Vulnerability Monitor

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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.

Published

2023-07-25T19:15:11.153

Last Modified

2024-11-21T08:09:01.543

Status

Modified

Source

[email protected]

Severity

CVSSv3.1: 6.3 (MEDIUM)

Weaknesses

Type: Primary
CWE-416

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Application	envoyproxy	envoy	< 1.23.12	Yes
Application	envoyproxy	envoy	< 1.24.10	Yes
Application	envoyproxy	envoy	< 1.25.9	Yes
Application	envoyproxy	envoy	< 1.26.4	Yes

References

https://github.com/envoyproxy/envoy/security/advisories/GHSA-mc6h-6j9x-v3gq Exploit, Third Party Advisory ([email protected])
https://github.com/envoyproxy/envoy/security/advisories/GHSA-mc6h-6j9x-v3gq Exploit, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)