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CVE-2024-32475

April 18, 2024, 6:25 p.m.

Awaiting Analysis
CVE has been recently published to the CVE List and has been received by the NVD.

Products

Envoy

  • 1.30.1
  • 1.29.4
  • 1.28.3
  • 1.27.5

Envoy Proxy

  • 1.30.1
  • 1.29.4
  • 1.28.3
  • 1.27.5

Source

security-advisories@github.com

Tags

CVE-2024-32475 details

Published : April 18, 2024, 3:15 p.m.
Last Modified : April 18, 2024, 6:25 p.m.

Description

Envoy is a cloud-native, open source edge and service proxy. When an upstream TLS cluster is used with `auto_sni` enabled, a request containing a `host`/`:authority` header longer than 255 characters triggers an abnormal termination of Envoy process. Envoy does not gracefully handle an error when setting SNI for outbound TLS connection. The error can occur when Envoy attempts to use the `host`/`:authority` header value longer than 255 characters as SNI for outbound TLS connection. SNI length is limited to 255 characters per the standard. Envoy always expects this operation to succeed and abnormally aborts the process when it fails. This vulnerability is fixed in 1.30.1, 1.29.4, 1.28.3, and 1.27.5.

CVSS Score

1 2 3 4 5 6 7.5 8 9 10

Weakness

Weakness Name Description

CVSS Data

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

Base Score

7.5

Exploitability Score

Impact Score

Base Severity

HIGH

Vector String : CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

References

URL Source
https://github.com/envoyproxy/envoy/commit/b47fc6648d7c2dfe0093a601d44cb704b7bad382 security-advisories@github.com
https://github.com/envoyproxy/envoy/security/advisories/GHSA-3mh5-6q8v-25wj security-advisories@github.com
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