Resource exhaustion in Trustedfirmware Mbed_tls

CVE-2024-23744

An issue was discovered in Mbed TLS 3.5.1. There is persistent handshake denial if a client sends a TLS 1.3 ClientHello without extensions.

Vulnerability class: DoS (Denial of Service)

EPSS: 0.000 (15.6th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

Affected products

Weakness classification (CWE)

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2024-23744?
CVE-2024-23744 is a high-severity vulnerability in Trustedfirmware Mbed_tls, classified under Uncontrolled Resource Consumption. CVSS score: 7.5/10. Published 2024-01-21.
How severe is CVE-2024-23744?
High severity. CVSS v3 base score is 7.5 out of 10.
Is CVE-2024-23744 known to be exploited?
2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.