CVE-2023-35943

CVE Details

Release Date:	2023-07-25
Impact:	None	What is this?

Description

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 decodeHeadersand 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.

See more information about CVE-2023-35943 from MITRE CVE dictionary and NIST NVD

NOTE: The following CVSS metrics and score provided are preliminary and subject to review.

CVSS v3 metrics

Base Score:	7.5
Vector String:	CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Version:	3.0
Attack Vector:	Network
Attack Complexity:	Low
Privileges Required:	None
User Interaction:	None
Scope:	Unchanged
Confidentiality Impact:	None
Integrity Impact:	None
Availability Impact:	High

Errata information

Platform	Errata	Release Date
Oracle Linux version 7 (istio)	ELSA-2023-12781	2023-09-08
Oracle Linux version 7 (olcne)	ELSA-2023-12781	2023-09-08
Oracle Linux version 8 (istio)	ELSA-2023-12772	2023-09-11
Oracle Linux version 8 (istio)	ELSA-2023-12780	2023-09-08
Oracle Linux version 8 (kubevirt)	ELSA-2023-12772	2023-09-11
Oracle Linux version 8 (olcne)	ELSA-2023-12772	2023-09-11
Oracle Linux version 8 (olcne)	ELSA-2023-12780	2023-09-08
Oracle Linux version 9 (istio)	ELSA-2023-12771	2023-09-06
Oracle Linux version 9 (kubevirt)	ELSA-2023-12771	2023-09-06
Oracle Linux version 9 (olcne)	ELSA-2023-12771	2023-09-06