CVE-2020-27917

high

Description

A use after free issue was addressed with improved memory management. This issue is fixed in macOS Big Sur 11.0.1, watchOS 7.1, iOS 14.2 and iPadOS 14.2, iCloud for Windows 11.5, tvOS 14.2, iTunes 12.11 for Windows. Processing maliciously crafted web content may lead to code execution.

References

http://seclists.org/fulldisclosure/2020/Dec/32

https://support.apple.com/en-us/HT211928

https://support.apple.com/en-us/HT211929

https://support.apple.com/en-us/HT211930

https://support.apple.com/en-us/HT211931

https://support.apple.com/en-us/HT211933

https://support.apple.com/en-us/HT211935

Details

Source: MITRE

Published: 2020-12-08

Updated: 2021-03-10

Type: CWE-416

Risk Information

CVSS v2

Base Score: 9.3

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

Impact Score: 10

Exploitability Score: 8.6

Severity: HIGH

CVSS v3

Base Score: 7.8

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

Impact Score: 5.9

Exploitability Score: 1.8

Severity: HIGH