Vulnerability 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.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| W1.Fi | Wpa Supplicant | 1.0 |
| W1.Fi | Hostapd | 1.0 |
| Opensuse | Opensuse | 13.1 |
References
- http://lists.opensuse.org/opensuse-updates/2015-06/msg00019.htmlThird Party Advisory
- http://w1.fi/security/2015-4/0005-EAP-pwd-peer-Fix-asymmetric-fragmentation-beha
- http://w1.fi/security/2015-4/eap-pwd-missing-payload-length-validation.txtVendor Advisory
- 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/201606-17Third Party Advisory
- http://lists.opensuse.org/opensuse-updates/2015-06/msg00019.htmlThird Party Advisory
- http://w1.fi/security/2015-4/0005-EAP-pwd-peer-Fix-asymmetric-fragmentation-beha
- http://w1.fi/security/2015-4/eap-pwd-missing-payload-length-validation.txtVendor Advisory
- 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
FAQ
What is CVE-2015-4146?
CVE-2015-4146 is a vulnerability with a CVSS score of 5.0 (MEDIUM). 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 remot...
How severe is CVE-2015-4146?
CVE-2015-4146 has been rated MEDIUM with a CVSS base score of 5.0/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2015-4146?
Check the references section above for vendor advisories and patch information. Affected products include: W1.Fi Wpa Supplicant, W1.Fi Hostapd, Opensuse Opensuse.