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CVE
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CVE-2019-11555Date: (C)2019-06-19   (M)2023-12-22


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.

CVSS Score and Metrics +CVSS Score and Metrics -

CVSS V3 Severity:CVSS V2 Severity:
CVSS Score : 5.9CVSS Score : 4.3
Exploit Score: 2.2Exploit Score: 8.6
Impact Score: 3.6Impact Score: 2.9
 
CVSS V3 Metrics:CVSS V2 Metrics:
Attack Vector: NETWORKAccess Vector: NETWORK
Attack Complexity: HIGHAccess Complexity: MEDIUM
Privileges Required: NONEAuthentication: NONE
User Interaction: NONEConfidentiality: NONE
Scope: UNCHANGEDIntegrity: NONE
Confidentiality: NONEAvailability: PARTIAL
Integrity: NONE 
Availability: HIGH 
  
Reference:
https://seclists.org/bugtraq/2019/May/40
https://seclists.org/bugtraq/2019/May/64
DSA-4450
FEDORA-2019-28d3ca93d2
FEDORA-2019-d6bc3771a4
FEDORA-2019-ff1b728d09
FreeBSD-SA-19:03
GLSA-201908-25
USN-3969-1
USN-3969-2
https://lists.debian.org/debian-lts-announce/2019/07/msg00030.html
http://www.openwall.com/lists/oss-security/2019/04/26/1
https://w1.fi/security/2019-5/
https://w1.fi/security/2019-5/eap-pwd-message-reassembly-issue-with-unexpected-fragment.txt
https://www.openwall.com/lists/oss-security/2019/04/18/6

CPE    2
cpe:/a:w1.fi:hostapd
cpe:/a:w1.fi:wpa_supplicant
CWE    1
CWE-476
OVAL    19
oval:org.secpod.oval:def:55018
oval:org.secpod.oval:def:55306
oval:org.secpod.oval:def:116920
oval:org.secpod.oval:def:116602
...

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