CVE-2019-9820

CVSS V2 High 7.5 CVSS V3 Critical 9.8
Description
A use-after-free vulnerability can occur in the chrome event handler when it is freed while still in use. This results in a potentially exploitable crash. This vulnerability affects Thunderbird < 60.7, Firefox < 67, and Firefox ESR < 60.7.
Overview
  • CVE ID
  • CVE-2019-9820
  • Assigner
  • security@mozilla.org
  • Vulnerability Status
  • Analyzed
  • Published Version
  • 2019-07-23T14:15:17
  • Last Modified Date
  • 2019-07-26T16:15:30
Weakness Enumerations
CWE URL
CWE-416 http://cwe.mitre.org/data/definitions/416.html
CPE Configuration (Product)
CPE Vulnerable Operator Version Start Version End
cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:* 1 OR 67.0
cpe:2.3:a:mozilla:firefox_esr:*:*:*:*:*:*:*:* 1 OR 60.7
cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:* 1 OR 60.7.0
CVSS Version 2
  • Version
  • 2.0
  • Vector String
  • AV:N/AC:L/Au:N/C:P/I:P/A:P
  • Access Vector
  • NETWORK
  • Access Compatibility
  • LOW
  • Authentication
  • NONE
  • Confidentiality Impact
  • PARTIAL
  • Integrity Impact
  • PARTIAL
  • Availability Impact
  • PARTIAL
  • Base Score
  • 7.5
  • Severity
  • HIGH
  • Exploitability Score
  • 10
  • Impact Score
  • 6.4
CVSS Version 3
  • Version
  • 3.0
  • Vector String
  • CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
  • Attack Vector
  • NETWORK
  • Attack Compatibility
  • LOW
  • Privileges Required
  • NONE
  • User Interaction
  • NONE
  • Scope
  • UNCHANGED
  • Confidentiality Impact
  • HIGH
  • Availability Impact
  • HIGH
  • Base Score
  • 9.8
  • Base Severity
  • CRITICAL
  • Exploitability Score
  • 3.9
  • Impact Score
  • 5.9
References
Reference URL Reference Tags
https://www.mozilla.org/security/advisories/mfsa2019-15/ Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2019-14/ Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2019-13/ Vendor Advisory
https://bugzilla.mozilla.org/show_bug.cgi?id=1536405 Permissions Required
Sources
Source Name Source URL
NIST https://nvd.nist.gov/vuln/detail/CVE-2019-9820
MITRE https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-9820
History
Created Old Value New Value Data Type Notes
2022-05-10 17:40:22 Added to TrackCVE
2022-12-03 23:40:24 2019-07-23T14:15Z 2019-07-23T14:15:17 CVE Published Date updated
2022-12-03 23:40:24 2019-07-26T16:15:30 CVE Modified Date updated
2022-12-03 23:40:24 Analyzed Vulnerability Status updated