CVE-2020-12402

CVSS V2 Low 1.2 CVSS V3 Medium 4.4
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.
Overview
  • CVE ID
  • CVE-2020-12402
  • Assigner
  • security@mozilla.org
  • Vulnerability Status
  • Analyzed
  • Published Version
  • 2020-07-09T15:15:10
  • Last Modified Date
  • 2022-01-04T16:38:52
Weakness Enumerations
CWE URL
CWE-203 http://cwe.mitre.org/data/definitions/203.html
CPE Configuration (Product)
CPE Vulnerable Operator Version Start Version End
cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:* 1 OR 78.0
cpe:2.3:o:fedoraproject:fedora:32:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:opensuse:leap:15.1:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:opensuse:leap:15.2:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:* 1 OR
CVSS Version 2
  • Version
  • 2.0
  • Vector String
  • AV:L/AC:H/Au:N/C:P/I:N/A:N
  • Access Vector
  • LOCAL
  • Access Compatibility
  • HIGH
  • Authentication
  • NONE
  • Confidentiality Impact
  • PARTIAL
  • Integrity Impact
  • NONE
  • Availability Impact
  • NONE
  • Base Score
  • 1.2
  • Severity
  • LOW
  • Exploitability Score
  • 1.9
  • Impact Score
  • 2.9
CVSS Version 3
  • Version
  • 3.1
  • Vector String
  • CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:H/I:N/A:N
  • Attack Vector
  • LOCAL
  • Attack Compatibility
  • HIGH
  • Privileges Required
  • LOW
  • User Interaction
  • REQUIRED
  • Scope
  • UNCHANGED
  • Confidentiality Impact
  • HIGH
  • Availability Impact
  • NONE
  • Base Score
  • 4.4
  • Base Severity
  • MEDIUM
  • Exploitability Score
  • 0.8
  • Impact Score
  • 3.6
References
Reference URL Reference Tags
https://www.mozilla.org/security/advisories/mfsa2020-24/ Vendor Advisory
https://bugzilla.mozilla.org/show_bug.cgi?id=1631597 Issue Tracking Permissions Required Vendor Advisory
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
Sources
Source Name Source URL
NIST https://nvd.nist.gov/vuln/detail/CVE-2020-12402
MITRE https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-12402
History
Created Old Value New Value Data Type Notes
2022-05-10 06:39:10 Added to TrackCVE
2022-12-04 19:18:40 2020-07-09T15:15Z 2020-07-09T15:15:10 CVE Published Date updated
2022-12-04 19:18:40 2022-01-04T16:38:52 CVE Modified Date updated
2022-12-04 19:18:40 Analyzed Vulnerability Status updated