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CVSS: 6.8EPSS: 6%CPEs: 3EXPL: 0

Stack-based buffer overflow in the cbtls_verify function in FreeRADIUS 2.1.10 through 2.1.12, when using TLS-based EAP methods, allows remote attackers to cause a denial of service (server crash) and possibly execute arbitrary code via a long "not after" timestamp in a client certificate. Desbordamiento de búfer basado en pila en la función cbtls_verify en FreeRADIUS v2.1.10 hasta la v2.1.12, cuando se usan los métodos TLS-based EAP, permite a atacantes remotos provocar una denegación de servicio (caída del servidor) y posiblemente ejecutar código a través de un sellado de tiempo "not after" largo, en un certificado de un cliente. • http://archives.neohapsis.com/archives/bugtraq/2012-09/0043.html http://freeradius.org/security.html http://lists.apple.com/archives/security-announce/2013/Oct/msg00006.html http://lists.fedoraproject.org/pipermail/package-announce/2012-October/090171.html http://lists.opensuse.org/opensuse-security-announce/2012-09/msg00023.html http://osvdb.org/85325 http://rhn.redhat.com/errata/RHSA-2012-1326.html http://rhn.redhat.com/errata/RHSA-2012-1327.html http://secunia.com/advisories/50484&# • CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer CWE-121: Stack-based Buffer Overflow •

CVSS: 5.8EPSS: 0%CPEs: 1EXPL: 0

The ocsp_check function in rlm_eap_tls.c in FreeRADIUS 2.1.11, when OCSP is enabled, does not properly parse replies from OCSP responders, which allows remote attackers to bypass authentication by using the EAP-TLS protocol with a revoked X.509 client certificate. La función ocsp_check de rlm_eap_tls.c de FreeRADIUS 2.1.11, si OCSP está habilitado, no analiza correctamente la sintaxis ("parse") de las respuestas de los agentes transmisores OCSP, lo que permite a atacantes remotos evitar la autenticación usando el protocolo EAP-TLS con un certificado cliente X.509 revocado. • http://secunia.com/advisories/45425 http://securityreason.com/securityalert/8325 http://securitytracker.com/id?1025833 http://www.openwall.com/lists/oss-security/2011/07/15/6 http://www.openwall.com/lists/oss-security/2011/07/18/2 http://www.openwall.com/lists/oss-security/2011/07/20/9 http://www.securityfocus.com/archive/1/518974/100/0/threaded http://www.securityfocus.com/bid/48880 https://bugzilla.redhat.com/show_bug.cgi?id=724815 https://exchange.xforce.ib • CWE-287: Improper Authentication •

CVSS: 4.3EPSS: 1%CPEs: 9EXPL: 0

The wait_for_child_to_die function in main/event.c in FreeRADIUS 2.1.x before 2.1.10, in certain circumstances involving long-term database outages, does not properly handle long queue times for requests, which allows remote attackers to cause a denial of service (daemon crash) by sending many requests. La función wait_for_child_to_die en main/event.c en FreeRADIUS v2.1.x anterior a v2.1.10, en determinadas ocaciones genera cortes en la base de datos al no controlar correctamente los tiempos largos de la cola de peticiones, permitiendo de esta forma a atacantes remotos provocar una denegación de servicio ( caída del servicio) mediante el envío de muchas peticiones. • http://freeradius.org/press/index.html#2.1.10 http://github.com/alandekok/freeradius-server/commit/ff94dd35673bba1476594299d31ce8293b8bd223 http://secunia.com/advisories/41621 http://www.openwall.com/lists/oss-security/2010/10/01/3 http://www.openwall.com/lists/oss-security/2010/10/01/8 https://bugs.freeradius.org/bugzilla/show_bug.cgi?id=35 https://bugzilla.redhat.com/show_bug.cgi?id=639397 • CWE-399: Resource Management Errors •

CVSS: 4.3EPSS: 2%CPEs: 1EXPL: 0

The fr_dhcp_decode function in lib/dhcp.c in FreeRADIUS 2.1.9, in certain non-default builds, does not properly handle the DHCP Relay Agent Information option, which allows remote attackers to cause a denial of service (infinite loop and daemon outage) via a packet that has more than one sub-option. NOTE: some of these details are obtained from third party information. La función fr_dhcp_decode en lib/dhcp.c en FreeRADIUS v2.1.9, en determinadas compilaciones (no por defecto), no maneja adecuadamente la opción DHCP Relay Agent Information, lo cual permite a atacantes remotos provocar una denegación de servicio (bucle infinito y corte del servicio) a través de un paquete que tiene más de una sub-opción. NOTA: algunos de estos detalles han sido obtenidos de información de terceros. • http://freeradius.org/press/index.html#2.1.10 http://github.com/alandekok/freeradius-server/commit/4dc7800b866f889a1247685bbaa6dd4238a56279 http://secunia.com/advisories/41621 http://www.openwall.com/lists/oss-security/2010/10/01/3 http://www.openwall.com/lists/oss-security/2010/10/01/8 https://bugs.freeradius.org/bugzilla/show_bug.cgi?id=77 https://bugzilla.redhat.com/show_bug.cgi?id=639390 • CWE-399: Resource Management Errors •

CVSS: 5.0EPSS: 95%CPEs: 21EXPL: 1

The rad_decode function in FreeRADIUS before 1.1.8 allows remote attackers to cause a denial of service (radiusd crash) via zero-length Tunnel-Password attributes, as demonstrated by a certain module in VulnDisco Pack Professional 7.6 through 8.11. NOTE: this is a regression error related to CVE-2003-0967. La función rad_decode FreeRADIUS anterior a v1.1.8, permite a atacantes remotos provocar una denegación de servicio (caída de radiusd) a través de los atributos zero-length Tunnel-Password. NOTA: esto es una regresión al error relacionado con el CVE-2003-0967. • https://www.exploit-db.com/exploits/9642 http://github.com/alandekok/freeradius-server/commit/860cad9e02ba344edb0038419e415fe05a9a01f4 http://intevydis.com/vd-list.shtml http://lists.apple.com/archives/security-announce/2009/Nov/msg00000.html http://lists.opensuse.org/opensuse-security-announce/2009-10/msg00001.html http://lists.opensuse.org/opensuse-security-announce/2009-11/msg00004.html http://secunia.com/advisories/36509 http://support.apple.com/kb/HT3937 http://www.openwall.com/lists/oss-secu •