CVE-2024-39321: traefik — Fix

Description

Traefik is an HTTP reverse proxy and load balancer. Versions prior to 2.11.6, 3.0.4, and 3.1.0-rc3 have a vulnerability that allows bypassing IP allow-lists via HTTP/3 early data requests in QUIC 0-RTT handshakes sent with spoofed IP addresses. Versions 2.11.6, 3.0.4, and 3.1.0-rc3 contain a patch for this issue. No known workarounds are available.

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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:H/A:N

Weakness Type (CWE)

CWE-639 CWE-639

Affected Products

Vendor	Product	Versions
traefik	traefik	< 2.11.6
traefik	traefik	3.0.0 — 3.0.4
traefik	traefik	All
traefik	traefik	All
traefik	traefik	All

References

Advisories & Patches

https://github.com/traefik/traefik/security/advisories/GHSA-gxrv-wf35-62w9 https://github.com/traefik/traefik/security/advisories/GHSA-gxrv-wf35-62w9

Other References

https://github.com/traefik/traefik/releases/tag/v2.11.6 https://github.com/traefik/traefik/releases/tag/v3.0.4 https://github.com/traefik/traefik/releases/tag/v3.1.0-rc3 https://github.com/traefik/traefik/releases/tag/v2.11.6 https://github.com/traefik/traefik/releases/tag/v3.0.4 https://github.com/traefik/traefik/releases/tag/v3.1.0-rc3

Frequently Asked Questions

What is CVE-2024-39321? +

Traefik is an HTTP reverse proxy and load balancer. Versions prior to 2.11.6, 3.0.4, and 3.1.0-rc3 have a vulnerability that allows bypassing IP allow-lists via HTTP/3 early data requests in QUIC 0-RTT handshakes sent with spoofed IP addresses. Versions 2.11.6, 3.0.4, and 3.1.0-rc3 contain a patch for this issue. No known workarounds are available. It has a CVSS v3.1 base score of 7.5 (HIGH).

How severe is CVE-2024-39321? +

CVE-2024-39321 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-2024-39321? +

CVE-2024-39321 affects products from traefik, specifically: traefik. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2024-39321? +

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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