CVE-2019-18222

EUVD-2019-8022
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.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
4.7 MEDIUM
LOCAL
HIGH
LOW
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N
Base Score
CVSS 3.x
EPSS Score
Percentile: 32%
Affected Products (NVD)
VendorProductVersion
armmbed_crypto
𝑥
< 3.0.0
armmbed_tls
𝑥
< 2.7.13
armmbed_tls
2.8.0 ≤
𝑥
< 2.16.4
armmbed_tls
2.17.0 ≤
𝑥
< 2.20.0
debiandebian_linux
10.0
𝑥
= Vulnerable software versions
Debian logo
Debian Releases
Debian Product
Codename
mbedtls
bookworm
2.28.3-1
fixed
bullseye
2.16.9-0.1
fixed
sid
3.6.2-1
fixed
stretch
no-dsa
trixie
2.28.8-1
fixed
Ubuntu logo
Ubuntu Releases
Ubuntu Product
Codename
mbedtls
bionic
needs-triage
eoan
ignored
focal
not-affected
groovy
not-affected
hirsute
not-affected
impish
not-affected
jammy
not-affected
kinetic
not-affected
lunar
not-affected
mantic
not-affected
noble
not-affected
trusty
dne
xenial
needs-triage