Denial of Service Vulnerability in QUIC Libraries by Lucas Clemente
CVE-2022-30591

7.5HIGH

Key Information:

Vendor

Quic-go Project

Status
Quic-go
Vendor
CVE Published:
6 July 2022

Badges

👾 Exploit Exists🟡 Public PoC🟣 EPSS 11%

What is CVE-2022-30591?

The quic-go library, specifically versions up to 0.27.0, is susceptible to a denial of service attack that leverages a Slowloris-like technique. Attackers can exploit this vulnerability by sending incomplete QUIC or HTTP/3 requests, leading to excessive CPU consumption and operational disruption. This flaw arises from a misconfiguration in the mtu_discoverer.go file, which mishandles the MTU Discovery service, ultimately causing the probe timer to overflow. While the vendor suggests that this behavior may not warrant a CVE listing, it remains a potential vector for service degradation in affected implementations.

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Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

QUIC-attacks
Created by efchatz

References

https://github.com/lucas-clemente/quic-go/blob/84e03e5976...
x_refsource_MISC

EPSS Score

11% chance of being exploited in the next 30 days.

CVSS V3.1

Score:
7.5
Severity:
HIGH
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability Reserved

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