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5.5

Apple iOS, macOS, tvOS, watchOS may leak kernel memory

CVE-2019-6209 · published 7 years ago
Summary

The iPhone, Mac, Apple TV and Apple Watch operating systems could expose parts of their core system memory to a malicious app. This could let an attacker see how the system is arranged, potentially aiding further attacks. Updating the devices to the latest versions (iOS 12.1.3, macOS 10.14.3, tvOS 12.1.2, watchOS 5.1.3) resolves the issue.

What to do
  • Update apple iphone_os to version 12.1.3 or later.
  • Update apple mac_os_x to version 10.14.3 or later.
  • Update apple tv_os to version 12.1.2 or later.
  • Update apple watchos to version 5.1.3 or later.
Affected software
VendorProductAffected versions
apple iphone_os < 12.1.3
cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:*
apple mac_os_x < 10.14.3
cpe:2.3:o:apple:mac_os_x:*:*:*:*:*:*:*:*
apple tv_os < 12.1.2
cpe:2.3:o:apple:tv_os:*:*:*:*:*:*:*:*
apple watchos < 5.1.3
cpe:2.3:o:apple:watchos:*:*:*:*:*:*:*:*
Original advisory text
An out-of-bounds read issue existed that led to the disclosure of kernel memory. This was addressed with improved input validation. This issue is fixed in iOS 12.1.3, macOS Mojave 10.14.3, tvOS 12....
An out-of-bounds read issue existed that led to the disclosure of kernel memory. This was addressed with improved input validation. This issue is fixed in iOS 12.1.3, macOS Mojave 10.14.3, tvOS 12.1.2, watchOS 5.1.3. A malicious application may be able to determine kernel memory layout.
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
5.5 Medium
Exploitation
4% chance of attack within 30 days
Type
CWE-125Out-of-bounds Read
Timeline
Published5 Mar 2019
Updated23 Oct 2026
First seen29 Sep 2026
Sources
CVE-2019-6209 · NVD
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