CVE-2020-15656

CVSS V2 High 9.3 CVSS V3 High 8.8
Description
JIT optimizations involving the Javascript arguments object could confuse later optimizations. This risk was already mitigated by various precautions in the code, resulting in this bug rated at only moderate severity. This vulnerability affects Firefox ESR < 78.1, Firefox < 79, and Thunderbird < 78.1.
Overview
  • CVE ID
  • CVE-2020-15656
  • Assigner
  • security@mozilla.org
  • Vulnerability Status
  • Analyzed
  • Published Version
  • 2020-08-10T18:15:12
  • Last Modified Date
  • 2023-02-02T22:19:22
Weakness Enumerations
CWE URL
CWE-843 http://cwe.mitre.org/data/definitions/843.html
CPE Configuration (Product)
CPE Vulnerable Operator Version Start Version End
cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:* 1 OR 79.0
cpe:2.3:a:mozilla:firefox_esr:*:*:*:*:*:*:*:* 1 OR 78.1
cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:* 1 OR 78.1
cpe:2.3:o:opensuse:leap:15.2:*:*:*:*:*:*:* 1 OR
CVSS Version 2
  • Version
  • 2.0
  • Vector String
  • AV:N/AC:M/Au:N/C:C/I:C/A:C
  • Access Vector
  • NETWORK
  • Access Compatibility
  • MEDIUM
  • Authentication
  • NONE
  • Confidentiality Impact
  • COMPLETE
  • Integrity Impact
  • COMPLETE
  • Availability Impact
  • COMPLETE
  • Base Score
  • 9.3
  • Severity
  • HIGH
  • Exploitability Score
  • 8.6
  • Impact Score
  • 10
CVSS Version 3
  • Version
  • 3.1
  • Vector String
  • CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
  • Attack Vector
  • NETWORK
  • Attack Compatibility
  • LOW
  • Privileges Required
  • NONE
  • User Interaction
  • REQUIRED
  • Scope
  • UNCHANGED
  • Confidentiality Impact
  • HIGH
  • Availability Impact
  • HIGH
  • Base Score
  • 8.8
  • Base Severity
  • HIGH
  • Exploitability Score
  • 2.8
  • Impact Score
  • 5.9
References
Reference URL Reference Tags
https://www.mozilla.org/security/advisories/mfsa2020-32/ Vendor Advisory
https://bugzilla.mozilla.org/show_bug.cgi?id=1647293 Issue Tracking Permissions Required Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2020-30/ Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2020-33/ Vendor Advisory
http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00025.html Third Party Advisory
https://usn.ubuntu.com/4443-1/
Sources
Source Name Source URL
NIST https://nvd.nist.gov/vuln/detail/CVE-2020-15656
MITRE https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-15656
History
Created Old Value New Value Data Type Notes
2022-05-10 17:20:24 Added to TrackCVE
2022-12-04 20:45:25 2020-08-10T18:15Z 2020-08-10T18:15:12 CVE Published Date updated
2022-12-04 20:45:25 2020-08-18T14:15:12 CVE Modified Date updated
2022-12-04 20:45:25 Undergoing Analysis Vulnerability Status updated
2023-02-02 23:10:39 2023-02-02T22:19:22 CVE Modified Date updated
2023-02-02 23:10:39 Undergoing Analysis Analyzed Vulnerability Status updated