Vulnerability identifier: #VU11269
Vulnerability risk: Low
CVSSv3.1: 4.6 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:U/RL:O/RC:C]
CVE-ID:
CWE-ID:
CWE-476
Exploitation vector: Network
Exploit availability: No
Vulnerable software:
wpa_supplicant
Server applications /
Encryption software
Vendor: Jouni Malinen
Description
The vulnerability allows a remote unauthenticated attacker to cause DoS condition on the target system.
The weakness exists in the eap_pwd_perform_confirm_exchangefunction due to NULL pointer dereference. A remote attacker can submit an EAP-pwd Confirm message prior to the Identity exchange and cause the service to crash.
Mitigation
Update to version 2.6.
Vulnerable software versions
wpa_supplicant: 2.0.0 - 2.5
External links
http://w1.fi/security/2015-8/eap-pwd-unexpected-confirm.txt
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.