Remote code execution in Apple iOS



Published: 2021-09-13
Risk Critical
Patch available YES
Number of vulnerabilities 1
CVE ID CVE-2021-30858
CWE ID CWE-416
Exploitation vector Network
Public exploit This vulnerability is being exploited in the wild.
Vulnerable software
Subscribe
Apple iOS
Operating systems & Components / Operating system

iPadOS
Operating systems & Components / Operating system

Vendor Apple Inc.

Security Advisory

This security advisory describes one critical risk vulnerability.

1) Use-after-free

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-2021-30858

CWE-ID: CWE-416 - Use After Free

Exploit availability: No

Description

The vulnerability allows a remote attacker to compromise vulnerable system.

The vulnerability exists due to a use-after-free error when processing HTML content in WebKit. A remote attacker can trick the victim to visit a specially crafted web page, trigger a use-after-free error and execute arbitrary code on the system.

Successful exploitation of the vulnerability may allow an attacker to compromise vulnerable system.

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

Mitigation

Install updates from vendor's website.

Vulnerable software versions

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, 14.5.1 18E212, 14.6 18F72, 14.7 18G69, 14.7.1 18G82

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, 14.5.1 18E212, 14.6 18F72, 14.7 18G69, 14.7 18G70, 14.7.1 18G82

CPE External links

https://support.apple.com/en-us/HT212807

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 this vulnerability?

Yes. This vulnerability is being exploited in the wild.



###SIDEBAR###