Vulnerability Monitor

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CVE-2023-24609

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.

Published

2023-12-22T04:15:08.673

Last Modified

2024-11-21T07:48:13.983

Status

Modified

Source

[email protected]

Severity

CVSSv3.1: 7.5 (HIGH)

Weaknesses

Type: Primary
CWE-190

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Application	matrixssl	matrixssl	≤ 4.6.0	Yes
Application	rambus	tls_toolkit	-	Yes

References

https://www.rambus.com/security/software-protocols/tls-toolkit/ Product ([email protected])
https://www.telekom.com/en/company/data-privacy-and-security/news/advisories-504842 Exploit, Third Party Advisory ([email protected])
https://www.rambus.com/security/software-protocols/tls-toolkit/ Product (af854a3a-2127-422b-91ae-364da2661108)
https://www.telekom.com/en/company/data-privacy-and-security/news/advisories-504842 Exploit, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)