VULNERABILITY INTELLIGENCE
CVE-2020-36478
CVSS score7.5 HIGH
EPSS probability1.10%
CISA KEVNot currently listed
Published2021-08-23
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Description
An issue was discovered in Mbed TLS before 2.25.0 (and before 2.16.9 LTS and before 2.7.18 LTS). A NULL algorithm parameters entry looks identical to an array of REAL (size zero) and thus the certificate is considered valid. However, if the parameters do not match in any way, then the certificate should be considered invalid.
Weakness classification
- nvd@nist.gov: CWE-295
Primary references
- cve@mitre.org — Patch, Third Party Advisory
- cve@mitre.org — Exploit, Third Party Advisory
- cve@mitre.org — Release Notes, Third Party Advisory
- cve@mitre.org — Release Notes, Third Party Advisory
- cve@mitre.org — Release Notes, Third Party Advisory
- cve@mitre.org — Mailing List, Third Party Advisory
- cve@mitre.org — Mailing List, Third Party Advisory
- af854a3a-2127-422b-91ae-364da2661108 — Patch, Third Party Advisory
- af854a3a-2127-422b-91ae-364da2661108 — Exploit, Third Party Advisory
- af854a3a-2127-422b-91ae-364da2661108 — Release Notes, Third Party Advisory
- af854a3a-2127-422b-91ae-364da2661108 — Release Notes, Third Party Advisory
- af854a3a-2127-422b-91ae-364da2661108 — Release Notes, Third Party Advisory