Fragmentation Reassembly State Validation Vulnerability in EAP-pwd Implementation

CVE-2019-11555 · MEDIUM Severity

AV:N/AC:M/AU:N/C:N/I:N/A:P

The EAP-pwd implementation in hostapd (EAP server) before 2.8 and wpa_supplicant (EAP peer) before 2.8 does not validate fragmentation reassembly state properly for a case where an unexpected fragment could be received. This could result in process termination due to a NULL pointer dereference (denial of service). This affects eap_server/eap_server_pwd.c and eap_peer/eap_pwd.c.

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