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3.3

iOS 12.4/tvOS 12.4 apps may block website access

CVE-2019-8698 · published 6 years ago
Summary

Older versions of iOS and tvOS could be tricked by a malicious app to prevent users from reaching certain websites. The weakness lies in how the system checks an app's permission to perform network actions. Updating devices to iOS 12.4 or later, and tvOS 12.4 or later, resolves the problem.

What to do
  • Update apple iphone_os to version 12.4 or later.
  • Update apple tvos to version 12.4 or later.
Affected software
VendorProductAffected versions
apple iphone_os < 12.4
cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:*
apple tvos < 12.4
cpe:2.3:o:apple:tvos:*:*:*:*:*:*:*:*
Original advisory text
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 app...
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.
References
Fix within
Internet-facing 60 days
Internal At next upgrade
  • Not known to be exploited
  • Needs hands-on effort to exploit (estimated)
  • Gives an attacker partial control (estimated)
Severity
3.3 Low
Exploitation
<1% chance of attack within 30 days
Type
CWE-20Improper Input Validation
Timeline
Published18 Dec 2019
Updated4 Nov 2026
First seen29 Sep 2026
Sources
CVE-2019-8698 · NVD
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