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[email protected]NVD:CVE-2019-18222

HistoryJan 23, 2020 - 5:15 p.m.

CVE-2019-18222

2020-01-2317:15:11

CWE-203

[email protected]

web.nvd.nist.gov

CVSS2

1.9

Attack Vector

LOCAL

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

NONE

Availability Impact

NONE

AV:L/AC:M/Au:N/C:P/I:N/A:N

CVSS3

4.7

Attack Vector

LOCAL

Attack Complexity

HIGH

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

NONE

Availability Impact

NONE

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

AI Score

4.8

Confidence

High

EPSS

0.001

Percentile

19.8%

JSON

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.

Affected configurations

Nvd

Node

armmbed_cryptoRange<3.0.0

armmbed_tlsRange<2.7.13

armmbed_tlsRange2.8.0–2.16.4

armmbed_tlsRange2.17.0–2.20.0

Node

fedoraprojectfedoraMatch30

fedoraprojectfedoraMatch31

Node

debiandebian_linuxMatch10.0

VendorProductVersionCPE
armmbed_crypto*cpe:2.3:a:arm:mbed_crypto:*:*:*:*:*:*:*:*
armmbed_tls*cpe:2.3:a:arm:mbed_tls:*:*:*:*:*:*:*:*
fedoraprojectfedora30cpe:2.3:o:fedoraproject:fedora:30:*:*:*:*:*:*:*
fedoraprojectfedora31cpe:2.3:o:fedoraproject:fedora:31:*:*:*:*:*:*:*
debiandebian_linux10.0cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*

Vendor	Product	Version	CPE
arm	mbed_crypto	*	cpe:2.3:a:arm:mbed_crypto::::::::
arm	mbed_tls	*	cpe:2.3:a:arm:mbed_tls::::::::
fedoraproject	fedora	30	cpe:2.3:o:fedoraproject:fedora:30:::::::*
fedoraproject	fedora	31	cpe:2.3:o:fedoraproject:fedora:31:::::::*
debian	debian_linux	10.0	cpe:2.3:o:debian:debian_linux:10.0:::::::*