CVE-2012-4445

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    CVE-2012-4445

    Published: 10 Oct 2012Last Modified: 10 Apr 2026

    Summary:

    Details: Heap-based buffer overflow in the eap_server_tls_process_fragment function in eap_server_tls_common.c in the EAP authentication server in hostapd 0.6 through 1.0 allows remote attackers to cause a denial of service (crash or abort) via a small "TLS Message Length" value in an EAP-TLS message with the "More Fragments" flag set.

    References: http://secunia.com/advisories/50805, http://secunia.com/advisories/50888, http://www.debian.org/security/2012/dsa-2557, http://www.freebsd.org/security/advisories/FreeBSD-SA-12:07.hostapd.asc, http://www.mandriva.com/security/advisories?name=MDVSA-2012:168, http://www.pre-cert.de/advisories/PRE-SA-2012-07.txt, http://osvdb.org/86051, http://w1.fi/gitweb/gitweb.cgi?p=hostap.git%3Ba=commitdiff%3Bh=586c446e0ff42ae00315b014924ec669023bd8de, http://www.openwall.com/lists/oss-security/2012/10/08/3, http://www.securityfocus.com/bid/55826, http://www.securitytracker.com/id?1027808, https://exchange.xforce.ibmcloud.com/vulnerabilities/79104

    Affected packages

    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