CVE-2019-18222
high
CVSS v3
—
CVSS v2
—
VIR risk
8.0
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.
Predictions
Exploit likelihood
20%
Patch ETA
—
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
Vendor advisory: debian — https://security-tracker.debian.org/tracker/CVE-2019-18222
Vendor advisory: arch — https://security.archlinux.org/ASA-202003-7
OS impact
| OS | Version | Status | Fixed in |
|---|---|---|---|
| arch | fixed | 2.16.5-1 | |
| debian | bookworm | fixed | 2.16.4-1 |
| debian | bullseye | fixed | 2.16.4-1 |
| debian | forky | fixed | 2.16.4-1 |
| debian | sid | fixed | 2.16.4-1 |
| debian | trixie | fixed | 2.16.4-1 |
References
Verify integrity in audit chain (admin only). AS-IS.