack Complexity

Low

Authentication

None

Confidentiality

None

Integrity

None

Availability

Partial

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2020-02-06 CVE Reserved
2020-07-01 CVE Published
2023-03-17 EPSS Updated
2024-08-04 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-400: Uncontrolled Resource Consumption

CAPEC

References (4)

URL	Tag	Source
https://github.com/envoyproxy/envoy/security/advisories/GHSA-v8q7-fq78-4997	Third Party Advisory

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC
https://www.envoyproxy.io/docs/envoy/v1.13.1/intro/version_history	2020-07-08
https://access.redhat.com/security/cve/CVE-2020-8663	2020-07-07
https://bugzilla.redhat.com/show_bug.cgi?id=1844254	2020-07-07

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Envoyproxy Search vendor "Envoyproxy"		Envoy Search vendor "Envoyproxy" for product "Envoy"				<= 1.12.4 Search vendor "Envoyproxy" for product "Envoy" and version " <= 1.12.4"		-		Affected
Envoyproxy Search vendor "Envoyproxy"		Envoy Search vendor "Envoyproxy" for product "Envoy"				>= 1.13.0 <= 1.13.2 Search vendor "Envoyproxy" for product "Envoy" and version " >= 1.13.0 <= 1.13.2"		-		Affected
Envoyproxy Search vendor "Envoyproxy"		Envoy Search vendor "Envoyproxy" for product "Envoy"				>= 1.14.0 <= 1.14.2 Search vendor "Envoyproxy" for product "Envoy" and version " >= 1.14.0 <= 1.14.2"		-		Affected