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

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MEDIUM

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

Published Sep 26, 2019

5.3

MEDIUM

CVSS 3.1

EPSS 1.77%

Description

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.)

Affected products

Remediation

No remediation recorded yet.

Weaknesses (0)

No CWE recorded.

References (8)

https://euvd.enisa.europa.eu/vulnerability/EUVD-2019-7407
Advisory
https://github.com/ARMmbed/mbedtls/commit/298a43a77ec0ed2c19a8c924ddd8571ef3e65dfd
Patch
https://github.com/ARMmbed/mbedtls/commit/33f66ba6fd234114aa37f0209dac031bb2870a9b
Patch
https://lists.debian.org/debian-lts-announce/2022/12/msg00036.html
mailing-listMailing ListThird Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/CGSKQSGR5SOBRBXDSSPTCDSBB5K3GMPF/
vendor-advisoryMailing ListThird Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/CSFFOROD6IVLADZHNJC2LPDV7FQRP7XB/
vendor-advisoryMailing ListThird Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PEHHH2DOBXB25CAU3Q6E66X723VAYTB5/
vendor-advisoryMailing ListThird Party Advisory
https://tls.mbed.org/tech-updates/security-advisories/mbedtls-security-advisory-2019-10
Vendor Advisory

Link	Providers	Tags
https://euvd.enisa.europa.eu/vulnerability/EUVD-2019-7407		Advisory
https://github.com/ARMmbed/mbedtls/commit/298a43a77ec0ed2c19a8c924ddd8571ef3e65dfd		Patch
https://github.com/ARMmbed/mbedtls/commit/33f66ba6fd234114aa37f0209dac031bb2870a9b		Patch
https://lists.debian.org/debian-lts-announce/2022/12/msg00036.html		mailing-listMailing ListThird Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/CGSKQSGR5SOBRBXDSSPTCDSBB5K3GMPF/		vendor-advisoryMailing ListThird Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/CSFFOROD6IVLADZHNJC2LPDV7FQRP7XB/		vendor-advisoryMailing ListThird Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PEHHH2DOBXB25CAU3Q6E66X723VAYTB5/		vendor-advisoryMailing ListThird Party Advisory
https://tls.mbed.org/tech-updates/security-advisories/mbedtls-security-advisory-2019-10		Vendor Advisory