Vulnerability CVE-2020-9996
Published: 2020-12-08

Description:
A use after free issue was addressed with improved memory management. This issue is fixed in macOS Big Sur 11.0.1, iOS 14.0 and iPadOS 14.0. A malicious application may be able to elevate privileges.

Type:

CWE-416

 (Use After Free)

CVSS2 => (AV:N/AC:M/Au:N/C:P/I:P/A:P)

CVSS Base Score
Impact Subscore
Exploitability Subscore
6.8/10
6.4/10
8.6/10
Exploit range
Attack complexity
Authentication
Remote
Medium
No required
Confidentiality impact
Integrity impact
Availability impact
Partial
Partial
Partial
Affected software
Apple -> Ipad os 
Apple -> Iphone os 
Apple -> Mac os x 

 References:
http://seclists.org/fulldisclosure/2020/Dec/32
https://support.apple.com/en-us/HT211850
https://support.apple.com/en-us/HT211931
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