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    Debian: DSA-2557-1: hostapd security update

    Date 08 Oct 2012
    128
    Posted By LinuxSecurity Advisories
    Timo Warns discovered that the internal authentication server of hostapd, a user space IEEE 802.11 AP and IEEE 802.1X/WPA/WPA2/EAP Authenticator, is vulnerable to a buffer overflow when processing fragmented EAP-TLS messages. As a result, an internal overflow checking routine terminates
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    Debian Security Advisory DSA-2557-1                   This email address is being protected from spambots. You need JavaScript enabled to view it.
    https://www.debian.org/security/                                Nico Golde
    October 08, 2012                       https://www.debian.org/security/faq
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    Package        : hostapd
    Vulnerability  : buffer overflow
    Problem type   : remote
    Debian-specific: no
    CVE ID         : CVE-2012-4445
    
    Timo Warns discovered that the internal authentication server of hostapd,
    a user space IEEE 802.11 AP and IEEE 802.1X/WPA/WPA2/EAP Authenticator,
    is vulnerable to a buffer overflow when processing fragmented EAP-TLS
    messages.  As a result, an internal overflow checking routine terminates
    the process.  An attacker can abuse this flaw to conduct denial of service
    attacks via crafted EAP-TLS messages prior to any authentication.
    
    For the stable distribution (squeeze), this problem has been fixed in
    version 0.6.10-2+squeeze1.
    
    For the testing (wheezy) and unstable (sid) distributions, this problem
    will be fixed soon.
    
    
    We recommend that you upgrade your hostapd packages.
    
    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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