Vulnerability · Published Aug 25, 2023 · Assigned by GitHub_M
CVE-2023-40583libp2p nodes vulnerable to OOM attack
High 7.5
In plain English
A high-severity uncontrolled resource consumption in go-libp2p from libp2p. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.0% (higher than 61% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Official description
libp2p is a networking stack and library modularized out of The IPFS Project, and bundled separately for other tools to use. In go-libp2p, by using signed peer records a malicious actor can store an arbitrary amount of data in a remote node’s memory. This memory does not get garbage collected and so the victim can run out of memory and crash. If users of go-libp2p in production are not monitoring memory consumption over time, it could be a silent attack i.e. the attacker could bring down nodes over a period of time (how long depends on the node resources i.e. a go-libp2p node on a virtual server with 4 gb of memory takes about 90 sec to bring down; on a larger server, it might take a bit longer.) This issue was patched in version 0.27.4.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Go | github.com/libp2p/go-libp2p | 0.27.4 | GHSA-gcq9-qqwx-rgj3 |
| Go | github.com/libp2p/go-libp2p | 0.27.4 | GO-2023-2024 |
Affected products (as reported)
Weakness: CWE-400 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
References
- https://github.com/libp2p/go-libp2p/security/advisories/GHSA-gcq9-qqwx-rgj3 x_refsource_CONFIRM
- https://github.com/libp2p/go-libp2p/commit/45d3c6fff662ddd6938982e7e9309ad5fa2ad8dd x_refsource_MISC
- https://github.com/libp2p/go-libp2p/releases/tag/v0.27.4 x_refsource_MISC
- https://github.com/libp2p/go-libp2p/releases/tag/v0.27.7 x_refsource_MISC