PRIOn knowledge basePRION:CVE-2019-11555Null pointer dereference
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.
| CPE | Name | Operator | Version |
|---|---|---|---|
| hostapd | lt | 2.8 | |
| wpa_supplicant | lt | 2.8 |
References
www.openwall.com/lists/oss-security/2019/04/26/1
lists.debian.org/debian-lts-announce/2019/07/msg00030.html
lists.fedoraproject.org/archives/list/[email protected]/message/5T7G763UECWR7FQXOJVL67PW7C5A3SA4/
lists.fedoraproject.org/archives/list/[email protected]/message/DJKZHAT5KPUN26JL77EUH563GAH5XZ5C/
lists.fedoraproject.org/archives/list/[email protected]/message/IQ6P2GI5GSXRNLNIUNPARFZQVDEIGVZD/
seclists.org/bugtraq/2019/May/40
seclists.org/bugtraq/2019/May/64
security.FreeBSD.org/advisories/FreeBSD-SA-19:03.wpa.asc
security.gentoo.org/glsa/201908-25
usn.ubuntu.com/3969-1/
usn.ubuntu.com/3969-2/
w1.fi/security/2019-5/
w1.fi/security/2019-5/eap-pwd-message-reassembly-issue-with-unexpected-fragment.txt
www.debian.org/security/2019/dsa-4450
www.openwall.com/lists/oss-security/2019/04/18/6
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