int(4754)

Boletines de Vulnerabilidades

Múltiples vulnerabilidades en ISC DHCP dhclient

Clasificación de la vulnerabilidad
Propiedad Valor
Nivel de Confianza Oficial
Impacto Obtener acceso
Dificultad Experto
Requerimientos del atacante Acceso remoto sin cuenta a un servicio estandar

Información sobre el sistema
Propiedad Valor
Fabricante afectado GNU/Linux
Software afectado ISC DHCP dhclient 4.1 < 4.1.0p1
ISC DHCP dhclient 4.0 < 4.0.1p1
ISC DHCP dhclient 3.1 < 3.1.2p1
ISC DHCP dhclient 3.0
ISC DHCP dhclient 2.0
Insight Control para Linux (IC-LX)

Descripción
Se han descubierto múltiples vulnerabilidades en ISC DHCP dhclient. Las vulnerabilidades son descritas a continuación:

- CVE-2009-0692: Se ha descubierto una vulnerabilidad de desbordamiento de pila. La vulnerabilidad reside en un error en la función "script_write_params" en "client/dhclient.c". Un atacante remoto podría ejecutar código arbitrario mediante una máscara de subred especialmente diseñada.

- CVE-2009-1892: Un atacante remoto podría causar una denegación de servicio mediante peticiones DHCP si la configuración del servidor mezcla definiciones de host usando "dhcp-client-identifier" y "hardware ethernet".

Solución


Actualización de software

Debian (DSA-1833-1)

