CVE-2023-3724

If a TLS 1.3 client gets neither a PSK (pre shared key) extension nor a KSE (key share extension) when connecting to a malicious server, a default predictable buffer gets used for the IKM (Input Keying Material) value when generating the session master secret. Using a potentially known IKM value when generating the session master secret key compromises the key generated, allowing an eavesdropper to reconstruct it and potentially allowing access to or meddling with message contents in the session. This issue does not affect client validation of connected servers, nor expose private key information, but could result in an insecure TLS 1.3 session when not controlling both sides of the connection. wolfSSL recommends that TLS 1.3 client side users update the version of wolfSSL used. 
Configurations

Configuration 1 (hide)

cpe:2.3:a:wolfssl:wolfssl:*:*:*:*:*:*:*:*

History

28 Jul 2023, 13:54

Type Values Removed Values Added
CPE cpe:2.3:a:wolfssl:wolfssl:*:*:*:*:*:*:*:*
CVSS v2 : unknown
v3 : unknown
v2 : unknown
v3 : 8.8
References (MISC) https://www.wolfssl.com/docs/security-vulnerabilities/ - (MISC) https://www.wolfssl.com/docs/security-vulnerabilities/ - Vendor Advisory
References (MISC) https://github.com/wolfSSL/wolfssl/pull/6412 - (MISC) https://github.com/wolfSSL/wolfssl/pull/6412 - Patch
CWE CWE-295

17 Jul 2023, 22:15

Type Values Removed Values Added
New CVE

Information

Published : 2023-07-17 22:15

Updated : 2024-02-05 00:01


NVD link : CVE-2023-3724

Mitre link : CVE-2023-3724

CVE.ORG link : CVE-2023-3724


JSON object : View

Products Affected

wolfssl

  • wolfssl
CWE
CWE-295

Improper Certificate Validation

CWE-20

Improper Input Validation