Vulnerability identifier: #VU30521

Vulnerability risk: High

CVSSv3.1: 7.7 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2019-8553

CWE-ID: CWE-119

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
tvOS
Operating systems & Components / Operating system

Vendor: Apple Inc.

Description

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

A memory corruption issue was addressed with improved validation. This issue is fixed in iOS 12.2, tvOS 12.2, watchOS 5.2. Clicking a malicious SMS link may lead to arbitrary code execution.

Mitigation
Install update from vendor's website.

Vulnerable software versions

tvOS: 12.0 - 12.1.2

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External links
http://support.apple.com/HT209599
http://support.apple.com/HT209601
http://support.apple.com/HT209602

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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?

No. We are not aware of malware exploiting this vulnerability.