CVE-2015-4146 Denial of service in n/a
Remote attackers can crash hostapd or wpa_supplicant by sending crafted EAP-pwd messages due to improper flag handling.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2015-4146?
CVE-2015-4146 is a medium-severity denial of service vulnerability in Opensuse Opensuse, published on 15 Jun 2015. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official 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.
Which versions are affected by CVE-2015-4146?
It affects 3 products.
Products include Opensuse Opensuse, W1.fi Hostapd, W1.fi Wpa Supplicant.
How do I fix CVE-2015-4146?
Upgrade to a fixed version.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2015-4146 being exploited?
There is no known exploitation of CVE-2015-4146 in the wild and no public exploit code.
Other vulnerabilities in Opensuse Opensuse
Sources
Also known as DEBIAN-CVE-2015-4146, GHSA-f2m4-x3g9-fqq7, UBUNTU-CVE-2015-4146.