---
title: "CVE-2015-1852\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-2015-1852?format=md
keywords: index, follow
---

# CVE-2015-1852

Publication date 17 April 2015

Last updated 24 July 2024

---

Ubuntu priority

**Medium**

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

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## Description

The s3\_token middleware in OpenStack keystonemiddleware before 1.6.0 and
python-keystoneclient before 1.4.0 disables certification verification when
the "insecure" option is set in a paste configuration (paste.ini) file
regardless of the value, which allows remote attackers to conduct
man-in-the-middle attacks via a crafted certificate, a different
vulnerability than CVE-2014-7144.

[Read the notes from the security team](https://ubuntu.com/security/CVE-2015-1852?format=md#notes)

## Status

Show unmaintained releases

| Package | Ubuntu Release | Status |
| --- | --- | --- |
| python-keystoneclient | 15.04 vivid | Fixed 1:1.2.0-0ubuntu1.1 |
| 14.10 utopic | Ignored end of life |
| 14.04 LTS trusty | Fixed 1:0.7.1-ubuntu1.2 |
| 12.04 LTS precise | Not affected |
| 10.04 LTS lucid | Not in release |
| python-keystonemiddleware | 15.04 vivid | Fixed 1.5.0-0ubuntu1.1 |
| 14.10 utopic | Ignored end of life |
| 14.04 LTS trusty | Not in release |
| 12.04 LTS precise | Not in release |
| 10.04 LTS lucid | 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-2015-1852?format=md#patch-details)

## Notes

---

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

will not be fixed before 14.10 goes EoL

### 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 |
| --- | --- |
| python-keystoneclient | * Upstream:   <https://review.openstack.org/173378> * Upstream:   <https://review.openstack.org/173377> * Upstream:   <https://review.openstack.org/173370> |
| python-keystonemiddleware | * Upstream:   <https://review.openstack.org/173376> * Upstream:   <https://review.openstack.org/173365> |

## References

* [MITRE](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-1852)
* [NVD](https://nvd.nist.gov/vuln/detail/CVE-2015-1852)
* [Launchpad](https://launchpad.net/bugs/cve/CVE-2015-1852)
* [Debian](https://security-tracker.debian.org/tracker/CVE-2015-1852)

### Related Ubuntu Security Notices (USN)

+ [USN-2705-1](https://usn.ubuntu.com/USN-2705-1)
+ Keystone vulnerabilities
+ 6 August 2015

### Other references

* <http://lists.openstack.org/pipermail/openstack-announce/2015-April/000350.html>
* <https://www.cve.org/CVERecord?id=CVE-2015-1852>