SB2019121837 - Multiple vulnerabilities in Apple tvOS

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Main Vulnerability Database SB2019121837

SB2019121837 - Multiple vulnerabilities in Apple tvOS

Published: December 18, 2019 Updated: July 17, 2020

Security Bulletin ID SB2019121837
Severity
High
Patch available
YES
Number of vulnerabilities 2
Exploitation vector Remote access
Highest impact Code execution

Breakdown by Severity

High 50% Low 50%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 2 secuirty vulnerabilities.


1) Use-after-free (CVE-ID: CVE-2019-8647)

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

A use after free issue was addressed with improved memory management. This issue is fixed in iOS 12.4, tvOS 12.4, watchOS 5.3. A remote attacker may be able to cause arbitrary code execution.


2) Input validation error (CVE-ID: CVE-2019-8698)

The vulnerability allows a local non-authenticated attacker to perform service disruption.

A validation issue existed in the entitlement verification. This issue was addressed with improved validation of the process entitlement. This issue is fixed in iOS 12.4, tvOS 12.4. A malicious application may be able to restrict access to websites.


Remediation

Install update from vendor's website.

References