---
title: "CVE-2012-5580\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-2012-5580?format=md
keywords: index, follow
---

# CVE-2012-5580

Publication date 27 October 2014

Last updated 24 July 2024

---

Ubuntu priority

**Low**

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

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## Description

Format string vulnerability in the print\_proxies function in bin/proxy.c in
libproxy 0.3.1 might allow context-dependent attackers to cause a denial of
service (crash) and possibly execute arbitrary code via format string
specifiers in a proxy name, as demonstrated using the http\_proxy
environment variable or a PAC file.

[Read the notes from the security team](https://ubuntu.com/security/CVE-2012-5580?format=md#notes)

## Status

Show unmaintained releases

| Package | Ubuntu Release | Status |
| --- | --- | --- |
| libproxy | 13.04 raring | Not affected |
| 12.10 quantal | Not affected |
| 12.04 LTS precise | Not affected |
| 11.10 oneiric | Ignored end of life |
| 10.04 LTS lucid | Ignored end of life |
| 8.04 LTS hardy | Not in release |

---

* [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-2012-5580?format=md#patch-details)

## Notes

---

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

only used in "proxy" tool in libproxy-tools package, and
caught by FORTIFY\_SOURCE. Reproducer from SUSE bug:
http\_proxy=http://foo%n.suse.de/ proxy http://foo.bar.de

### 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 |
| --- | --- |
| libproxy | * Upstream:   <https://code.google.com/p/libproxy/source/detail?r=475> |

## References

* [MITRE](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2012-5580)
* [NVD](https://nvd.nist.gov/vuln/detail/CVE-2012-5580)
* [Launchpad](https://launchpad.net/bugs/cve/CVE-2012-5580)
* [Debian](https://security-tracker.debian.org/tracker/CVE-2012-5580)

### Other references

* <https://www.cve.org/CVERecord?id=CVE-2012-5580>