CVE-2021-30771

2022-03-1817:59:11

apple

www.cve.org

input validation

out-of-bounds write

arbitrary code execution

font file

macos big sur

ios 14.6

ipados 14.6

watchos 7.5

tvos 14.6

AI Score

Confidence

High

EPSS

0.001

Percentile

43.9%

JSON

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.

CNA Affected

[
  {
    "product": "iOS and iPadOS",
    "vendor": "Apple",
    "versions": [
      {
        "lessThan": "14.6",
        "status": "affected",
        "version": "unspecified",
        "versionType": "custom"
      }
    ]
  },
  {
    "product": "macOS",
    "vendor": "Apple",
    "versions": [
      {
        "lessThan": "11.4",
        "status": "affected",
        "version": "unspecified",
        "versionType": "custom"
      }
    ]
  },
  {
    "product": "tvOS",
    "vendor": "Apple",
    "versions": [
      {
        "lessThan": "14.6",
        "status": "affected",
        "version": "unspecified",
        "versionType": "custom"
      }
    ]
  },
  {
    "product": "watchOS",
    "vendor": "Apple",
    "versions": [
      {
        "lessThan": "7.5",
        "status": "affected",
        "version": "unspecified",
        "versionType": "custom"
      }
    ]
  }
]