XNU in the kernel in Apple iOS before 9 does not properly initialize an unspecified data structure, which allows local users to obtain sensi

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

• apple iphone osup to 8.4.1 inclusive
• apple mac os xup to 10.10.5 inclusive
• apple watchos1.0

Other highest-scoring records for the same primary product.

• CVE-2016-4657WebKit in Apple iOS before 9.3.5 allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption) via a crKEV
  85Now
• CVE-2014-4404Heap-based buffer overflow in IOHIDFamily in Apple iOS before 8 and Apple TV before 7 allows attackers to execute arbitrary code in a privilKEV
  76This week
• CVE-2021-30762A use after free issue was addressed with improved memory management.KEV
  68This week
• CVE-2021-30761A memory corruption issue was addressed with improved state management.KEV
  68This week
• CVE-2016-4656The kernel in Apple iOS before 9.3.5 allows attackers to execute arbitrary code in a privileged context or cause a denial of service (memoryKEV
  68This week
• CVE-2021-30666A buffer overflow issue was addressed with improved memory handling.KEV
  66This week

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Root cause

The extension requests broader permissions than its function needs and sends the data it collects out for purposes beyond its stated function.

A representative example of this vulnerability class. Not the vendor's source code; it shows the faulty pattern and its fix.

1{2  "permissions": ["tabs", "<all_urls>"],3  "background": { "service_worker": "analytics.js" }4}

1{2  "permissions": ["activeTab"],3  "host_permissions": ["https://yildiz.example/*"]4}

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.