7.5
HIGH
CVE-2023-24609
Matrix SSL/TLS 1.3 DoS Integer Overflow Vulnerability
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.

INFO

Published Date :

Dec. 22, 2023, 4:15 a.m.

Last Modified :

Jan. 3, 2024, 8:34 p.m.

Remotely Exploitable :

Yes !

Impact Score :

3.6

Exploitability Score :

3.9
Affected Products

The following products are affected by CVE-2023-24609 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Matrixssl matrixssl
1 Rambus tls_toolkit
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2023-24609.

URL Resource
https://www.rambus.com/security/software-protocols/tls-toolkit/ Product
https://www.telekom.com/en/company/data-privacy-and-security/news/advisories-504842 Exploit Third Party Advisory

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2023-24609 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2023-24609 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • CVE Modified by [email protected]

    May. 14, 2024

    Action Type Old Value New Value
  • Initial Analysis by [email protected]

    Jan. 03, 2024

    Action Type Old Value New Value
    Added CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
    Changed Reference Type https://www.rambus.com/security/software-protocols/tls-toolkit/ No Types Assigned https://www.rambus.com/security/software-protocols/tls-toolkit/ Product
    Changed Reference Type https://www.telekom.com/en/company/data-privacy-and-security/news/advisories-504842 No Types Assigned https://www.telekom.com/en/company/data-privacy-and-security/news/advisories-504842 Exploit, Third Party Advisory
    Added CWE NIST CWE-190
    Added CPE Configuration OR *cpe:2.3:a:matrixssl:matrixssl:*:*:*:*:*:*:*:* versions from (including) 4.0.0 up to (including) 4.6.0
    Added CPE Configuration OR *cpe:2.3:a:rambus:tls_toolkit:-:*:*:*:*:*:*:*
  • CVE Received by [email protected]

    Dec. 22, 2023

    Action Type Old Value New Value
    Added 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.
    Added Reference MITRE https://www.telekom.com/en/company/data-privacy-and-security/news/advisories-504842 [No types assigned]
    Added Reference MITRE https://www.rambus.com/security/software-protocols/tls-toolkit/ [No types assigned]
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2023-24609 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2023-24609 weaknesses.

Exploit Prediction

EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.

0.05 }} 0.01%

score

0.21305

percentile

CVSS31 - Vulnerability Scoring System
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