Vulnerability Monitor

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CVE-2021-1817

A memory corruption issue was addressed with improved state management. This issue is fixed in macOS Big Sur 11.3, iOS 14.5 and iPadOS 14.5, watchOS 7.4, tvOS 14.5. Processing maliciously crafted web content may lead to arbitrary code execution.

Published

2021-09-08T15:15:09.940

Last Modified

2024-11-21T05:45:10.310

Status

Modified

Source

[email protected]

Severity

CVSSv3.1: 8.8 (HIGH)

CVSSv2 Vector

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

Access Vector: NETWORK
Access Complexity: MEDIUM
Authentication: NONE
Confidentiality Impact: PARTIAL
Integrity Impact: PARTIAL
Availability Impact: PARTIAL

Exploitability Score

8.6

Impact Score

6.4

Weaknesses

Type: Primary
CWE-787

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Operating System	apple	ipados	< 14.5	Yes
Operating System	apple	iphone_os	< 14.5	Yes
Operating System	apple	macos	< 11.3	Yes
Operating System	apple	tvos	< 14.5	Yes
Operating System	apple	watchos	< 7.4	Yes

References

https://support.apple.com/en-us/HT212317 Vendor Advisory ([email protected])
https://support.apple.com/en-us/HT212323 Vendor Advisory ([email protected])
https://support.apple.com/en-us/HT212324 Vendor Advisory ([email protected])
https://support.apple.com/en-us/HT212325 Vendor Advisory ([email protected])
https://support.apple.com/en-us/HT212317 Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://support.apple.com/en-us/HT212323 Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://support.apple.com/en-us/HT212324 Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://support.apple.com/en-us/HT212325 Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)