mirror of
https://github.com/vanhoefm/fragattacks.git
synced 2025-02-18 01:53:06 -05:00
586c446e0f
EAP-TLS/PEAP/TTLS/FAST server implementation did not validate TLS Message Length value properly and could end up trying to store more information into the message buffer than the allocated size if the first fragment is longer than the indicated size. This could result in hostapd process terminating in wpabuf length validation. Fix this by rejecting messages that have invalid TLS Message Length value. This would affect cases that use the internal EAP authentication server in hostapd either directly with IEEE 802.1X or when using hostapd as a RADIUS authentication server and when receiving an incorrectly constructed EAP-TLS message. Cases where hostapd uses an external authentication are not affected. Thanks to Timo Warns for finding and reporting this issue. Signed-hostap: Jouni Malinen <j@w1.fi> intended-for: hostap-1