CVE-2022-31045

Ill-formed headers may lead to unexpected behavior in Istio

Severity Score

9.8

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

Istio is an open platform to connect, manage, and secure microservices. In affected versions ill-formed headers sent to Envoy in certain configurations can lead to unexpected memory access resulting in undefined behavior or crashing. Users are most likely at risk if they have an Istio ingress Gateway exposed to external traffic. This vulnerability has been resolved in versions 1.12.8, 1.13.5, and 1.14.1. Users are advised to upgrade. There are no known workarounds for this issue.

Istio es una plataforma abierta para conectar, gestionar y asegurar microservicios. En las versiones afectadas, las cabeceras mal formadas enviadas a Envoy en ciertas configuraciones pueden conducir a un acceso inesperado a la memoria, lo que resulta en un comportamiento indefinido o un bloqueo. Los usuarios están en mayor riesgo si tienen un Gateway de entrada de Istio expuesto al tráfico externo. Esta vulnerabilidad se ha resuelto en las versiones 1.12.8, 1.13.5 y 1.14.1. Se recomienda a los usuarios que actualicen. No hay soluciones conocidas para este problema

A flaw was found in Istio. Memory access violation of ill-formed headers sent to Envoy in certain configurations can lead to unexpected memory access, resulting in undefined behavior or crashing.

*Credits: N/A

CVSS Scores

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Attack Vector

Network

Attack Complexity

High

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

Low

Integrity

Low

Availability

High

Attack Vector

Network

Attack Complexity

Low

Authentication

None

Confidentiality

Partial

Integrity

Partial

Availability

Partial

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2022-05-18 CVE Reserved
2022-06-09 CVE Published
2023-12-31 EPSS Updated
2024-08-03 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-125: Out-of-bounds Read

CAPEC

References (4)

URL	Tag	Source
https://github.com/istio/istio/security/advisories/GHSA-xwx5-5c9g-x68x	Third Party Advisory
https://istio.io/latest/news/security/istio-security-2022-05	Broken Link

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC
https://access.redhat.com/security/cve/CVE-2022-31045	2022-06-13
https://bugzilla.redhat.com/show_bug.cgi?id=2088819	2022-06-13

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Istio Search vendor "Istio"		Istio Search vendor "Istio" for product "Istio"				< 1.12.8 Search vendor "Istio" for product "Istio" and version " < 1.12.8"		-		Affected
Istio Search vendor "Istio"		Istio Search vendor "Istio" for product "Istio"				>= 1.13.0 < 1.13.5 Search vendor "Istio" for product "Istio" and version " >= 1.13.0 < 1.13.5"		-		Affected
Istio Search vendor "Istio"		Istio Search vendor "Istio" for product "Istio"				1.14.0 Search vendor "Istio" for product "Istio" and version "1.14.0"		-		Affected