Multiple vulnerabilities in Apple iOS and iPadOS 14.x

Published: 2021-05-03

Security Advisory



1) Buffer overflow


Risk: Critical


CVSSv3.1: 8.4 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:H/RL:O/RC:C] [PCI]


CVE-ID: CVE-2021-30665


CWE-ID: CWE-119 - Improper Restriction of Operations within the Bounds of a Memory Buffer


Exploit availability: No


Description

The vulnerability allows a remote attacker to execute arbitrary code on the target system.


The vulnerability exists due to a boundary error in WebKit. A remote attacker can create a specially crafted web page, trick the victim into opening it, trigger memory corruption and execute arbitrary code on the target system.


Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.


Note, the vulnerability is being actively exploited in the wild.


Mitigation

Install update from vendor's website.


Vulnerable software versions

iPadOS: 14.0 18A373, 14.0.1 18A393, 14.1 18A8395, 14.2 18B92, 14.2 18B111, 14.3 18C66, 14.4 18D52, 14.4.1 18D61, 14.4.2 18D70, 14.5 18E199


Apple iOS: 14.0 18A373, 14.0.1 18A393, 14.1 18A8395, 14.2 18B92, 14.2 18B111, 14.2.1 18B121, 14.3 18C66, 14.4 18D52, 14.4.1 18D61, 14.4.2 18D70, 14.5 18E199


CPE
External links

https://support.apple.com/en-us/HT212336


Q & A


Can this vulnerability be exploited remotely?


Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.


Is there known malware, which exploits ..