CVE-2021-23977

CVSS V2 Low 2.6 CVSS V3 Medium 5.3
Description
Firefox for Android suffered from a time-of-check-time-of-use vulnerability that allowed a malicious application to read sensitive data from application directories. Note: This issue is only affected Firefox for Android. Other operating systems are unaffected. This vulnerability affects Firefox < 86.
Overview
  • CVE ID
  • CVE-2021-23977
  • Assigner
  • security@mozilla.org
  • Vulnerability Status
  • Analyzed
  • Published Version
  • 2021-02-26T03:15:14
  • Last Modified Date
  • 2022-05-27T18:20:24
Weakness Enumerations
CWE URL
CWE-367 http://cwe.mitre.org/data/definitions/367.html
CPE Configuration (Product)
CPE Vulnerable Operator Version Start Version End
cpe:2.3:a:mozilla:firefox:*:*:*:*:*:android:*:* 1 OR 86.0
CVSS Version 2
  • Version
  • 2.0
  • Vector String
  • AV:N/AC:H/Au:N/C:P/I:N/A:N
  • Access Vector
  • NETWORK
  • Access Compatibility
  • HIGH
  • Authentication
  • NONE
  • Confidentiality Impact
  • PARTIAL
  • Integrity Impact
  • NONE
  • Availability Impact
  • NONE
  • Base Score
  • 2.6
  • Severity
  • LOW
  • Exploitability Score
  • 4.9
  • Impact Score
  • 2.9
CVSS Version 3
  • Version
  • 3.1
  • Vector String
  • CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:N/A:N
  • Attack Vector
  • NETWORK
  • Attack Compatibility
  • HIGH
  • Privileges Required
  • NONE
  • User Interaction
  • REQUIRED
  • Scope
  • UNCHANGED
  • Confidentiality Impact
  • HIGH
  • Availability Impact
  • NONE
  • Base Score
  • 5.3
  • Base Severity
  • MEDIUM
  • Exploitability Score
  • 1.6
  • Impact Score
  • 3.6
References
Reference URL Reference Tags
https://bugzilla.mozilla.org/show_bug.cgi?id=1684761 Issue Tracking Permissions Required Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2021-07/ Release Notes Vendor Advisory
https://security.gentoo.org/glsa/202104-10
Sources
Source Name Source URL
NIST https://nvd.nist.gov/vuln/detail/CVE-2021-23977
MITRE https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-23977
History
Created Old Value New Value Data Type Notes
2022-05-10 07:13:30 Added to TrackCVE
2022-12-05 22:51:44 2021-02-26T03:15Z 2021-02-26T03:15:14 CVE Published Date updated
2022-12-05 22:51:44 2022-05-27T18:20:24 CVE Modified Date updated
2022-12-05 22:51:44 Analyzed Vulnerability Status updated