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Vulnerability Details : 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.
Publish Date : 2019-04-26 Last Update Date : 2019-06-07
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- CVSS Scores & Vulnerability Types

CVSS Score
4.3
Confidentiality Impact None (There is no impact to the confidentiality of the system.)
Integrity Impact None (There is no impact to the integrity of the system)
Availability Impact Partial (There is reduced performance or interruptions in resource availability.)
Access Complexity Medium (The access conditions are somewhat specialized. Some preconditions must be satistified to exploit)
Authentication Not required (Authentication is not required to exploit the vulnerability.)
Gained Access None
Vulnerability Type(s) Denial Of Service
CWE ID 476

- Products Affected By CVE-2019-11555

# Product Type Vendor Product Version Update Edition Language
1 Application W1.fi Hostapd * * * * Version Details Vulnerabilities
2 Application W1.fi Wpa Supplicant * * * * Version Details Vulnerabilities

- Number Of Affected Versions By Product

Vendor Product Vulnerable Versions
W1.fi Hostapd 1
W1.fi Wpa Supplicant 1

- References For CVE-2019-11555

https://lists.debian.org/debian-lts-announce/2019/07/msg00030.html
MLIST [debian-lts-announce] 20190731 [SECURITY] [DLA 1867-1] wpa security update
https://www.debian.org/security/2019/dsa-4450
DEBIAN DSA-4450
https://seclists.org/bugtraq/2019/May/64
BUGTRAQ 20190527 [SECURITY] [DSA 4450-1] wpa security update
https://lists.fedoraproject.org/archives/list/[email protected]/message/IQ6P2GI5GSXRNLNIUNPARFZQVDEIGVZD/
FEDORA FEDORA-2019-28d3ca93d2
https://usn.ubuntu.com/3969-2/
UBUNTU USN-3969-2
https://lists.fedoraproject.org/archives/list/[email protected]/message/5T7G763UECWR7FQXOJVL67PW7C5A3SA4/
FEDORA FEDORA-2019-ff1b728d09
https://lists.fedoraproject.org/archives/list/[email protected]/message/DJKZHAT5KPUN26JL77EUH563GAH5XZ5C/
FEDORA FEDORA-2019-d6bc3771a4
https://security.FreeBSD.org/advisories/FreeBSD-SA-19:03.wpa.asc
FREEBSD FreeBSD-SA-19:03
http://www.openwall.com/lists/oss-security/2019/04/26/1
MLIST [oss-security] 20190426 Re: wpa_supplicant/hostapd: EAP-pwd message reassembly issue with unexpected fragment
https://seclists.org/bugtraq/2019/May/40
BUGTRAQ 20190515 FreeBSD Security Advisory FreeBSD-SA-19:03.wpa
https://security.gentoo.org/glsa/201908-25
GENTOO GLSA-201908-25
https://usn.ubuntu.com/3969-1/
UBUNTU USN-3969-1
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

- Metasploit Modules Related To CVE-2019-11555

There are not any metasploit modules related to this CVE entry (Please visit www.metasploit.com for more information)


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