Vulnerability Details CVE-2015-4146
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.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.013
EPSS Ranking 78.8%
CVSS Severity
CVSS v2 Score 5.0
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
- 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
Products affected by CVE-2015-4146
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cpe:2.3:a:w1.fi:hostapd:1.0
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cpe:2.3:a:w1.fi:hostapd:1.1
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cpe:2.3:a:w1.fi:hostapd:2.0
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cpe:2.3:a:w1.fi:hostapd:2.1
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cpe:2.3:a:w1.fi:hostapd:2.2
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cpe:2.3:a:w1.fi:hostapd:2.3
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cpe:2.3:a:w1.fi:hostapd:2.4
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cpe:2.3:a:w1.fi:wpa_supplicant:1.0
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cpe:2.3:a:w1.fi:wpa_supplicant:1.1
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cpe:2.3:a:w1.fi:wpa_supplicant:2.0
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cpe:2.3:a:w1.fi:wpa_supplicant:2.1
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cpe:2.3:a:w1.fi:wpa_supplicant:2.2
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cpe:2.3:a:w1.fi:wpa_supplicant:2.3
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cpe:2.3:a:w1.fi:wpa_supplicant:2.4
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cpe:2.3:o:opensuse:opensuse:13.1
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cpe:2.3:o:opensuse:opensuse:13.2