CVE-2015-4146

medium
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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.

References

http://lists.opensuse.org/opensuse-updates/2015-06/msg00019.html

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

http://www.debian.org/security/2015/dsa-3397

http://www.openwall.com/lists/oss-security/2015/05/09/6

http://www.openwall.com/lists/oss-security/2015/05/31/6

http://www.ubuntu.com/usn/USN-2650-1

https://security.gentoo.org/glsa/201606-17

Details

Source: MITRE

Published: 2015-06-15

Updated: 2018-10-30

Risk Information

CVSS v2

Base Score: 5

Vector: AV:N/AC:L/Au:N/C:N/I:N/A:P

Impact Score: 2.9

Exploitability Score: 10

Severity: MEDIUM

Vulnerable Software

Configuration 1

OR

cpe:2.3:a:w1.fi:wpa_supplicant:1.0:*:*:*:*:*:*:*

cpe:2.3:a:w1.fi:wpa_supplicant:1.1:*:*:*:*:*:*:*

cpe:2.3:a:w1.fi:wpa_supplicant:2.0:*:*:*:*:*:*:*

cpe:2.3:a:w1.fi:wpa_supplicant:2.1:*:*:*:*:*:*:*

cpe:2.3:a:w1.fi:wpa_supplicant:2.2:*:*:*:*:*:*:*

cpe:2.3:a:w1.fi:wpa_supplicant:2.3:*:*:*:*:*:*:*

cpe:2.3:a:w1.fi:wpa_supplicant:2.4:*:*:*:*:*:*:*

Configuration 2

OR

cpe:2.3:a:w1.fi:hostapd:1.0:*:*:*:*:*:*:*

cpe:2.3:a:w1.fi:hostapd:1.1:*:*:*:*:*:*:*

cpe:2.3:a:w1.fi:hostapd:2.0:*:*:*:*:*:*:*

cpe:2.3:a:w1.fi:hostapd:2.1:*:*:*:*:*:*:*

cpe:2.3:a:w1.fi:hostapd:2.2:*:*:*:*:*:*:*

cpe:2.3:a:w1.fi:hostapd:2.3:*:*:*:*:*:*:*

cpe:2.3:a:w1.fi:hostapd:2.4:*:*:*:*:*:*:*

Configuration 3

OR

cpe:2.3:o:opensuse:opensuse:13.1:*:*:*:*:*:*:*

cpe:2.3:o:opensuse:opensuse:13.2:*:*:*:*:*:*:*

Tenable Plugins

View all (4 total)

IDNameProductFamilySeverity
91862GLSA-201606-17 : hostapd and wpa_supplicant: Multiple vulnerabilitiesNessusGentoo Local Security Checks
medium
86833Debian DSA-3397-1 : wpa - security updateNessusDebian Local Security Checks
medium
84230Ubuntu 12.04 LTS / 14.04 LTS / 14.10 / 15.04 : wpa, wpasupplicant vulnerabilities (USN-2650-1)NessusUbuntu Local Security Checks
medium
83964FreeBSD : hostapd and wpa_supplicant -- multiple vulnerabilities (bbc0db92-084c-11e5-bb90-002590263bf5)NessusFreeBSD Local Security Checks
medium