CVE-2023-35943

Envoy is an open source edge and service proxy designed for cloud-native applications. Prior to versions 1.27.0, 1.26.4, 1.25.9, 1.24.10, and 1.23.12, the CORS filter will segfault and crash Envoy when the `origin` header is removed and deleted between `decodeHeaders`and `encodeHeaders`. Versions 1.27.0, 1.26.4, 1.25.9, 1.24.10, and 1.23.12 have a fix for this issue. As a workaround, do not remove the `origin` header in the Envoy configuration.

CVSS v3 7.5 HIGH

7.5^/10

CVSS v3 : HIGH

Vector :

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://github.com/envoyproxy/envoy/security/advisories/GHSA-mc6h-6j9x-v3gq	Exploit Third Party Advisory

Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:envoyproxy:envoy::::::::
	cpe:2.3:a:envoyproxy:envoy::::::::
	cpe:2.3:a:envoyproxy:envoy::::::::
	cpe:2.3:a:envoyproxy:envoy::::::::

History

02 Aug 2023, 18:47

Type	Values Removed	Values Added
References	~~(MISC) https://github.com/envoyproxy/envoy/security/advisories/GHSA-mc6h-6j9x-v3gq -~~	(MISC) https://github.com/envoyproxy/envoy/security/advisories/GHSA-mc6h-6j9x-v3gq - Exploit, Third Party Advisory
First Time		Envoyproxy envoy Envoyproxy
CVSS	v2 : ~~unknown~~ v3 : ~~unknown~~	v2 : unknown v3 : 7.5
CPE		cpe:2.3:a:envoyproxy:envoy::::::::

25 Jul 2023, 19:15

Type	Values Removed	Values Added
New CVE

Information

Published : 2023-07-25 19:15

Updated : 2023-12-10 15:14

NVD link : CVE-2023-35943

Mitre link : CVE-2023-35943

CVE.ORG link : CVE-2023-35943

JSON object : View

Products Affected

envoyproxy

envoy

CWE

CWE-416

Use After Free

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