9.3

CVE-2020-27917

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.

Data is provided by the National Vulnerability Database (NVD)
Apple ≫ iCloud SwPlatformwindows Version < 11.5
Apple ≫ iTunes SwPlatformwindows Version < 12.11
Apple ≫ iPadOS Version < 14.2
Apple ≫ iPhone OS Version < 14.2
Apple ≫ macOS Version >= 11.0 < 11.0.1
Apple ≫ tvOS Version < 14.2
Apple ≫ watchOS Version < 7.1
Zu dieser CVE wurde keine CISA KEV oder CERT.AT-Warnung gefunden.
EPSS Metriken
Type Source Score Percentile
EPSS FIRST.org 0.71% 0.699
CVSS Metriken
Source Base Score Exploit Score Impact Score Vector string
nvd@nist.gov 7.8 1.8 5.9
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
nvd@nist.gov 9.3 8.6 10
AV:N/AC:M/Au:N/C:C/I:C/A:C
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 Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.

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