CVE-2019-18222 - CVE House
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Status published Medium CVE-2019-18222

The ECDSA signature implementation in ecdsa.c in Arm Mbed Crypto...

Vulnerability 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.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

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Credits & Attribution

No credits recorded in the NVD database.

References

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Affected Vendor

Affected Software

mbed crypto, mbed tls, fedora, debian linux
Vulnerable Versions:
0, 2.8.0, 2.17.0, 30, 31, 10.0

Timeline

Official Publish: January 23rd, 2020
Last Modified: August 5th, 2024
Added to House: July 20th, 2026

CVSS Vectors

V3: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N

Weaknesses (CWE)

No CWE data available

MITRE ATT&CK TTPs

No associated TTPs found for this vulnerability.