CVE-2024-23325: envoy — Fix

Description

Envoy is a high-performance edge/middle/service proxy. Envoy crashes in Proxy protocol when using an address type that isn’t supported by the OS. Envoy is susceptible to crashing on a host with IPv6 disabled and a listener config with proxy protocol enabled when it receives a request where the client presents its IPv6 address. It is valid for a client to present its IPv6 address to a target server even though the whole chain is connected via IPv4. This issue has been addressed in released 1.29.1, 1.28.1, 1.27.3, and 1.26.7. Users are advised to upgrade. There are no known workarounds for this vulnerability.

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CVSS v3.1 Score

7.5

HIGH

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

Weakness Type (CWE)

CWE-248 CWE-248

CWE-755 CWE-755

Affected Products

Vendor	Product	Versions
envoyproxy	envoy	1.26.0 — 1.26.7
envoyproxy	envoy	1.27.0 — 1.27.3
envoyproxy	envoy	1.28.0 — 1.28.1
envoyproxy	envoy	1.29.0 — 1.29.1

References

Advisories & Patches

https://github.com/envoyproxy/envoy/commit/bacd3107455b8d387889467725eb72aa0d5b5237 https://github.com/envoyproxy/envoy/security/advisories/GHSA-5m7c-mrwr-pm26 https://github.com/envoyproxy/envoy/commit/bacd3107455b8d387889467725eb72aa0d5b5237 https://github.com/envoyproxy/envoy/security/advisories/GHSA-5m7c-mrwr-pm26

Frequently Asked Questions

What is CVE-2024-23325? +

Envoy is a high-performance edge/middle/service proxy. Envoy crashes in Proxy protocol when using an address type that isn’t supported by the OS. Envoy is susceptible to crashing on a host with IPv6 disabled and a listener config with proxy protocol enabled when it receives a request where the client presents its IPv6 address. It is valid for a client to present its IPv6 address to a target server even though the whole chain is connected via IPv4. This issue has been addressed in released 1.29.1, 1.28.1, 1.27.3, and 1.26.7. Users are advised to upgrade. There are no known workarounds for this vulnerability. It has a CVSS v3.1 base score of 7.5 (HIGH).

How severe is CVE-2024-23325? +

CVE-2024-23325 has a CVSS v3.1 score of 7.5 out of 10, rated HIGH. This is a high-severity vulnerability that should be prioritized for patching.

What products are affected by CVE-2024-23325? +

CVE-2024-23325 affects products from envoyproxy, specifically: envoy. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2024-23325? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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