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 par

What is CVE-2023-24609?

CVE-2023-24609 is a high-severity vulnerability in n/a, published on 22 Dec 2023.

Official 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.

Weakness: CWE-190

Which versions are affected by CVE-2023-24609?

It affects 2 products.

Products include Matrixssl Matrixssl, Rambus Tls Toolkit.

How do I fix CVE-2023-24609?

No fix has been published for CVE-2023-24609 yet. Limit exposure of the affected software until one is available.

Is CVE-2023-24609 being exploited?

There is no known exploitation of CVE-2023-24609 in the wild and no public exploit code.

Other vulnerabilities in n/a

• CVE-2019-14431 Memory corruption in n/a Critical 9.8
• CVE-2019-13470 Memory corruption in n/a Critical 9.8
• CVE-2019-10914 Memory corruption in n/a Critical 9.8
• CVE-2016-6890 Memory corruption in n/a Critical 9.8
• CVE-2022-43974 Integer overflow in n/a High 8.1

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as GHSA-75jg-c8f9-x2rh.