Vulnerability in Arm Mbed_tls
CVE-2021-45451
In Mbed TLS before 3.1.0, psa_aead_generate_nonce allows policy bypass or oracle-based decryption when the output buffer is at memory locations accessible to an untrusted application.
Vulnerability class: POODLE (CVE-2014-3566)
EPSS: 0.009 (56.5th 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:H/I:N/A:N.
Affected products
- Arm Mbed_tls
- Fedoraproject Fedora — versions 36, 37
- N/a — versions n/a
Weakness classification (CWE)
References
- cve@mitre.org (Patch, Third Party Advisory, Release Notes)
- cve@mitre.org (vendor-advisory)
- cve@mitre.org (vendor-advisory)
Frequently asked questions
- What is CVE-2021-45451?
- CVE-2021-45451 is a high-severity vulnerability in Arm Mbed_tls, classified under Use of a Broken or Risky Cryptographic Algorithm. CVSS score: 7.5/10. Published 2021-12-21.
- How severe is CVE-2021-45451?
- High severity. CVSS v3 base score is 7.5 out of 10.