CVE-2021-30771

CVSS V2 Medium 6.8 CVSS V3 High 7.8
Description
An out-of-bounds write was addressed with improved input validation. This issue is fixed in macOS Big Sur 11.4, iOS 14.6 and iPadOS 14.6, watchOS 7.5, tvOS 14.6. Processing a maliciously crafted font file may lead to arbitrary code execution.
Overview
  • CVE ID
  • CVE-2021-30771
  • Assigner
  • product-security@apple.com
  • Vulnerability Status
  • Analyzed
  • Published Version
  • 2022-03-18T18:15:11
  • Last Modified Date
  • 2022-03-25T19:23:53
Weakness Enumerations
CWE URL
CWE-787 http://cwe.mitre.org/data/definitions/787.html
CPE Configuration (Product)
CPE Vulnerable Operator Version Start Version End
cpe:2.3:o:apple:ipados:*:*:*:*:*:*:*:* 1 OR 14.6
cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:* 1 OR 14.6
cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:* 1 OR 11.0 11.4
cpe:2.3:o:apple:tvos:*:*:*:*:*:*:*:* 1 OR 14.6
cpe:2.3:o:apple:watchos:*:*:*:*:*:*:*:* 1 OR 7.5
CVSS Version 2
  • Version
  • 2.0
  • Vector String
  • AV:N/AC:M/Au:N/C:P/I:P/A:P
  • Access Vector
  • NETWORK
  • Access Compatibility
  • MEDIUM
  • Authentication
  • NONE
  • Confidentiality Impact
  • PARTIAL
  • Integrity Impact
  • PARTIAL
  • Availability Impact
  • PARTIAL
  • Base Score
  • 6.8
  • Severity
  • MEDIUM
  • Exploitability Score
  • 8.6
  • Impact Score
  • 6.4
CVSS Version 3
  • Version
  • 3.1
  • Vector String
  • CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
  • Attack Vector
  • LOCAL
  • Attack Compatibility
  • LOW
  • Privileges Required
  • NONE
  • User Interaction
  • REQUIRED
  • Scope
  • UNCHANGED
  • Confidentiality Impact
  • HIGH
  • Availability Impact
  • HIGH
  • Base Score
  • 7.8
  • Base Severity
  • HIGH
  • Exploitability Score
  • 1.8
  • Impact Score
  • 5.9
References
Reference URL Reference Tags
https://support.apple.com/en-us/HT212529 Vendor Advisory
https://support.apple.com/en-us/HT212528 Vendor Advisory
https://support.apple.com/en-us/HT212532 Vendor Advisory
https://support.apple.com/en-us/HT212533 Vendor Advisory
Sources
Source Name Source URL
NIST https://nvd.nist.gov/vuln/detail/CVE-2021-30771
MITRE https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-30771
History
Created Old Value New Value Data Type Notes
2022-04-04 00:41:56 Added to TrackCVE
2022-12-06 12:46:22 2022-03-18T18:15Z 2022-03-18T18:15:11 CVE Published Date updated
2022-12-06 12:46:22 2022-03-25T19:23:53 CVE Modified Date updated
2022-12-06 12:46:22 Analyzed Vulnerability Status updated