# CVE-2011-0206: Memory corruption in n/a

> Buffer overflow in ICU allows attackers to execute arbitrary code or crash applications via uppercase strings on Mac OS X.

- **Severity:** High 7.5 (`AV:N/AC:L/Au:N/C:P/I:P/A:P`)
- **Exploited in the wild:** Not known
- **Login needed:** Not stated
- **Attackable:** Not stated
- **Victim action needed:** Not stated
- **Fix available:** No
- **Published:** 24 Jun 2011
- **Updated:** 6 Aug 2024
- **Also known as:** GHSA-56mw-6mm9-crqj

## What is CVE-2011-0206?

CVE-2011-0206 is a high-severity memory corruption vulnerability in Apple Mac Os X, published on 24 Jun 2011. 

### Official description

Buffer overflow in International Components for Unicode (ICU) in Apple Mac OS X before 10.6.8 allows context-dependent attackers to execute arbitrary code or cause a denial of service (application crash) via vectors involving uppercase strings.

Weakness: CWE-119 (Improper Restriction of Operations within the Bounds of a Memory Buffer)

## Which versions are affected by CVE-2011-0206?

It affects 2 products.


Products: Apple Mac Os X, Apple Mac Os X Server.

## How do I fix CVE-2011-0206?

No fix has been published for CVE-2011-0206 yet. Limit exposure of the affected software until one is available.

## Is CVE-2011-0206 being exploited?

There is no known exploitation of CVE-2011-0206 in the wild and no public exploit code.

## Other vulnerabilities in Apple Mac Os X

- [CVE-2014-7169](https://insights.sbomify.com/CVE-2014-7169/): GNU Bourne-Again Shell (Bash) Arbitrary Code Execution (critical 9.8, exploited in the wild)
- [CVE-2014-6271](https://insights.sbomify.com/CVE-2014-6271/): GNU Bourne-Again Shell (Bash) Arbitrary Code Execution (critical 9.8, exploited in the wild)
- [CVE-2012-1823](https://insights.sbomify.com/CVE-2012-1823/): PHP-CGI Query String Parameter (critical 9.8, exploited in the wild)
- [CVE-2021-30713](https://insights.sbomify.com/CVE-2021-30713/): Apple macOS Unspecified (high 7.8, exploited in the wild)
- [CVE-2019-8526](https://insights.sbomify.com/CVE-2019-8526/): Apple macOS Use-After-Free (high 7.8, exploited in the wild)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2011-0206 and fix it if it is affected.

What it is: CVE-2011-0206 is a high-severity memory corruption vulnerability in Apple Mac Os X, published on 24 Jun 2011. 
Exploitation: There is no known exploitation of CVE-2011-0206 in the wild and no public exploit code.

Affected product: Apple Mac Os X. 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-2011-0206/ (Markdown: https://insights.sbomify.com/CVE-2011-0206/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2011-0206
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2011-0206
- OSV: https://osv.dev/vulnerability/CVE-2011-0206

---
From sbomify Insights: https://insights.sbomify.com/CVE-2011-0206/
Summaries are generated and may contain mistakes; the official description above is the record.