---
title: "CVE-2015-4142\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-2015-4142?format=md
keywords: index, follow
---

# CVE-2015-4142

Publication date 1 June 2015

Last updated 24 July 2024

---

Ubuntu priority

**Medium**

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

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## Description

Integer underflow in the WMM Action frame parser in hostapd 0.5.5 through
2.4 and wpa\_supplicant 0.7.0 through 2.4, when used for AP mode MLME/SME
functionality, allows remote attackers to cause a denial of service (crash)
via a crafted frame, which triggers an out-of-bounds read.

## Status

Show unmaintained releases

| Package | Ubuntu Release | Status |
| --- | --- | --- |
| hostapd | 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 |
| wpa | 17.04 zesty | Fixed 2.1-0ubuntu8 |
| 16.10 yakkety | Fixed 2.1-0ubuntu8 |
| 16.04 LTS xenial | Fixed 2.1-0ubuntu8 |
| 15.10 wily | Fixed 2.1-0ubuntu8 |
| 15.04 vivid | Fixed 2.1-0ubuntu7.2 |
| 14.10 utopic | Fixed 2.1-0ubuntu4.2 |
| 14.04 LTS trusty | Fixed 2.1-0ubuntu1.3 |
| 12.04 LTS precise | Not in release |
| wpasupplicant | 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 | Fixed 0.7.3-6ubuntu2.4 |

---

* [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-2015-4142?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 |
| --- | --- |
| hostapd | * Other:   <http://w1.fi/security/2015-3/0001-AP-WMM-Fix-integer-underflow-in-WMM-Action-frame-par.patch> |
| wpa | * Other:   <http://w1.fi/security/2015-3/0001-AP-WMM-Fix-integer-underflow-in-WMM-Action-frame-par.patch> |
| wpasupplicant | * Other:   <http://w1.fi/security/2015-3/0001-AP-WMM-Fix-integer-underflow-in-WMM-Action-frame-par.patch> |

## References

* [MITRE](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-4142)
* [NVD](https://nvd.nist.gov/vuln/detail/CVE-2015-4142)
* [Launchpad](https://launchpad.net/bugs/cve/CVE-2015-4142)
* [Debian](https://security-tracker.debian.org/tracker/CVE-2015-4142)

### Related Ubuntu Security Notices (USN)

+ [USN-2650-1](https://usn.ubuntu.com/USN-2650-1)
+ wpa\_supplicant and hostapd vulnerabilities
+ 16 June 2015

### Other references

* <http://w1.fi/security/2015-3/>
* <http://w1.fi/security/2015-3/integer-underflow-in-ap-mode-wmm-action-frame.txt>
* <http://www.openwall.com/lists/oss-security/2015/05/09/5>
* <https://www.cve.org/CVERecord?id=CVE-2015-4142>