---
title: "CVE-2011-4599\n    | Ubuntu"
description: Ubuntu is an open source software operating system that runs from the
  desktop, to the cloud, to all your internet connected things.
url: https://ubuntu.com/security/CVE-2011-4599?format=md
keywords: index, follow
---

# CVE-2011-4599

Publication date 15 December 2011

Last updated 24 July 2024

---

Ubuntu priority

**Medium**

[Why this priority?](https://ubuntu.com/security/cves/about#priority )

Toggle side navigation

## Description

Stack-based buffer overflow in the \_canonicalize function in common/uloc.c
in International Components for Unicode (ICU) before 49.1 allows remote
attackers to execute arbitrary code via a crafted locale ID that is not
properly handled during variant canonicalization.

[Read the notes from the security team](https://ubuntu.com/security/CVE-2011-4599?format=md#notes)

## Status

Show unmaintained releases

| Package | Ubuntu Release | Status |
| --- | --- | --- |
| icu | 11.10 oneiric | Fixed 4.4.2-2ubuntu0.11.10.1 |
| 11.04 natty | Fixed 4.4.2-2ubuntu0.11.04.1 |
| 10.10 maverick | Fixed 4.2.1-3ubuntu0.10.10.1 |
| 10.04 LTS lucid | Fixed 4.2.1-3ubuntu0.10.04.1 |
| 8.04 LTS hardy | Ignored end of life |

---

* [How can I get the fixes?](https://ubuntu.com/security/cves/about#security)
* [What do statuses mean?](https://ubuntu.com/security/cves/about#statuses)
* [Patch details](https://ubuntu.com/security/CVE-2011-4599?format=md#patch-details)

## Notes

---

### [jdstrand](https://launchpad.net/~jdstrand)

based on the patch, looks like a heap buffer overflow

### Patch details

For informational purposes only. We recommend not to cherry-pick updates. [How can I get the fixes?](https://ubuntu.com/security/cves/about#security)

| Package | Patch details |
| --- | --- |
| icu | * Other:   <http://bugs.icu-project.org/trac/ticket/8984> * Vendor:   <https://rhn.redhat.com/errata/RHSA-2011-1815.html> |

## References

* [MITRE](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2011-4599)
* [NVD](https://nvd.nist.gov/vuln/detail/CVE-2011-4599)
* [Launchpad](https://launchpad.net/bugs/cve/CVE-2011-4599)
* [Debian](https://security-tracker.debian.org/tracker/CVE-2011-4599)

### Related Ubuntu Security Notices (USN)

+ [USN-1348-1](https://usn.ubuntu.com/USN-1348-1)
+ ICU vulnerability
+ 26 January 2012

### Other references

* <http://bugs.icu-project.org/trac/ticket/8984>
* <https://www.cve.org/CVERecord?id=CVE-2011-4599>