---
title: "CVE-2013-4496\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-2013-4496?format=md
keywords: index, follow
---

# CVE-2013-4496

Publication date 14 March 2014

Last updated 24 July 2024

---

Ubuntu priority

**Medium**

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

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## Description

Samba 3.x before 3.6.23, 4.0.x before 4.0.16, and 4.1.x before 4.1.6 does
not enforce the password-guessing protection mechanism for all interfaces,
which makes it easier for remote attackers to obtain access via brute-force
ChangePasswordUser2 (1) SAMR or (2) RAP attempts.

## Status

Show unmaintained releases

| Package | Ubuntu Release | Status |
| --- | --- | --- |
| samba | 17.04 zesty | Fixed 2:4.1.3+dfsg-2ubuntu4 |
| 16.10 yakkety | Fixed 2:4.1.3+dfsg-2ubuntu4 |
| 16.04 LTS xenial | Fixed 2:4.1.3+dfsg-2ubuntu4 |
| 15.10 wily | Fixed 2:4.1.3+dfsg-2ubuntu4 |
| 15.04 vivid | Fixed 2:4.1.3+dfsg-2ubuntu4 |
| 14.10 utopic | Fixed 2:4.1.3+dfsg-2ubuntu4 |
| 14.04 LTS trusty | Fixed 2:4.1.3+dfsg-2ubuntu4 |
| 13.10 saucy | Fixed 2:3.6.18-1ubuntu3.2 |
| 12.10 quantal | Fixed 2:3.6.6-3ubuntu5.4 |
| 12.04 LTS precise | Fixed 2:3.6.3-2ubuntu2.10 |
| 10.04 LTS lucid | Fixed 2:3.4.7~dfsg-1ubuntu3.14 |
| 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 |
| 13.10 saucy | Ignored end of life |
| 12.10 quantal | Ignored end of life |
| 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-2013-4496?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:   <http://www.samba.org/samba/ftp/patches/security/samba-4.1.5-CVE-2013-4496-CVE-2013-6442.patch> * Upstream:   <http://www.samba.org/samba/ftp/patches/security/samba-3.6.22-CVE-2013-4496.patch> * Upstream:   <http://git.samba.org/?p=samba.git;a=commit;h=87ad66195e9035f1e5fbca7c4ccc4458f10aa875> * Upstream:   <http://git.samba.org/?p=samba.git;a=commit;h=88c9f6820bafc74a93487e5d7d4b24768bd157a6> * Upstream:   <http://git.samba.org/?p=samba.git;a=commit;h=906bf7fd50da8acd7720589fe0fe8b7ebde81a5a> |
| samba4 | * Upstream:   <http://www.samba.org/samba/ftp/patches/security/samba-4.1.5-CVE-2013-4496-CVE-2013-6442.patch> * Upstream:   <http://www.samba.org/samba/ftp/patches/security/samba-4.0.15-CVE-2013-4496-CVE-2013-6442.patch> |

## References

* [MITRE](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2013-4496)
* [NVD](https://nvd.nist.gov/vuln/detail/CVE-2013-4496)
* [Launchpad](https://launchpad.net/bugs/cve/CVE-2013-4496)
* [Debian](https://security-tracker.debian.org/tracker/CVE-2013-4496)

### Related Ubuntu Security Notices (USN)

+ [USN-2156-1](https://usn.ubuntu.com/USN-2156-1)
+ Samba vulnerability
+ 26 March 2014

### Other references

* <http://www.samba.org/samba/security/CVE-2013-4496>
* <https://www.cve.org/CVERecord?id=CVE-2013-4496>