CVE-2020-12604

envoy: Resource exhaustion via HTTP/2 client requests with large payloads and improper stream windows

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 is susceptible to increased memory usage in the case where an HTTP/2 client requests a large payload but does not send enough window updates to consume the entire stream and does not reset the stream.

Envoy versiones 1.14.2, 1.13.2, 1.12.4 o anteriores, es susceptible a incrementar un uso de memoria en el caso en que un cliente HTTP/2 solicita una gran carga útil pero no envía suficientes actualizaciones de ventana para consumir toda la transmisión de datos y no se reinicia la transmisión de datos

Red Hat OpenShift Service Mesh is Red Hat's distribution of the Istio service mesh project, tailored for installation into an on-premise OpenShift Container Platform installation. Issues addressed include a resource exhaustion vulnerability.

*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

2020-05-01 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
CWE-401: Missing Release of Memory after Effective Lifetime

CAPEC

References (4)

URL	Tag	Source
https://github.com/envoyproxy/envoy/security/advisories/GHSA-8hf8-8gvw-ggvx	Third Party Advisory

URL	Date	SRC

URL	Date	SRC
https://github.com/envoyproxy/envoy/commits/master	2021-07-21

URL	Date	SRC
https://access.redhat.com/security/cve/CVE-2020-12604	2020-07-07
https://bugzilla.redhat.com/show_bug.cgi?id=1844255	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"				1.13.2 Search vendor "Envoyproxy" for product "Envoy" and version "1.13.2"		-		Affected
Envoyproxy Search vendor "Envoyproxy"		Envoy Search vendor "Envoyproxy" for product "Envoy"				1.14.2 Search vendor "Envoyproxy" for product "Envoy" and version "1.14.2"		-		Affected