Debian Linux 4.0
Source
http://security.debian.org/pool/updates/main/d/dhcp3/dhcp3_3.0.4-13+etch2.diff.gz
http://security.debian.org/pool/updates/main/d/dhcp3/dhcp3_3.0.4.orig.tar.gz
http://security.debian.org/pool/updates/main/d/dhcp3/dhcp3_3.0.4-13+etch2.dsc
alpha (DEC Alpha)
http://security.debian.org/pool/updates/main/d/dhcp3/dhcp3-dev_3.0.4-13+etch2_alpha.deb
http://security.debian.org/pool/updates/main/d/dhcp3/dhcp3-relay_3.0.4-13+etch2_alpha.deb
http://security.debian.org/pool/updates/main/d/dhcp3/dhcp3-client-udeb_3.0.4-13+etch2_alpha.udeb
http://security.debian.org/pool/updates/main/d/dhcp3/dhcp3-client_3.0.4-13+etch2_alpha.deb
http://security.debian.org/pool/updates/main/d/dhcp3/dhcp3-common_3.0.4-13+etch2_alpha.deb
http://security.debian.org/pool/updates/main/d/dhcp3/dhcp3-server_3.0.4-13+etch2_alpha.deb
amd64 (AMD x86_64 (AMD64))
http://security.debian.org/pool/updates/main/d/dhcp3/dhcp3-client-udeb_3.0.4-13+etch2_amd64.udeb
http://security.debian.org/pool/updates/main/d/dhcp3/dhcp3-common_3.0.4-13+etch2_amd64.deb
http://security.debian.org/pool/updates/main/d/dhcp3/dhcp3-client_3.0.4-13+etch2_amd64.deb
http://security.debian.org/pool/updates/main/d/dhcp3/dhcp3-dev_3.0.4-13+etch2_amd64.deb
http://security.debian.org/pool/updates/main/d/dhcp3/dhcp3-server_3.0.4-13+etch2_amd64.deb
http://security.debian.org/pool/updates/main/d/dhcp3/dhcp3-relay_3.0.4-13+etch2_amd64.deb
arm (ARM)
http://security.debian.org/pool/updates/main/d/dhcp3/dhcp3-relay_3.0.4-13+etch2_arm.deb
http://security.debian.org/pool/updates/main/d/dhcp3/dhcp3-client-udeb_3.0.4-13+etch2_arm.udeb
http://security.debian.org/pool/updates/main/d/dhcp3/dhcp3-common_3.0.4-13+etch2_arm.deb
http://security.debian.org/pool/updates/main/d/dhcp3/dhcp3-client_3.0.4-13+etch2_arm.deb
http://security.debian.org/pool/updates/main/d/dhcp3/dhcp3-dev_3.0.4-13+etch2_arm.deb
http://security.debian.org/pool/updates/main/d/dhcp3/dhcp3-server_3.0.4-13+etch2_arm.deb
hppa (HP PA RISC)
http://security.debian.org/pool/updates/main/d/dhcp3/dhcp3-relay_3.0.4-13+etch2_hppa.deb
http://security.debian.org/pool/updates/main/d/dhcp3/dhcp3-client-udeb_3.0.4-13+etch2_hppa.udeb
http://security.debian.org/pool/updates/main/d/dhcp3/dhcp3-client_3.0.4-13+etch2_hppa.deb
http://security.debian.org/pool/updates/main/d/dhcp3/dhcp3-dev_3.0.4-13+etch2_hppa.deb
http://security.debian.org/pool/updates/main/d/dhcp3/dhcp3-server_3.0.4-13+etch2_hppa.deb
http://security.debian.org/pool/updates/main/d/dhcp3/dhcp3-common_3.0.4-13+etch2_hppa.deb
i386 (Intel ia32)
http://security.debian.org/pool/updates/main/d/dhcp3/dhcp3-common_3.0.4-13+etch2_i386.deb
http://security.debian.org/pool/updates/main/d/dhcp3/dhcp3-server_3.0.4-13+etch2_i386.deb
http://security.debian.org/pool/updates/main/d/dhcp3/dhcp3-client_3.0.4-13+etch2_i386.deb
http://security.debian.org/pool/updates/main/d/dhcp3/dhcp3-relay_3.0.4-13+etch2_i386.deb
http://security.debian.org/pool/updates/main/d/dhcp3/dhcp3-client-udeb_3.0.4-13+etch2_i386.udeb
