CVE-2019-18222

Description

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 attacks.

References

https://tls.mbed.org/tech-updates/security-advisories/mbedtls-security-advisory-2019-12

https://tls.mbed.org/tech-updates/security-advisories

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/NGDACU65MYZXXVPQP2EBHUJGOR4RWLVY/

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/A3GWQNONS7GRORXZJ7MOJFUEJ2ZJ4OUW/

https://lists.debian.org/debian-lts-announce/2022/12/msg00036.html

Details

Source: Mitre, NVD

Risk Information

CVSS v2

CVSS v3