#VU30526 Input validation error in tvOS - CVE-2019-8637

Vulnerability identifier: #VU30526

Vulnerability risk: Low

CVSSv4.0: 5.7 [CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2019-8637

CWE-ID: CWE-20

Exploitation vector: Local

Exploit availability: No

Vulnerable software:
tvOS
Operating systems & Components / Operating system

Vendor: Apple Inc.

Description

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

An input validation issue was addressed with improved input validation. This issue is fixed in iOS 12.3, tvOS 12.3, watchOS 5.2.1. A malicious application may be able to gain root privileges.

Mitigation
Install update from vendor's website.

Vulnerable software versions

tvOS: 12.0 - 12.2.1

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External links
https://support.apple.com/HT210118
https://support.apple.com/HT210120
https://support.apple.com/HT210122

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Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

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