http://security.debian.org/pool/updates/main/d/dhcp3/dhcp3-dev_3.0.4-13+etch2_i386.deb
ia64 (Intel ia64)
http://security.debian.org/pool/updates/main/d/dhcp3/dhcp3-server_3.0.4-13+etch2_ia64.deb
http://security.debian.org/pool/updates/main/d/dhcp3/dhcp3-common_3.0.4-13+etch2_ia64.deb
http://security.debian.org/pool/updates/main/d/dhcp3/dhcp3-client_3.0.4-13+etch2_ia64.deb
http://security.debian.org/pool/updates/main/d/dhcp3/dhcp3-dev_3.0.4-13+etch2_ia64.deb
http://security.debian.org/pool/updates/main/d/dhcp3/dhcp3-client-udeb_3.0.4-13+etch2_ia64.udeb
http://security.debian.org/pool/updates/main/d/dhcp3/dhcp3-relay_3.0.4-13+etch2_ia64.deb
mips (MIPS (Big Endian))
http://security.debian.org/pool/updates/main/d/dhcp3/dhcp3-client-udeb_3.0.4-13+etch2_mips.udeb
http://security.debian.org/pool/updates/main/d/dhcp3/dhcp3-common_3.0.4-13+etch2_mips.deb
http://security.debian.org/pool/updates/main/d/dhcp3/dhcp3-client_3.0.4-13+etch2_mips.deb
http://security.debian.org/pool/updates/main/d/dhcp3/dhcp3-dev_3.0.4-13+etch2_mips.deb
http://security.debian.org/pool/updates/main/d/dhcp3/dhcp3-server_3.0.4-13+etch2_mips.deb
http://security.debian.org/pool/updates/main/d/dhcp3/dhcp3-relay_3.0.4-13+etch2_mips.deb
mipsel (MIPS (Little Endian))
http://security.debian.org/pool/updates/main/d/dhcp3/dhcp3-common_3.0.4-13+etch2_mipsel.deb
http://security.debian.org/pool/updates/main/d/dhcp3/dhcp3-client_3.0.4-13+etch2_mipsel.deb
http://security.debian.org/pool/updates/main/d/dhcp3/dhcp3-relay_3.0.4-13+etch2_mipsel.deb
http://security.debian.org/pool/updates/main/d/dhcp3/dhcp3-client-udeb_3.0.4-13+etch2_mipsel.udeb
http://security.debian.org/pool/updates/main/d/dhcp3/dhcp3-dev_3.0.4-13+etch2_mipsel.deb
http://security.debian.org/pool/updates/main/d/dhcp3/dhcp3-server_3.0.4-13+etch2_mipsel.deb
powerpc (PowerPC)
http://security.debian.org/pool/updates/main/d/dhcp3/dhcp3-relay_3.0.4-13+etch2_powerpc.deb
http://security.debian.org/pool/updates/main/d/dhcp3/dhcp3-common_3.0.4-13+etch2_powerpc.deb
http://security.debian.org/pool/updates/main/d/dhcp3/dhcp3-client-udeb_3.0.4-13+etch2_powerpc.udeb
http://security.debian.org/pool/updates/main/d/dhcp3/dhcp3-dev_3.0.4-13+etch2_powerpc.deb
http://security.debian.org/pool/updates/main/d/dhcp3/dhcp3-client_3.0.4-13+etch2_powerpc.deb
http://security.debian.org/pool/updates/main/d/dhcp3/dhcp3-server_3.0.4-13+etch2_powerpc.deb
sparc (Sun SPARC/UltraSPARC)
http://security.debian.org/pool/updates/main/d/dhcp3/dhcp3-client_3.0.4-13+etch2_sparc.deb
http://security.debian.org/pool/updates/main/d/dhcp3/dhcp3-dev_3.0.4-13+etch2_sparc.deb
http://security.debian.org/pool/updates/main/d/dhcp3/dhcp3-relay_3.0.4-13+etch2_sparc.deb
http://security.debian.org/pool/updates/main/d/dhcp3/dhcp3-server_3.0.4-13+etch2_sparc.deb
http://security.debian.org/pool/updates/main/d/dhcp3/dhcp3-common_3.0.4-13+etch2_sparc.deb
http://security.debian.org/pool/updates/main/d/dhcp3/dhcp3-client-udeb_3.0.4-13+etch2_sparc.udeb

