CVE-2021-29964

CVSS V2 Medium 5.8 CVSS V3 High 7.1
Description
A locally-installed hostile program could send `WM_COPYDATA` messages that Firefox would process incorrectly, leading to an out-of-bounds read. *This bug only affects Firefox on Windows. Other operating systems are unaffected.*. This vulnerability affects Thunderbird < 78.11, Firefox < 89, and Firefox ESR < 78.11.
Overview
  • CVE ID
  • CVE-2021-29964
  • Assigner
  • security@mozilla.org
  • Vulnerability Status
  • Analyzed
  • Published Version
  • 2021-06-24T14:15:10
  • Last Modified Date
  • 2021-06-30T20:56:41
Weakness Enumerations
CWE URL
CWE-125 http://cwe.mitre.org/data/definitions/125.html
CPE Configuration (Product)
CPE Vulnerable Operator Version Start Version End
AND
cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:* 1 OR 89.0
cpe:2.3:a:mozilla:firefox_esr:*:*:*:*:*:*:*:* 1 OR 78.11
cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:* 1 OR 78.11
cpe:2.3:o:microsoft:windows:-:*:*:*:*:*:*:* 0 OR
CVSS Version 2
  • Version
  • 2.0
  • Vector String
  • AV:N/AC:M/Au:N/C:P/I:N/A:P
  • Access Vector
  • NETWORK
  • Access Compatibility
  • MEDIUM
  • Authentication
  • NONE
  • Confidentiality Impact
  • PARTIAL
  • Integrity Impact
  • NONE
  • Availability Impact
  • PARTIAL
  • Base Score
  • 5.8
  • Severity
  • MEDIUM
  • Exploitability Score
  • 8.6
  • Impact Score
  • 4.9
CVSS Version 3
  • Version
  • 3.1
  • Vector String
  • CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:H
  • Attack Vector
  • LOCAL
  • Attack Compatibility
  • LOW
  • Privileges Required
  • NONE
  • User Interaction
  • REQUIRED
  • Scope
  • UNCHANGED
  • Confidentiality Impact
  • HIGH
  • Availability Impact
  • HIGH
  • Base Score
  • 7.1
  • Base Severity
  • HIGH
  • Exploitability Score
  • 1.8
  • Impact Score
  • 5.2
References
Reference URL Reference Tags
https://bugzilla.mozilla.org/show_bug.cgi?id=1706501 Permissions Required Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2021-23/ Release Notes Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2021-24/ Release Notes Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2021-26/ Release Notes Vendor Advisory
Sources
Source Name Source URL
NIST https://nvd.nist.gov/vuln/detail/CVE-2021-29964
MITRE https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-29964
History
Created Old Value New Value Data Type Notes
2022-05-10 07:09:18 Added to TrackCVE
2022-12-05 04:56:59 2021-06-24T14:15Z 2021-06-24T14:15:10 CVE Published Date updated
2022-12-05 04:56:59 2021-06-30T20:56:41 CVE Modified Date updated
2022-12-05 04:56:59 Analyzed Vulnerability Status updated