CVE-2023-39533

Severity CVSS v4.0:

Pending analysis

Type:

Unavailable / Other

Publication date:

08/08/2023

Last modified:

31/10/2023

Description

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

Impact

Vector 3.x

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS v3.1 Severity and Metrics:

Base Score: 7.50 HIGH
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): None
Integrity (I): None
Availability (A): High

Base Score 3.x

7.50

Severity 3.x

HIGH

Vulnerable products and versions

CPE	From	Up to
cpe:2.3:a:libp2p:go-libp2p::::::go::*		0.27.8 (excluding)
cpe:2.3:a:libp2p:go-libp2p::::::go::*	0.28.0 (including)	0.28.2 (excluding)
cpe:2.3:a:libp2p:go-libp2p:0.29.0:::::go::

To consult the complete list of CPE names with products and versions, see this page

CVE-2023-39533

Description

Impact

Vulnerable products and versions

References to Advisories, Solutions, and Tools