CVE-2020-12402

CVE Details

Release Date:

2020-07-09

Description

During RSA key generation, bignum implementations used a variation of the Binary Extended Euclidean Algorithm which entailed significantly input-dependent flow. This allowed an attacker able to perform electromagnetic-based side channel attacks to record traces leading to the recovery of the secret primes. *Note:* An unmodified Firefox browser does not generate RSA keys in normal operation and is not affected, but products built on top of it might. This vulnerability affects Firefox < 78.

See more information about CVE-2020-12402 from MITRE CVE dictionary and NIST NVD

CVSS v3.0 metrics

NOTE: The following CVSS v3.0 metrics and score provided are preliminary and subject to review.

Base Score:	4.4	Base Metrics:	AV:L/AC:H/PR:L/UI:R/S:U/C:H/I:N/A:N
Access Vector:	Local network	Attack Complexity:	High
Privileges Required:	Low	User Interaction:	Required
Scope:	Unchanged	Confidentiality Impact:	High
Integrity Impact:	None	Availability Impact:	None

Errata information

Platform	Errata	Release Date
Oracle Linux version 7 (nspr)	ELSA-2020-4076	2020-10-08
Oracle Linux version 7 (nss)	ELSA-2020-4076	2020-10-08
Oracle Linux version 7 (nss-softokn)	ELSA-2020-4076	2020-10-08
Oracle Linux version 7 (nss-util)	ELSA-2020-4076	2020-10-08
Oracle Linux version 8 (nspr)	ELSA-2020-3280	2020-08-04
Oracle Linux version 8 (nss)	ELSA-2020-3280	2020-08-04

This page is generated automatically and has not been checked for errors or omissions. For clarification or corrections please contact the Oracle Linux ULN team