---
title: "CVE-2015-4146\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-2015-4146?format=md
keywords: index, follow
---
# CVE-2015-4146
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
The EAP-pwd peer implementation in hostapd and wpa\_supplicant 1.0 through
2.4 does not clear the L (Length) and M (More) flags before determining if
a response should be fragmented, which allows remote attackers to cause a
denial of service (crash) via a crafted message.
## Status
Show unmaintained releases
| Package | Ubuntu Release | Status |
| --- | --- | --- |
| hostapd | 15.04 vivid | Not in release |
| 14.10 utopic | Not in release |
| 14.04 LTS trusty | Not in release |
| 12.04 LTS precise | Not affected |
| wpa | 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 | 15.04 vivid | Not in release |
| 14.10 utopic | Not in release |
| 14.04 LTS trusty | Not in release |
| 12.04 LTS precise | Not affected |
---
* [How can I get the fixes?](https://ubuntu.com/security/cves/about#security)
* [What do statuses mean?](https://ubuntu.com/security/cves/about#statuses)
## References
* [MITRE](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-4146)
* [NVD](https://nvd.nist.gov/vuln/detail/CVE-2015-4146)
* [Launchpad](https://launchpad.net/bugs/cve/CVE-2015-4146)
* [Debian](https://security-tracker.debian.org/tracker/CVE-2015-4146)
### 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
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