CVE-2022-23492 go-libp2p denial of service vulnerability from lack of resource management
An attacker can exhaust resources in go-libp2p, causing the application to crash due to memory exhaustion.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2022-23492?
CVE-2022-23492 is a high-severity denial of service vulnerability in go-libp2p, published on 8 Dec 2022. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
go-libp2p is the offical libp2p implementation in the Go programming language. Version `0.18.0` and older of go-libp2p are vulnerable to targeted resource exhaustion attacks. These attacks target libp2p’s connection, stream, peer, and memory management. An attacker can cause the allocation of large amounts of memory, ultimately leading to the process getting killed by the host’s operating system. While a connection manager tasked with keeping the number of connections within manageable limits has been part of go-libp2p, this component was designed to handle the regular churn of peers, not a targeted resource exhaustion attack. Users are advised to upgrade their version of go-libp2p to version `0.18.1` or newer. Users unable to upgrade may consult the denial of service (dos) mitigation page for more information on how to incorporate mitigation strategies, monitor your application, and respond to attacks.
Which versions are affected by CVE-2022-23492?
3 open source packages ship an affected version, including github.com/libp2p/go-libp2p. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
github.com/libp2p/go-libp2p Go | All versions | 0.18.0 |
github.com/libp2p/go-libp2p Go | All versions | 0.18.0 |
github.com/libp2p/go-libp2p Go | All versions | 0.18.0 |
Products include Protocol Libp2p.
How do I fix CVE-2022-23492?
Upgrade github.com/libp2p/go-libp2p to 0.18.0 or later.
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-2022-23492 being exploited?
There is no known exploitation of CVE-2022-23492 in the wild and no public exploit code.
Other vulnerabilities in go-libp2p
- CVE-2026-35457 libp2p-rust has unbounded rendezvous DISCOVER cookies enable remote memory exhaustion
- CVE-2026-35405 libp2p-rendezvous: Unlimited namespace registrations per peer enables OOM DoS on rendezvous servers
- CVE-2023-40583 libp2p nodes vulnerable to OOM attack
- CVE-2022-23486 libp2p-rust denial of service vulnerability from lack of resource management
- CVE-2022-23487 libp2p denial of service vulnerability from lack of resource management
Sources
Also known as GHSA-j7qp-mfxf-8xjw, GO-2022-1148.