Vulnerability in Trustedfirmware Mbed TLS
CVE-2024-28755
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.
EPSS: 0.004 (33.0th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L.
Affected products
- Trustedfirmware Mbed_tls
- N/a — versions n/a
Weakness classification (CWE)
References
- cve@mitre.org (Vendor Advisory)
- cve@mitre.org (Not Applicable)
- cve@mitre.org (Not Applicable)
- cve@mitre.org (Release Notes)
Frequently asked questions
- What is CVE-2024-28755?
- CVE-2024-28755 is a medium-severity vulnerability in Trustedfirmware Mbed TLS, classified under Inadequate Encryption Strength. CVSS score: 6.5/10. Published 2024-04-03.
- How severe is CVE-2024-28755?
- Medium severity. CVSS v3 base score is 6.5 out of 10.