CVE-2015-4146

Publication date 1 June 2015

Last updated 24 July 2024

Ubuntu priority

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?
What do statuses mean?

References

MITRE
NVD
Launchpad
Debian

Related Ubuntu Security Notices (USN)

USN-2650-1
wpa_supplicant and hostapd vulnerabilities
16 June 2015

Other references

http://w1.fi/security/2015-4/
http://w1.fi/security/2015-4/eap-pwd-missing-payload-length-validation.txt
http://w1.fi/security/2015-4/0005-EAP-pwd-peer-Fix-asymmetric-fragmentation-behavior.patch
http://www.openwall.com/lists/oss-security/2015/05/07/5
https://www.cve.org/CVERecord?id=CVE-2015-4146