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[email protected]CVE-2021-30858

HistoryAug 24, 2021 - 7:15 p.m.

CVE-2021-30858

2021-08-2419:15:14

CWE-416

[email protected]

web.nvd.nist.gov

1073

In Wild

cve-2021-30858

use after free

memory management

ios

ipados

macos

arbitrary code execution

maliciously crafted web content

apple

nvd

CVSS2

6.8

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

AV:N/AC:M/Au:N/C:P/I:P/A:P

CVSS3

8.8

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

AI Score

8.9

Confidence

High

EPSS

0.01

Percentile

83.3%

JSON

A use after free issue was addressed with improved memory management. This issue is fixed in iOS 14.8 and iPadOS 14.8, macOS Big Sur 11.6. Processing maliciously crafted web content may lead to arbitrary code execution. Apple is aware of a report that this issue may have been actively exploited.

Affected configurations

Vulners

NVD

Node

macosRange<11.6

iphone_osRange<14.8

VendorProductVersionCPE
applemacos*cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:*
appleiphone_os*cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:*

Vendor	Product	Version	CPE
apple	macos	*	cpe:2.3:o:apple:macos::::::::
apple	iphone_os	*	cpe:2.3:o:apple:iphone_os::::::::

CNA Affected

[
  {
    "product": "macOS",
    "vendor": "Apple",
    "versions": [
      {
        "lessThan": "11.6",
        "status": "affected",
        "version": "unspecified",
        "versionType": "custom"
      }
    ]
  },
  {
    "product": "iOS",
    "vendor": "Apple",
    "versions": [
      {
        "lessThan": "14.8",
        "status": "affected",
        "version": "unspecified",
        "versionType": "custom"
      }
    ]
  }
]