Vulnerability Description
The eap_pwd_process function in eap_peer/eap_pwd.c in wpa_supplicant 2.x before 2.6 does not validate that the reassembly buffer is large enough for the final fragment when EAP-pwd is enabled in a network configuration profile, which allows remote attackers to cause a denial of service (process termination) via a large final fragment in an EAP-pwd message.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| W1.Fi | Wpa Supplicant | >= 2.0, < 2.6 |
| Debian | Debian Linux | 8.0 |
Related Weaknesses (CWE)
References
- http://w1.fi/security/2015-7/eap-pwd-missing-last-fragment-length-validation.txtMitigationVendor Advisory
- http://www.openwall.com/lists/oss-security/2015/11/10/10Mailing ListPatchThird Party Advisory
- http://www.ubuntu.com/usn/USN-2808-1Broken Link
- https://www.debian.org/security/2015/dsa-3397Third Party Advisory
- http://w1.fi/security/2015-7/eap-pwd-missing-last-fragment-length-validation.txtMitigationVendor Advisory
- http://www.openwall.com/lists/oss-security/2015/11/10/10Mailing ListPatchThird Party Advisory
- http://www.ubuntu.com/usn/USN-2808-1Broken Link
- https://www.debian.org/security/2015/dsa-3397Third Party Advisory
FAQ
What is CVE-2015-5315?
CVE-2015-5315 is a vulnerability with a CVSS score of 5.9 (MEDIUM). The eap_pwd_process function in eap_peer/eap_pwd.c in wpa_supplicant 2.x before 2.6 does not validate that the reassembly buffer is large enough for the final fragment when EAP-pwd is enabled in a net...
How severe is CVE-2015-5315?
CVE-2015-5315 has been rated MEDIUM with a CVSS base score of 5.9/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2015-5315?
Check the references section above for vendor advisories and patch information. Affected products include: W1.Fi Wpa Supplicant, Debian Debian Linux.