Debian (DSA-1833-2)

Debian Linux 5.0
Source
http://security.debian.org/pool/updates/main/d/dhcp3/dhcp3_3.1.1.orig.tar.gz
http://security.debian.org/pool/updates/main/d/dhcp3/dhcp3_3.1.1-6+lenny3.dsc
http://security.debian.org/pool/updates/main/d/dhcp3/dhcp3_3.1.1-6+lenny3.diff.gz
Arquitectura independiente:
http://security.debian.org/pool/updates/main/d/dhcp3/dhcp-client_3.1.1-6+lenny3_all.deb
alpha (DEC Alpha)
http://security.debian.org/pool/updates/main/d/dhcp3/dhcp3-dev_3.1.1-6+lenny3_alpha.deb
http://security.debian.org/pool/updates/main/d/dhcp3/dhcp3-server-ldap_3.1.1-6+lenny3_alpha.deb
http://security.debian.org/pool/updates/main/d/dhcp3/dhcp3-client_3.1.1-6+lenny3_alpha.deb
http://security.debian.org/pool/updates/main/d/dhcp3/dhcp3-server_3.1.1-6+lenny3_alpha.deb
http://security.debian.org/pool/updates/main/d/dhcp3/dhcp3-client-udeb_3.1.1-6+lenny3_alpha.udeb
http://security.debian.org/pool/updates/main/d/dhcp3/dhcp3-relay_3.1.1-6+lenny3_alpha.deb
http://security.debian.org/pool/updates/main/d/dhcp3/dhcp3-common_3.1.1-6+lenny3_alpha.deb
amd64 (AMD x86_64 (AMD64))
http://security.debian.org/pool/updates/main/d/dhcp3/dhcp3-common_3.1.1-6+lenny3_amd64.deb
http://security.debian.org/pool/updates/main/d/dhcp3/dhcp3-relay_3.1.1-6+lenny3_amd64.deb
http://security.debian.org/pool/updates/main/d/dhcp3/dhcp3-client-udeb_3.1.1-6+lenny3_amd64.udeb
http://security.debian.org/pool/updates/main/d/dhcp3/dhcp3-server_3.1.1-6+lenny3_amd64.deb
http://security.debian.org/pool/updates/main/d/dhcp3/dhcp3-client_3.1.1-6+lenny3_amd64.deb
http://security.debian.org/pool/updates/main/d/dhcp3/dhcp3-server-ldap_3.1.1-6+lenny3_amd64.deb
http://security.debian.org/pool/updates/main/d/dhcp3/dhcp3-dev_3.1.1-6+lenny3_amd64.deb
arm (ARM)
http://security.debian.org/pool/updates/main/d/dhcp3/dhcp3-client_3.1.1-6+lenny3_arm.deb
http://security.debian.org/pool/updates/main/d/dhcp3/dhcp3-server-ldap_3.1.1-6+lenny3_arm.deb
http://security.debian.org/pool/updates/main/d/dhcp3/dhcp3-relay_3.1.1-6+lenny3_arm.deb
http://security.debian.org/pool/updates/main/d/dhcp3/dhcp3-server_3.1.1-6+lenny3_arm.deb
http://security.debian.org/pool/updates/main/d/dhcp3/dhcp3-dev_3.1.1-6+lenny3_arm.deb
http://security.debian.org/pool/updates/main/d/dhcp3/dhcp3-common_3.1.1-6+lenny3_arm.deb
http://security.debian.org/pool/updates/main/d/dhcp3/dhcp3-client-udeb_3.1.1-6+lenny3_arm.udeb
armel (ARM EABI)
http://security.debian.org/pool/updates/main/d/dhcp3/dhcp3-client_3.1.1-6+lenny3_armel.deb
http://security.debian.org/pool/updates/main/d/dhcp3/dhcp3-server_3.1.1-6+lenny3_armel.deb
http://security.debian.org/pool/updates/main/d/dhcp3/dhcp3-dev_3.1.1-6+lenny3_armel.deb
http://security.debian.org/pool/updates/main/d/dhcp3/dhcp3-relay_3.1.1-6+lenny3_armel.deb
http://security.debian.org/pool/updates/main/d/dhcp3/dhcp3-client-udeb_3.1.1-6+lenny3_armel.udeb
http://security.debian.org/pool/updates/main/d/dhcp3/dhcp3-server-ldap_3.1.1-6+lenny3_armel.deb
http://security.debian.org/pool/updates/main/d/dhcp3/dhcp3-common_3.1.1-6+lenny3_armel.deb
hppa (HP PA RISC)
http://security.debian.org/pool/updates/main/d/dhcp3/dhcp3-dev_3.1.1-6+lenny3_hppa.deb
http://security.debian.org/pool/updates/main/d/dhcp3/dhcp3-server-ldap_3.1.1-6+lenny3_hppa.deb
http://security.debian.org/pool/updates/main/d/dhcp3/dhcp3-client_3.1.1-6+lenny3_hppa.deb
http://security.debian.org/pool/updates/main/d/dhcp3/dhcp3-common_3.1.1-6+lenny3_hppa.deb
http://security.debian.org/pool/updates/main/d/dhcp3/dhcp3-server_3.1.1-6+lenny3_hppa.deb
http://security.debian.org/pool/updates/main/d/dhcp3/dhcp3-client-udeb_3.1.1-6+lenny3_hppa.udeb
http://security.debian.org/pool/updates/main/d/dhcp3/dhcp3-relay_3.1.1-6+lenny3_hppa.deb
i386 (Intel ia32)
http://security.debian.org/pool/updates/main/d/dhcp3/dhcp3-server-ldap_3.1.1-6+lenny3_i386.deb
http://security.debian.org/pool/updates/main/d/dhcp3/dhcp3-common_3.1.1-6+lenny3_i386.deb
http://security.debian.org/pool/updates/main/d/dhcp3/dhcp3-client_3.1.1-6+lenny3_i386.deb
http://security.debian.org/pool/updates/main/d/dhcp3/dhcp3-relay_3.1.1-6+lenny3_i386.deb
http://security.debian.org/pool/updates/main/d/dhcp3/dhcp3-client-udeb_3.1.1-6+lenny3_i386.udeb
