Vulnerability identifier: #VU30265

Vulnerability risk: High

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]

CVE-ID: CVE-2020-9818

CWE-ID: CWE-787

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
iPadOS
Operating systems & Components / Operating system

Vendor: Apple Inc.

Description

The vulnerability allows a remote non-authenticated attacker to execute arbitrary code.

An out-of-bounds write issue was addressed with improved bounds checking. This issue is fixed in iOS 13.5 and iPadOS 13.5, iOS 12.4.7, watchOS 6.2.5. Processing a maliciously crafted mail message may lead to unexpected memory modification or application termination.

Mitigation
Install update from vendor's website.

Vulnerable software versions

iPadOS: 13.1.1 - 13.1.3, 13.2 - 13.2.3, 13.3 - 13.3.1, 13.4 - 13.4.1

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External links
http://support.apple.com/HT211168
http://support.apple.com/HT211169
http://support.apple.com/HT211175

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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.