7.5

CVE-2023-39533

Exploit

libp2p nodes vulnerable to attack using large RSA keys

go-libp2p is the Go implementation of the libp2p Networking Stack. Prior to versions 0.27.8, 0.28.2, and 0.29.1 malicious peer can use large RSA keys to run a resource exhaustion attack & force a node to spend time doing signature verification of the large key. This vulnerability is present in the core/crypto module of go-libp2p and can occur during the Noise handshake and the libp2p x509 extension verification step. To prevent this attack, go-libp2p versions 0.27.8, 0.28.2, and 0.29.1 restrict RSA keys to <= 8192 bits. To protect one's application, it is necessary to update to these patch releases and to use the updated Go compiler in 1.20.7 or 1.19.12. There are no known workarounds for this issue.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Libp2p ≫ Go-libp2p SwPlatformgo Version < 0.27.8
Libp2p ≫ Go-libp2p SwPlatformgo Version >= 0.28.0 < 0.28.2
Libp2p ≫ Go-libp2p Version0.29.0 SwPlatformgo
Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 1.08% 0.609
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
nvd@nist.gov 7.5 3.9 3.6
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
security-advisories@github.com 7.5 3.9 3.6
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CWE-770 Allocation of Resources Without Limits or Throttling

The product allocates a reusable resource or group of resources on behalf of an actor without imposing any restrictions on the size or number of resources that can be allocated, in violation of the intended security policy for that actor.

https://github.com/golang/go/commit/2350afd2e8ab054390e284c95d5b089c142db017
Patch
Not Applicable
https://github.com/golang/go/issues/61460
Vendor Advisory
Not Applicable
Issue Tracking
https://github.com/libp2p/go-libp2p/commit/0cce607219f3710addc7e18672cffd1f1d912fbb
Patch
https://github.com/libp2p/go-libp2p/commit/445be526aea4ee0b1fa5388aa65d32b2816d3a00
Patch
https://github.com/libp2p/go-libp2p/commit/e30fcf7dfd4715ed89a5e68d7a4f774d3b9aa92d
Patch
https://github.com/libp2p/go-libp2p/pull/2454
Patch
Vendor Advisory
Exploit
https://github.com/libp2p/go-libp2p/security/advisories/GHSA-876p-8259-xjgg
Patch
Vendor Advisory
https://github.com/quic-go/quic-go/pull/4012
Patch
Third Party Advisory