# CVE-2016-4669: Code injection in n/a

> Local attackers can execute arbitrary code with elevated privileges or crash the system due to improper handling of MIG code in the Apple kernel.

- **Severity:** High 7.8 (`CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Local or same network only
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 20 Feb 2017
- **Updated:** 6 Aug 2024
- **Also known as:** GHSA-q94r-c3hr-hh25

## What is CVE-2016-4669?

CVE-2016-4669 is a high-severity code injection vulnerability in Apple Iphone Os, published on 20 Feb 2017. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

An issue was discovered in certain Apple products. iOS before 10.1 is affected. macOS before 10.12.1 is affected. tvOS before 10.0.1 is affected. watchOS before 3.1 is affected. The issue involves the "Kernel" component. It allows local users to execute arbitrary code in a privileged context or cause a denial of service (MIG code mishandling and system crash) via unspecified vectors.

Weakness: CWE-20 (Improper Input Validation)

## Which versions are affected by CVE-2016-4669?

It affects 4 products.


Products: Apple Iphone Os, Apple Mac Os X, Apple Tvos, Apple Watchos.

## How do I fix CVE-2016-4669?

No fix has been published for CVE-2016-4669 yet. Limit exposure of the affected software until one is available.

## Is CVE-2016-4669 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2016-4669 exists.

Public exploit code:

- Safari Webkit JIT Exploit for iOS 7.1.2 (metasploit)
- Apple OS X/iOS - 'mach_ports_register' Multiple Memory Safety s (exploitdb)
- 不完美的利用代码，只能用于学习:) (github_poc): https://github.com/i-o-s/CVE-2016-4669

## Other vulnerabilities in Apple Iphone Os

- [CVE-2021-30666](https://insights.sbomify.com/CVE-2021-30666/): Apple iOS WebKit Buffer Overflow (high 8.8, exploited in the wild)
- [CVE-2021-30761](https://insights.sbomify.com/CVE-2021-30761/): Apple iOS WebKit Memory Corruption (high 8.8, exploited in the wild)
- [CVE-2021-30762](https://insights.sbomify.com/CVE-2021-30762/): Apple iOS WebKit Use-After-Free (high 8.8, exploited in the wild)
- [CVE-2016-4657](https://insights.sbomify.com/CVE-2016-4657/): Apple iOS Webkit Memory Corruption (high 8.8, exploited in the wild)
- [CVE-2019-7286](https://insights.sbomify.com/CVE-2019-7286/): Apple Multiple Products Memory Corruption (high 7.8, exploited in the wild)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2016-4669 and fix it if it is affected.

What it is: CVE-2016-4669 is a high-severity code injection vulnerability in Apple Iphone Os, published on 20 Feb 2017. It can only be exploited from the same machine or local network, with no action from the victim.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2016-4669 exists.

Affected product: Apple Iphone Os. No package-level version data is available, so check the vendor advisory linked from the reference page.

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2016-4669/ (Markdown: https://insights.sbomify.com/CVE-2016-4669/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2016-4669
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2016-4669
- OSV: https://osv.dev/vulnerability/CVE-2016-4669

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From sbomify Insights: https://insights.sbomify.com/CVE-2016-4669/
Summaries are generated and may contain mistakes; the official description above is the record.