CVE-2019-16910

Arm Mbed TLS before 2.19.0 and Arm Mbed Crypto before 2.0.0, when deterministic ECDSA is enabled, use an RNG with insufficient entropy for blinding, which might allow an attacker to recover a private key via side-channel attacks if a victim signs the same message many times. (For Mbed TLS, the fix is also available in versions 2.7.12 and 2.16.3.)

CVSS v3.0 5.3 MEDIUM
CVSS v2.0 2.6 LOW

5.3^/10

CVSS v3.0 : MEDIUM

Vector :

Exploitability : 1.6 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity HIGH

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact HIGH

Integrity Impact NONE

Availability Impact NONE

Scope UNCHANGED

2.6^/10

CVSS v2.0 : LOW

Vector : AV:N/AC:H/Au:N/C:P/I:N/A:N

Exploitability : 4.9 / Impact : 2.9

Access Vector NETWORK

Access Complexity HIGH

Authentication NONE

Confidentiality Impact PARTIAL

Integrity Impact NONE

Availability Impact NONE

References

Link	Resource
https://tls.mbed.org/tech-updates/security-advisories/mbedtls-security-advisory-2019-10	Vendor Advisory
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/PEHHH2DOBXB25CAU3Q6E66X723VAYTB5/	Third Party Advisory
https://github.com/ARMmbed/mbedtls/commit/33f66ba6fd234114aa37f0209dac031bb2870a9b
https://github.com/ARMmbed/mbedtls/commit/298a43a77ec0ed2c19a8c924ddd8571ef3e65dfd
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/CSFFOROD6IVLADZHNJC2LPDV7FQRP7XB/
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/CGSKQSGR5SOBRBXDSSPTCDSBB5K3GMPF/

Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:arm:mbed_tls::::::::
	cpe:2.3:a:arm:mbed_crypto::::::::
	cpe:2.3:a:arm:mbed_tls::::::::
	cpe:2.3:a:arm:mbed_tls::::::::

Configuration 2 (hide)

cpe:2.3:o:fedoraproject:fedora:31:*:*:*:*:*:*:*

Information

Published : 2019-09-26 13:15

Updated : 2021-07-21 11:39

NVD link : CVE-2019-16910

Mitre link : CVE-2019-16910

JSON object : View

Products Affected

fedoraproject

fedora

arm

mbed_tls
mbed_crypto

CWE

CWE-200

Exposure of Sensitive Information to an Unauthorized Actor

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