CVE-2021-30795

Published: Sep 8, 2021Modified: Nov 21, 2024

8.8

Vector

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

Exploitability: 2.8 / Impact: 5.9

Source: NVD

Description

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.

Affected (5)

Products: Apple: Iphone Os, Macos, Safari, Tvos, Watchos

5 products

Configuration A

5 vulnerable

Vulnerable Software	Affected Versions
Apple Iphone Os	Before 14.7
Apple Macos	From 11.0 to 11.5
Apple Safari	Before 14.1.2
Apple Tvos	Before 14.7
Apple Watchos	Before 7.6

Related CWEs

CWE-416

Use After Free

The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.