Vulnerability Description
An issue was discovered in Mbed TLS 3.5.x before 3.6.0. When an SSL context was reset with the mbedtls_ssl_session_reset() API, the maximum TLS version to be negotiated was not restored to the configured one. An attacker was able to prevent an Mbed TLS server from establishing any TLS 1.3 connection, potentially resulting in a Denial of Service or forced version downgrade from TLS 1.3 to TLS 1.2.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Arm | Mbed Tls | >= 3.5.0, <= 3.6.0 |
Related Weaknesses (CWE)
References
- https://github.com/Mbed-TLS/mbedtls/releases/tag/v3.6.0Release Notes
- https://github.com/hey3eNot Applicable
- https://hey3e.github.ioNot Applicable
- https://mbed-tls.readthedocs.io/en/latest/tech-updates/security-advisories/Vendor Advisory
- https://github.com/Mbed-TLS/mbedtls/releases/tag/v3.6.0Release Notes
- https://github.com/hey3eNot Applicable
- https://hey3e.github.ioNot Applicable
- https://mbed-tls.readthedocs.io/en/latest/tech-updates/security-advisories/Vendor Advisory
FAQ
What is CVE-2024-28755?
CVE-2024-28755 is a vulnerability with a CVSS score of 6.5 (MEDIUM). An issue was discovered in Mbed TLS 3.5.x before 3.6.0. When an SSL context was reset with the mbedtls_ssl_session_reset() API, the maximum TLS version to be negotiated was not restored to the configu...
How severe is CVE-2024-28755?
CVE-2024-28755 has been rated MEDIUM with a CVSS base score of 6.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2024-28755?
Check the references section above for vendor advisories and patch information. Affected products include: Arm Mbed Tls.