http://security.debian.org/pool/updates/main/d/dhcp3/dhcp3-server_3.1.1-6+lenny3_i386.deb
http://security.debian.org/pool/updates/main/d/dhcp3/dhcp3-dev_3.1.1-6+lenny3_i386.deb
ia64 (Intel ia64)
http://security.debian.org/pool/updates/main/d/dhcp3/dhcp3-relay_3.1.1-6+lenny3_ia64.deb
http://security.debian.org/pool/updates/main/d/dhcp3/dhcp3-client-udeb_3.1.1-6+lenny3_ia64.udeb
http://security.debian.org/pool/updates/main/d/dhcp3/dhcp3-dev_3.1.1-6+lenny3_ia64.deb
http://security.debian.org/pool/updates/main/d/dhcp3/dhcp3-server-ldap_3.1.1-6+lenny3_ia64.deb
http://security.debian.org/pool/updates/main/d/dhcp3/dhcp3-client_3.1.1-6+lenny3_ia64.deb
http://security.debian.org/pool/updates/main/d/dhcp3/dhcp3-server_3.1.1-6+lenny3_ia64.deb
http://security.debian.org/pool/updates/main/d/dhcp3/dhcp3-common_3.1.1-6+lenny3_ia64.deb
mips (MIPS (Big Endian))
http://security.debian.org/pool/updates/main/d/dhcp3/dhcp3-dev_3.1.1-6+lenny3_mips.deb
http://security.debian.org/pool/updates/main/d/dhcp3/dhcp3-relay_3.1.1-6+lenny3_mips.deb
http://security.debian.org/pool/updates/main/d/dhcp3/dhcp3-client-udeb_3.1.1-6+lenny3_mips.udeb
http://security.debian.org/pool/updates/main/d/dhcp3/dhcp3-server_3.1.1-6+lenny3_mips.deb
http://security.debian.org/pool/updates/main/d/dhcp3/dhcp3-common_3.1.1-6+lenny3_mips.deb
http://security.debian.org/pool/updates/main/d/dhcp3/dhcp3-client_3.1.1-6+lenny3_mips.deb
http://security.debian.org/pool/updates/main/d/dhcp3/dhcp3-server-ldap_3.1.1-6+lenny3_mips.deb
mipsel (MIPS (Little Endian))
http://security.debian.org/pool/updates/main/d/dhcp3/dhcp3-client_3.1.1-6+lenny3_mipsel.deb
http://security.debian.org/pool/updates/main/d/dhcp3/dhcp3-common_3.1.1-6+lenny3_mipsel.deb
http://security.debian.org/pool/updates/main/d/dhcp3/dhcp3-server_3.1.1-6+lenny3_mipsel.deb
http://security.debian.org/pool/updates/main/d/dhcp3/dhcp3-dev_3.1.1-6+lenny3_mipsel.deb
http://security.debian.org/pool/updates/main/d/dhcp3/dhcp3-client-udeb_3.1.1-6+lenny3_mipsel.udeb
http://security.debian.org/pool/updates/main/d/dhcp3/dhcp3-relay_3.1.1-6+lenny3_mipsel.deb
http://security.debian.org/pool/updates/main/d/dhcp3/dhcp3-server-ldap_3.1.1-6+lenny3_mipsel.deb
powerpc (PowerPC)
http://security.debian.org/pool/updates/main/d/dhcp3/dhcp3-relay_3.1.1-6+lenny3_powerpc.deb
http://security.debian.org/pool/updates/main/d/dhcp3/dhcp3-dev_3.1.1-6+lenny3_powerpc.deb
http://security.debian.org/pool/updates/main/d/dhcp3/dhcp3-client_3.1.1-6+lenny3_powerpc.deb
http://security.debian.org/pool/updates/main/d/dhcp3/dhcp3-server_3.1.1-6+lenny3_powerpc.deb
http://security.debian.org/pool/updates/main/d/dhcp3/dhcp3-client-udeb_3.1.1-6+lenny3_powerpc.udeb
http://security.debian.org/pool/updates/main/d/dhcp3/dhcp3-server-ldap_3.1.1-6+lenny3_powerpc.deb
http://security.debian.org/pool/updates/main/d/dhcp3/dhcp3-common_3.1.1-6+lenny3_powerpc.deb
s390 (IBM S/390)
http://security.debian.org/pool/updates/main/d/dhcp3/dhcp3-dev_3.1.1-6+lenny3_s390.deb
http://security.debian.org/pool/updates/main/d/dhcp3/dhcp3-server_3.1.1-6+lenny3_s390.deb
http://security.debian.org/pool/updates/main/d/dhcp3/dhcp3-client-udeb_3.1.1-6+lenny3_s390.udeb
http://security.debian.org/pool/updates/main/d/dhcp3/dhcp3-relay_3.1.1-6+lenny3_s390.deb
http://security.debian.org/pool/updates/main/d/dhcp3/dhcp3-client_3.1.1-6+lenny3_s390.deb
http://security.debian.org/pool/updates/main/d/dhcp3/dhcp3-common_3.1.1-6+lenny3_s390.deb
http://security.debian.org/pool/updates/main/d/dhcp3/dhcp3-server-ldap_3.1.1-6+lenny3_s390.deb
sparc (Sun SPARC/UltraSPARC)
http://security.debian.org/pool/updates/main/d/dhcp3/dhcp3-common_3.1.1-6+lenny3_sparc.deb
http://security.debian.org/pool/updates/main/d/dhcp3/dhcp3-server_3.1.1-6+lenny3_sparc.deb
http://security.debian.org/pool/updates/main/d/dhcp3/dhcp3-server-ldap_3.1.1-6+lenny3_sparc.deb
http://security.debian.org/pool/updates/main/d/dhcp3/dhcp3-client_3.1.1-6+lenny3_sparc.deb
http://security.debian.org/pool/updates/main/d/dhcp3/dhcp3-relay_3.1.1-6+lenny3_sparc.deb
http://security.debian.org/pool/updates/main/d/dhcp3/dhcp3-dev_3.1.1-6+lenny3_sparc.deb
http://security.debian.org/pool/updates/main/d/dhcp3/dhcp3-client-udeb_3.1.1-6+lenny3_sparc.udeb

