CVE-2023-24609

Severity CVSS v4.0:
Pending analysis
Type:
CWE-190 Integer Overflow or Wraparound
Publication date:
22/12/2023
Last modified:
03/01/2024

Description

Matrix SSL 4.x through 4.6.0 and Rambus TLS Toolkit have a length-subtraction integer overflow for Client Hello Pre-Shared Key extension parsing in the TLS 1.3 server. An attacked device calculates an SHA-2 hash over at least 65 KB (in RAM). With a large number of crafted TLS messages, the CPU becomes heavily loaded. This occurs in tls13VerifyBinder and tls13TranscriptHashUpdate.

Vulnerable products and versions

CPE From Up to
cpe:2.3:a:matrixssl:matrixssl:*:*:*:*:*:*:*:* 4.0.0 (including) 4.6.0 (including)
cpe:2.3:a:rambus:tls_toolkit:-:*:*:*:*:*:*:*