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    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.

    Published:Apr 18, 2019
    Last Modified:Nov 21, 2024
    EPS:Apr 26, 2019
    EPSS Score:0.09076
    CVSS Score:5.9

    Affected Products

    Vendor
    W1.fi
    Product
    Hostapd
    Vendor
    W1.fi
    Product
    Wpa Supplicant

    Exploits

    No exploit reference

    Common Weakness Enumeration

    CWE-476 NULL Pointer Dereference

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

    Related CVEs

    CVE-2026-58374 (CVSS 6.5) — In hostapd before 2.12, a missing bounds check in AP-mode Wi-Fi 7 (IEEE 802.11be) Multi-Link Operation (MLO) a…
    CVE-2025-24912 (CVSS 3.7) — hostapd fails to process crafted RADIUS packets properly. When hostapd authenticates wi-fi devices with RADIUS…
    CVE-2022-37660 (CVSS 6.5) — In hostapd 2.10 and earlier, the PKEX code remains active even after a successful PKEX association. An attacke…
    CVE-2022-23304 (CVSS 9.8) — The implementations of EAP-pwd in hostapd before 2.10 and wpa_supplicant before 2.10 are vulnerable to side-ch…
    CVE-2022-23303 (CVSS 9.8) — The implementations of SAE in hostapd before 2.10 and wpa_supplicant before 2.10 are vulnerable to side channe…
    CVE-2021-30004 (CVSS 5.3) — In wpa_supplicant and hostapd 2.9, forging attacks may occur because AlgorithmIdentifier parameters are mishan…
    CVE-2020-12695 (CVSS 7.5) — The Open Connectivity Foundation UPnP specification before 2020-04-17 does not forbid the acceptance of a subs…
    CVE-2019-10064 (CVSS 7.5) — hostapd before 2.6, in EAP mode, makes calls to the rand() and random() standard library functions without any…
    CVE-2019-5062 (CVSS 6.5) — An exploitable denial-of-service vulnerability exists in the 802.11w security state handling for hostapd 2.6 c…
    CVE-2019-5061 (CVSS 6.5) — An exploitable denial-of-service vulnerability exists in the hostapd 2.6, where an attacker could trigger AP t…

    References

    http://www.openwall.com/lists/oss-security/2019/04/26/1
    https://lists.debian.org/debian-lts-announce/2019/07/msg00030.html
    https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/5T7G763UECWR7FQXOJVL67PW7C5A3SA4/
    https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/DJKZHAT5KPUN26JL77EUH563GAH5XZ5C/
    https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/IQ6P2GI5GSXRNLNIUNPARFZQVDEIGVZD/
    https://seclists.org/bugtraq/2019/May/40
    https://seclists.org/bugtraq/2019/May/64
    https://security.FreeBSD.org/advisories/FreeBSD-SA-19:03.wpa.asc
    https://security.gentoo.org/glsa/201908-25
    https://usn.ubuntu.com/3969-1/
    https://usn.ubuntu.com/3969-2/
    https://w1.fi/security/2019-5/
    https://w1.fi/security/2019-5/eap-pwd-message-reassembly-issue-with-unexpected-fragment.txt
    https://www.debian.org/security/2019/dsa-4450
    https://www.openwall.com/lists/oss-security/2019/04/18/6
    http://www.openwall.com/lists/oss-security/2019/04/26/1
    https://lists.debian.org/debian-lts-announce/2019/07/msg00030.html
    https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/5T7G763UECWR7FQXOJVL67PW7C5A3SA4/
    https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/DJKZHAT5KPUN26JL77EUH563GAH5XZ5C/
    https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/IQ6P2GI5GSXRNLNIUNPARFZQVDEIGVZD/
    https://seclists.org/bugtraq/2019/May/40
    https://seclists.org/bugtraq/2019/May/64
    https://security.FreeBSD.org/advisories/FreeBSD-SA-19:03.wpa.asc
    https://security.gentoo.org/glsa/201908-25
    https://usn.ubuntu.com/3969-1/
    https://usn.ubuntu.com/3969-2/
    https://w1.fi/security/2019-5/
    https://w1.fi/security/2019-5/eap-pwd-message-reassembly-issue-with-unexpected-fragment.txt
    https://www.debian.org/security/2019/dsa-4450
    https://www.openwall.com/lists/oss-security/2019/04/18/6

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High