Red Hat (RHSA-2009:1136-1)
Red Hat Desktop (v. 4)
Red Hat Enterprise Linux AS (v. 4)
Red Hat Enterprise Linux AS (v. 4.7.z)
Red Hat Enterprise Linux AS (v. 4.8.z)
Red Hat Enterprise Linux ES (v. 4)
Red Hat Enterprise Linux ES (v. 4.7.z)
Red Hat Enterprise Linux ES (v. 4.8.z)
Red Hat Enterprise Linux WS (v. 4)
https://rhn.redhat.com/


Red Hat (RHSA-2009:1154-1)
Red Hat Desktop (v. 3)
Red Hat Enterprise Linux AS (v. 3)
Red Hat Enterprise Linux ES (v. 3)
Red Hat Enterprise Linux WS (v. 3)
https://rhn.redhat.com/

Suse Linux
Las actualizaciones pueden descargarse mediante YAST o del servidor FTP oficial de Suse Linux.

Hewlett-Packard (HPSBMA02554)
HP ha presentado HP Insight Control para Linux v6.1 para resolver esta vulnerabilidad. El kit de actualización se puede descargar de la siguiente página:
http://www.hp.com/go/ic-lx

Identificadores estándar
Propiedad Valor
CVE CVE-2009-0692
CVE-2009-1892
BID 35668

Recursos adicionales
Debian Security Advisory (DSA-1833-1)
http://lists.debian.org/debian-security-announce/2009/msg00147.html

Red Hat Security Advisory (RHSA-2009:1136-1)
https://rhn.redhat.com/errata/RHSA-2009-1136.html

Red Hat Security Advisory (RHSA-2009:1154-1)
https://rhn.redhat.com/errata/RHSA-2009-1154.html

SUSE Security Advisory (SUSE-SA:2009:037)
http://www.novell.com/linux/security/advisories/2009_37_dhclient.html

Debian Security Advisory (DSA-1833-2)
http://lists.debian.org/debian-security-announce/2009/msg00190.html

HP SECURITY BULLETIN (HPSBMA02554)
http://www13.itrc.hp.com/service/cki/docDisplay.do?docId=emr_na-c02286083

Histórico de versiones
Versión Comentario Fecha
1.0 Aviso emitido 2009-07-15
1.1 Aviso emitido por Suse (SUSE-SA:2009:037) 2009-07-23
1.2 Aviso actualizado por Debian (DSA-1833-2) 2009-08-26
1.3 Aviso emitido por HP (HPSBMA02554) 2010-07-20

Miembros de

CERT
FIRST
TF-CSIRT
EGC Group
UE
Red Nacional de SOC
Foro Nacional de Ciberseguridad
CSIRT.es
Ministerio de Defensa
CNI
CCN
CCN-CERT