CVE-2015-4146

Severity

50%

Complexity

99%

Confidentiality

48%

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.

CVSS 2.0 Base Score 5. CVSS Attack Vector: network. CVSS Attack Complexity: low. CVSS Vector: (AV:N/AC:L/Au:N/C:N/I:N/A:P).

Overview

First reported 9 years ago

2015-06-15 15:59:00

Last updated 6 years ago

2018-10-30 16:27:00

Affected Software

w1.fi WPA Supplicant 1.0

1.0

w1.fi WPA Supplicant 1.1

1.1

w1.fi WPA Supplicant 2.0

2.0

w1.fi WPA Supplicant 2.1

2.1

w1.fi WPA Supplicant 2.2

2.2

w1.fi WPA Supplicant 2.3

2.3

w1.fi WPA Supplicant 2.4

2.4

w1.fi Hostapd 1.1

1.1

w1.fi Hostapd 2.0

2.0

w1.fi Hostapd 2.1

2.1

w1.fi Hostapd 2.2

2.2

w1.fi hostapd 2.3

2.3

w1.fi hostapd 2.4

2.4

OpenSUSE 13.1

13.1

OpenSUSE 13.2

13.2

References

openSUSE-SU-2015:1030

Third Party Advisory

http://w1.fi/security/2015-4/0005-EAP-pwd-peer-Fix-asymmetric-fragmentation-behavior.patch

http://w1.fi/security/2015-4/eap-pwd-missing-payload-length-validation.txt

Vendor Advisory

DSA-3397

[oss-security] 20150509 Re: CVE request: vulnerability in wpa_supplicant and hostapd

[oss-security] 20150531 Re: CVE request: vulnerability in wpa_supplicant and hostapd

USN-2650-1

GLSA-201606-17