MEDIUM5.9
The eap_pwd_process function in eap_server/eap_server_pwd.c in hostapd 2.x before 2.6 does not validate that the reassembly buffer is large enough for the final fragment when used with (1) an internal EAP server or (2) a RADIUS server and EAP-pwd is enabled in a runtime configuration, which allows remote attackers to cause a denial of service (process termination) via a large final fragment in an EAP-pwd message.
CVSS 2.0MEDIUM 4.3
CVSS:2.0/AV:N/AC:M/Au:N/C:N/I:N/A:PCVSS 3.xMEDIUM 5.9
CVSS:3.x/CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:HReferences
- http://w1.fi/security/2015-7/eap-pwd-missing-last-fragment-length-validation.txt
- http://www.openwall.com/lists/oss-security/2015/11/10/10
- http://www.ubuntu.com/usn/USN-2808-1
- https://www.debian.org/security/2015/dsa-3397
- http://w1.fi/security/2015-7/eap-pwd-missing-last-fragment-length-validation.txt
- http://www.openwall.com/lists/oss-security/2015/11/10/10
- http://www.ubuntu.com/usn/USN-2808-1
- https://www.debian.org/security/2015/dsa-3397