---
title: "CVE-2012-4523\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-2012-4523?format=md
keywords: index, follow
---

# CVE-2012-4523

Publication date 20 November 2012

Last updated 24 July 2024

---

Ubuntu priority

**Medium**

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

Toggle side navigation

## Description

radsecproxy before 1.6.1 does not properly verify certificates when there
are configuration blocks with CA settings that are unrelated to the block
being used for verifying the certificate chain, which might allow remote
attackers to bypass intended access restrictions and spoof clients.

[Read the notes from the security team](https://ubuntu.com/security/CVE-2012-4523?format=md#notes)

## Status

Show unmaintained releases

| Package | Ubuntu Release | Status |
| --- | --- | --- |
| radsecproxy | 17.04 zesty | Not affected |
| 16.10 yakkety | Not affected |
| 16.04 LTS xenial | Not affected |
| 15.10 wily | Not affected |
| 15.04 vivid | Not affected |
| 14.10 utopic | Not affected |
| 14.04 LTS trusty | Not in release |
| 13.10 saucy | Not affected |
| 13.04 raring | Not affected |
| 12.10 quantal | Ignored end of life |
| 12.04 LTS precise | Ignored end of life |
| 11.10 oneiric | Ignored end of life |
| 11.04 natty | 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)

## Notes

---

### [seth-arnold](https://launchpad.net/~seth-arnold)

version and cve were updated after 1.6.1 release, grab those too

## References

* [MITRE](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2012-4523)
* [NVD](https://nvd.nist.gov/vuln/detail/CVE-2012-4523)
* [Launchpad](https://launchpad.net/bugs/cve/CVE-2012-4523)
* [Debian](https://security-tracker.debian.org/tracker/CVE-2012-4523)

### Other references

* <http://git.nordu.net/?p=radsecproxy.git;a=commitdiff;h=db965c9bf7cf4acc0830d7b689d69d40b9ecef8c>
* <http://www.openwall.com/lists/oss-security/2012/10/17>
* <https://www.cve.org/CVERecord?id=CVE-2012-4523>