Mandriva Linux Security Advisory 2012-168 - hostapd 0.7.3, and possibly other versions before 1.0, uses 0644 permissions for /etc/hostapd/hostapd.conf, which might allow local users to obtain sensitive information such as credentials. Heap-based buffer overflow in the eap_server_tls_process_fragment function in eap_server_tls_common.c in the EAP authentication server in hostapd 0.6 through 1.0 allows remote attackers to cause a denial of service via a small TLS Message Length value in an EAP-TLS message with the More Fragments flag set. The updated packages have been patched to correct these issues.
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