Debian: DSA-4450-1: wpa security update

    Date24 May 2019
    CategoryDebian
    5591
    Posted ByLinuxSecurity Advisories
    A vulnerability was found in the WPA protocol implementation found in wpa_supplication (station) and hostapd (access point). The EAP-pwd implementation in hostapd (EAP server) and wpa_supplicant (EAP
    
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    Debian Security Advisory DSA-4450-1                   This email address is being protected from spambots. You need JavaScript enabled to view it.
    https://www.debian.org/security/                        Yves-Alexis Perez
    May 24, 2019                          https://www.debian.org/security/faq
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    Package        : wpa
    CVE ID         : CVE-2019-11555
    Debian Bug     : 927463
    
    A vulnerability was found in the WPA protocol implementation found in
    wpa_supplication (station) and hostapd (access point).
    
    The EAP-pwd implementation in hostapd (EAP server) and wpa_supplicant (EAP
    peer) doesn't properly validate fragmentation reassembly state when receiving
    an unexpected fragment. This could lead to a process crash due to a NULL
    pointer derefrence.
    
    An attacker in radio range of a station or access point with EAP-pwd support
    could cause a crash of the relevant process (wpa_supplicant or hostapd),
    ensuring a denial of service.
    
    For the stable distribution (stretch), this problem has been fixed in
    version 2:2.4-1+deb9u4.
    
    We recommend that you upgrade your wpa packages.
    
    For the detailed security status of wpa please refer to
    its security tracker page at:
    https://security-tracker.debian.org/tracker/wpa
    
    Further information about Debian Security Advisories, how to apply
    these updates to your system and frequently asked questions can be
    found at: https://www.debian.org/security/
    
    Mailing list: This email address is being protected from spambots. You need JavaScript enabled to view it.
    
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