CVE Vulnerability

CVE-2020-12402

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.

1.2 /10

CVSS v2.0 :

V3 Legend

Vector :

Exploitability : 1.9 / Impact : 2.9

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Confidentiality Impact PARTIAL

Integrity Impact NONE

Availability Impact NONE

Scope

4.4 /10

CVSS v3.0 : MEDIUM

V3 Legend

Vector :

Exploitability : 0.8 / Impact : 3.6

Attack Vector LOCAL

Attack Complexity HIGH

Privileges Required LOW

User Interaction REQUIRED

Confidentiality Impact HIGH

Integrity Impact NONE

Availability Impact NONE

Scope UNCHANGED

References
Link Resource
https://www.mozilla.org/security/advisories/mfsa2020-24/ Vendor Advisory
https://bugzilla.mozilla.org/show_bug.cgi?id=1631597 Issue Tracking Permissions Required
http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00016.html Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00018.html Third Party Advisory
https://usn.ubuntu.com/4417-1/ Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00027.html Third Party Advisory
https://www.debian.org/security/2020/dsa-4726 Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/UWVDJRARXNWWWTCGMM63EXLQHH2LNOXO/ Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00049.html Third Party Advisory
https://security.gentoo.org/glsa/202007-10 Third Party Advisory
https://usn.ubuntu.com/4417-2/ Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/RFL6UNFK4MG2WDXLMLFAEIUSM5EUK7CG/ Third Party Advisory
https://lists.debian.org/debian-lts-announce/2020/09/msg00029.html Mailing List Third Party Advisory
Configurations

Configuration 1

cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:*
cpe:2.3:o:opensuse:leap:15.1:*:*:*:*:*:*:*
cpe:2.3:o:fedoraproject:fedora:32:*:*:*:*:*:*:*
cpe:2.3:o:opensuse:leap:15.2:*:*:*:*:*:*:*
cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
Information

Published : 2020-07-09 03:15

Updated : 2022-01-04 04:38

NVD link : CVE-2020-12402

Mitre link : CVE-2020-12402

Products Affected
No products.
CWE
CWE-203