Vulnerability Monitor

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CVE-2021-30795

A use after free issue was addressed with improved memory management. This issue is fixed in iOS 14.7, Safari 14.1.2, macOS Big Sur 11.5, watchOS 7.6, tvOS 14.7. Processing maliciously crafted web content may lead to arbitrary code execution.

Published

2021-09-08T14:15:11.613

Last Modified

2024-11-21T06:04:44.160

Status

Modified

Source

[email protected]

Severity

CVSSv3.1: 8.8 (HIGH)

CVSSv2 Vector

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

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

Exploitability Score

8.6

Impact Score

10.0

Weaknesses

Type: Primary
CWE-416

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Application	apple	safari	< 14.1.2	Yes
Operating System	apple	iphone_os	< 14.7	Yes
Operating System	apple	macos	< 11.5	Yes
Operating System	apple	tvos	< 14.7	Yes
Operating System	apple	watchos	< 7.6	Yes

References

https://support.apple.com/en-us/HT212601 Vendor Advisory ([email protected])
https://support.apple.com/en-us/HT212602 Vendor Advisory ([email protected])
https://support.apple.com/en-us/HT212604 Vendor Advisory ([email protected])
https://support.apple.com/en-us/HT212605 Vendor Advisory ([email protected])
https://support.apple.com/en-us/HT212606 Vendor Advisory ([email protected])
https://support.apple.com/en-us/HT212601 Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://support.apple.com/en-us/HT212602 Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://support.apple.com/en-us/HT212604 Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://support.apple.com/en-us/HT212605 Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://support.apple.com/en-us/HT212606 Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)