---
title: "CVE-2014-8143\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-2014-8143?format=md
keywords: index, follow
---

# CVE-2014-8143

Publication date 16 January 2015

Last updated 24 July 2024

---

Ubuntu priority

**Medium**

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

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## Description

Samba 4.0.x before 4.0.24, 4.1.x before 4.1.16, and 4.2.x before 4.2rc4,
when an Active Directory Domain Controller (AD DC) is configured, allows
remote authenticated users to set the LDB userAccountControl
UF\_SERVER\_TRUST\_ACCOUNT bit, and consequently gain privileges, by
leveraging delegation of authority for user-account or computer-account
creation.

## Status

Show unmaintained releases

| Package | Ubuntu Release | Status |
| --- | --- | --- |
| samba | 17.04 zesty | Fixed 2:4.1.11+dfsg-1ubuntu4 |
| 16.10 yakkety | Fixed 2:4.1.11+dfsg-1ubuntu4 |
| 16.04 LTS xenial | Fixed 2:4.1.11+dfsg-1ubuntu4 |
| 15.10 wily | Fixed 2:4.1.11+dfsg-1ubuntu4 |
| 15.04 vivid | Fixed 2:4.1.11+dfsg-1ubuntu4 |
| 14.10 utopic | Fixed 2:4.1.11+dfsg-1ubuntu2.1 |
| 14.04 LTS trusty | Fixed 2:4.1.6+dfsg-1ubuntu2.14.04.4 |
| 12.04 LTS precise | Not affected |
| 10.04 LTS lucid | Not affected |
| samba4 | 17.04 zesty | Not in release |
| 16.10 yakkety | Not in release |
| 16.04 LTS xenial | Not in release |
| 15.10 wily | Not in release |
| 15.04 vivid | Not in release |
| 14.10 utopic | Not in release |
| 14.04 LTS trusty | Not in release |
| 12.04 LTS precise | Ignored end of life |
| 10.04 LTS lucid | 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-2014-8143?format=md#patch-details)

### 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 |
| --- | --- |
| samba | * Upstream:   <https://git.samba.org/?p=samba.git;a=commit;h=9e15786d093ac984262394510333cb3c3d512e1a> * Upstream:   <https://git.samba.org/?p=samba.git;a=commit;h=f2cb9b99235ebfdd0d53c3ebdaaac44f8b958311> * Upstream:   <https://git.samba.org/?p=samba.git;a=commit;h=3c93b5772ef002569810b01c39faac8b34168f05> * Upstream:   <https://git.samba.org/?p=samba.git;a=commit;h=5cc1c0ec403358d08e208a38feae11631510ab72> |

## References

* [MITRE](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2014-8143)
* [NVD](https://nvd.nist.gov/vuln/detail/CVE-2014-8143)
* [Launchpad](https://launchpad.net/bugs/cve/CVE-2014-8143)
* [Debian](https://security-tracker.debian.org/tracker/CVE-2014-8143)

### Related Ubuntu Security Notices (USN)

+ [USN-2481-1](https://usn.ubuntu.com/USN-2481-1)
+ Samba vulnerability
+ 22 January 2015

### Other references

* <https://www.samba.org/samba/security/CVE-2014-8143>
* <https://download.samba.org/pub/samba/patches/security/samba-4.1.15-CVE-2014-8143.patch>
* <https://download.samba.org/pub/samba/patches/security/samba-4.0.23-CVE-2014-8143.patch>
* <https://www.cve.org/CVERecord?id=CVE-2014-8143>