CVE-2022-30591 Denial of service in n/a

What is CVE-2022-30591?

CVE-2022-30591 is a high-severity denial of service vulnerability in n/a, published on 6 Jul 2022. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

quic-go through 0.27.0 allows remote attackers to cause a denial of service (CPU consumption) via a Slowloris variant in which incomplete QUIC or HTTP/3 requests are sent. This occurs because mtu_discoverer.go misparses the MTU Discovery service and consequently overflows the probe timer. NOTE: the vendor's position is that this behavior should not be listed as a vulnerability on the CVE List

Weakness: CWE-400

Which versions are affected by CVE-2022-30591?

It affects 1 product.

Products include Quic-Go Project Quic-Go.

How do I fix CVE-2022-30591?

No fix has been published for CVE-2022-30591 yet. Limit exposure of the affected software until one is available.

Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.

Is CVE-2022-30591 being exploited?

There is no known exploitation of CVE-2022-30591 in the wild and no public exploit code.

Public exploit code: 1 proofs of concept on GitHub.

Other vulnerabilities in n/a

• CVE-2023-46239 quic-go vulnerable to pointer dereference that can lead to panic High 7.5
• CVE-2023-49295 quic-go's path validation mechanism can cause denial of service Medium 6.4
• CVE-2026-40898 quic-go: HTTP/3 QPACK Trailer Expansion Memory Exhaustion Medium 5.3
• CVE-2025-64702 quic-go HTTP/3 QPACK Header Expansion DoS Medium 5.3

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as DEBIAN-CVE-2022-30591, GHSA-w2rh-hf85-pfh4.