CVE-2015-4146

Summary

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.

Affected Software

Weaknesses

• n/a

ADP Enrichment

CVE Program Container

Additional References

• http://www.openwall.com/lists/oss-security/2015/05/31/6
• http://w1.fi/security/2015-4/0005-EAP-pwd-peer-Fix-asymmetric-fragmentation-behavior.patch
• http://www.debian.org/security/2015/dsa-3397
• https://security.gentoo.org/glsa/201606-17
• http://www.ubuntu.com/usn/USN-2650-1
• http://w1.fi/security/2015-4/eap-pwd-missing-payload-length-validation.txt
• http://lists.opensuse.org/opensuse-updates/2015-06/msg00019.html
• http://www.openwall.com/lists/oss-security/2015/05/09/6

References

• http://www.openwall.com/lists/oss-security/2015/05/31/6
• http://w1.fi/security/2015-4/0005-EAP-pwd-peer-Fix-asymmetric-fragmentation-behavior.patch
• http://www.debian.org/security/2015/dsa-3397
• https://security.gentoo.org/glsa/201606-17
• http://www.ubuntu.com/usn/USN-2650-1
• http://w1.fi/security/2015-4/eap-pwd-missing-payload-length-validation.txt
• http://lists.opensuse.org/opensuse-updates/2015-06/msg00019.html
• http://www.openwall.com/lists/oss-security/2015/05/09/6

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