Vulnerability in Arm Mbed_crypto
CVE-2019-18222
The ECDSA signature implementation in ecdsa.c in Arm Mbed Crypto 2.1 and Mbed TLS through 2.19.1 does not reduce the blinded scalar before computing the inverse, which allows a local attacker to recover the private key via side-channel att…
EPSS: 0.003 (26.3th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 4.7 (Medium). Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N.
Affected products
- Arm Mbed_crypto
- Arm Mbed_tls
- Debian Debian_linux — versions 10.0
- Fedoraproject Fedora — versions 30, 31
- N/a — versions n/a
Weakness classification (CWE)
References
- cve@mitre.org (Vendor Advisory)
- cve@mitre.org (Vendor Advisory)
- cve@mitre.org (vendor-advisory, Mailing List, Third Party Advisory)
- cve@mitre.org (vendor-advisory, Mailing List, Third Party Advisory)
- cve@mitre.org (mailing-list, Mailing List, Third Party Advisory)
Frequently asked questions
- What is CVE-2019-18222?
- CVE-2019-18222 is a medium-severity vulnerability in Arm Mbed_crypto, classified under Observable Discrepancy. CVSS score: 4.7/10. Published 2020-01-23.
- How severe is CVE-2019-18222?
- Medium severity. CVSS v3 base score is 4.7 out of 10.