Executive Summary



This Alert is flagged as TOP 25 Common Weakness Enumeration from CWE/SANS. For more information, you can read this.
Informations
Name CVE-2020-12402 First vendor Publication 2020-07-09
Vendor Cve Last vendor Modification 2020-08-04

Security-Database Scoring CVSS v3

Cvss vector : CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:H/I:N/A:N
Overall CVSS Score 4.4
Base Score 4.4 Environmental Score 4.4
impact SubScore 3.6 Temporal Score 4.4
Exploitabality Sub Score 0.8
 
Attack Vector Local Attack Complexity High
Privileges Required Low User Interaction Required
Scope Unchanged Confidentiality Impact High
Integrity Impact None Availability Impact None
Calculate full CVSS 3.0 Vectors scores

Security-Database Scoring CVSS v2

Cvss vector : (AV:L/AC:H/Au:N/C:P/I:N/A:N)
Cvss Base Score 1.2 Attack Range Local
Cvss Impact Score 2.9 Attack Complexity High
Cvss Expoit Score 1.9 Authentication None Required
Calculate full CVSS 2.0 Vectors scores

Detail

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.

Original Source

Url : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-12402

CWE : Common Weakness Enumeration

% Id Name
100 % CWE-327 Use of a Broken or Risky Cryptographic Algorithm (CWE/SANS Top 25)

CPE : Common Platform Enumeration

TypeDescriptionCount
Application 538
Os 1
Os 2

Sources (Detail)

Source Url
DEBIAN https://www.debian.org/security/2020/dsa-4726
FEDORA https://lists.fedoraproject.org/archives/list/package-announce@lists.fedorapr...
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedorapr...
GENTOO https://security.gentoo.org/glsa/202007-10
MISC https://bugzilla.mozilla.org/show_bug.cgi?id=1631597
https://www.mozilla.org/security/advisories/mfsa2020-24/
SUSE http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00016.html
http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00018.html
http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00027.html
http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00049.html
UBUNTU https://usn.ubuntu.com/4417-1/
https://usn.ubuntu.com/4417-2/

Alert History

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Date Informations
2020-08-04 21:23:15
  • Multiple Updates
2020-08-01 12:27:28
  • Multiple Updates
2020-07-29 21:23:13
  • Multiple Updates
2020-07-27 09:22:41
  • Multiple Updates
2020-07-20 21:23:04
  • Multiple Updates
2020-07-19 09:22:47
  • Multiple Updates
2020-07-19 01:26:54
  • Multiple Updates
2020-07-19 01:25:25
  • Multiple Updates
2020-07-18 21:23:03
  • Multiple Updates
2020-07-18 09:22:46
  • Multiple Updates
2020-07-15 01:26:48
  • Multiple Updates
2020-07-15 01:25:25
  • Multiple Updates
2020-07-14 21:23:04
  • Multiple Updates
2020-07-14 09:22:41
  • Multiple Updates
2020-07-14 05:22:45
  • Multiple Updates
2020-07-13 09:22:42
  • Multiple Updates
2020-07-09 21:22:59
  • First insertion