hostapd: EAP-pwd message reassembly issue with unexpected fragment (CVE-2019-11555)
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.
References:
https://www.openwall.com/lists/oss-security/2019/04/26/1
https://w1.fi/security/2019-5/
https://nvd.nist.gov/vuln/detail/CVE-2019-11555
(from redmine: issue id 10408, created on 2019-05-07, closed on 2019-06-20)
- Relations:
- child #10409 (closed)
- child #10410 (closed)
- child #10411 (closed)
- child #10412 (closed)
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