int(3697)

Boletines de Vulnerabilidades


Denegación de servicio en wzdftpd

Clasificación de la vulnerabilidad

Propiedad Valor
Nivel de Confianza Oficial
Impacto Denegación de Servicio
Dificultad Principiante
Requerimientos del atacante Acceso remoto sin cuenta a un servicio estandar

Información sobre el sistema

Propiedad Valor
Fabricante afectado GNU/Linux
Software afectado wzdftpd 0.8.0
wzdftpd 0.8.2

Descripción

Se ha encontrado una vulnerabilidad de tipo desbordamiento de búfer en wzdftpd en las versiones 0.8.0, 0.8.2 y posiblemente en otras versiones anteriores. La vulnerabilidad reside en un error en la función do_login_loop del archivo libwzd-core/wzd_login.c.

Un atacante remoto podría causar una denegación de servicio mediante un comando USER grande.

Existe un exploit público disponible.

Solución



Actualización de software

Debian (DSA 1452-1)

Debian Linux 3.1
Source
http://security.debian.org/pool/updates/main/w/wzdftpd/wzdftpd_0.5.2.orig.tar.gz
http://security.debian.org/pool/updates/main/w/wzdftpd/wzdftpd_0.5.2-1.1sarge3.dsc
http://security.debian.org/pool/updates/main/w/wzdftpd/wzdftpd_0.5.2-1.1sarge3.diff.gz
alpha
http://security.debian.org/pool/updates/main/w/wzdftpd/wzdftpd-dev_0.5.2-1.1sarge3_alpha.deb
http://security.debian.org/pool/updates/main/w/wzdftpd/wzdftpd-mod-perl_0.5.2-1.1sarge3_alpha.deb
http://security.debian.org/pool/updates/main/w/wzdftpd/wzdftpd-back-mysql_0.5.2-1.1sarge3_alpha.deb
http://security.debian.org/pool/updates/main/w/wzdftpd/wzdftpd_0.5.2-1.1sarge3_alpha.deb
http://security.debian.org/pool/updates/main/w/wzdftpd/wzdftpd-mod-tcl_0.5.2-1.1sarge3_alpha.deb
amd64
http://security.debian.org/pool/updates/main/w/wzdftpd/wzdftpd-mod-perl_0.5.2-1.1sarge3_amd64.deb
http://security.debian.org/pool/updates/main/w/wzdftpd/wzdftpd-dev_0.5.2-1.1sarge3_amd64.deb
http://security.debian.org/pool/updates/main/w/wzdftpd/wzdftpd_0.5.2-1.1sarge3_amd64.deb
http://security.debian.org/pool/updates/main/w/wzdftpd/wzdftpd-mod-tcl_0.5.2-1.1sarge3_amd64.deb
http://security.debian.org/pool/updates/main/w/wzdftpd/wzdftpd-back-mysql_0.5.2-1.1sarge3_amd64.deb
arm
http://security.debian.org/pool/updates/main/w/wzdftpd/wzdftpd-back-mysql_0.5.2-1.1sarge3_arm.deb
http://security.debian.org/pool/updates/main/w/wzdftpd/wzdftpd-dev_0.5.2-1.1sarge3_arm.deb
http://security.debian.org/pool/updates/main/w/wzdftpd/wzdftpd-mod-tcl_0.5.2-1.1sarge3_arm.deb
http://security.debian.org/pool/updates/main/w/wzdftpd/wzdftpd-mod-perl_0.5.2-1.1sarge3_arm.deb
http://security.debian.org/pool/updates/main/w/wzdftpd/wzdftpd_0.5.2-1.1sarge3_arm.deb
hppa
http://security.debian.org/pool/updates/main/w/wzdftpd/wzdftpd-back-mysql_0.5.2-1.1sarge3_hppa.deb
http://security.debian.org/pool/updates/main/w/wzdftpd/wzdftpd-dev_0.5.2-1.1sarge3_hppa.deb
http://security.debian.org/pool/updates/main/w/wzdftpd/wzdftpd_0.5.2-1.1sarge3_hppa.deb
http://security.debian.org/pool/updates/main/w/wzdftpd/wzdftpd-mod-perl_0.5.2-1.1sarge3_hppa.deb
http://security.debian.org/pool/updates/main/w/wzdftpd/wzdftpd-mod-tcl_0.5.2-1.1sarge3_hppa.deb
i386
http://security.debian.org/pool/updates/main/w/wzdftpd/wzdftpd_0.5.2-1.1sarge3_i386.deb
http://security.debian.org/pool/updates/main/w/wzdftpd/wzdftpd-dev_0.5.2-1.1sarge3_i386.deb
http://security.debian.org/pool/updates/main/w/wzdftpd/wzdftpd-back-mysql_0.5.2-1.1sarge3_i386.deb
http://security.debian.org/pool/updates/main/w/wzdftpd/wzdftpd-mod-tcl_0.5.2-1.1sarge3_i386.deb
http://security.debian.org/pool/updates/main/w/wzdftpd/wzdftpd-mod-perl_0.5.2-1.1sarge3_i386.deb
m68k
http://security.debian.org/pool/updates/main/w/wzdftpd/wzdftpd-dev_0.5.2-1.1sarge3_m68k.deb
http://security.debian.org/pool/updates/main/w/wzdftpd/wzdftpd-mod-tcl_0.5.2-1.1sarge3_m68k.deb
http://security.debian.org/pool/updates/main/w/wzdftpd/wzdftpd-back-mysql_0.5.2-1.1sarge3_m68k.deb
http://security.debian.org/pool/updates/main/w/wzdftpd/wzdftpd_0.5.2-1.1sarge3_m68k.deb
http://security.debian.org/pool/updates/main/w/wzdftpd/wzdftpd-mod-perl_0.5.2-1.1sarge3_m68k.deb
mips
http://security.debian.org/pool/updates/main/w/wzdftpd/wzdftpd-back-mysql_0.5.2-1.1sarge3_mips.deb
http://security.debian.org/pool/updates/main/w/wzdftpd/wzdftpd-mod-tcl_0.5.2-1.1sarge3_mips.deb
http://security.debian.org/pool/updates/main/w/wzdftpd/wzdftpd-mod-perl_0.5.2-1.1sarge3_mips.deb
http://security.debian.org/pool/updates/main/w/wzdftpd/wzdftpd_0.5.2-1.1sarge3_mips.deb
http://security.debian.org/pool/updates/main/w/wzdftpd/wzdftpd-dev_0.5.2-1.1sarge3_mips.deb
mipsel
http://security.debian.org/pool/updates/main/w/wzdftpd/wzdftpd-mod-tcl_0.5.2-1.1sarge3_mipsel.deb
http://security.debian.org/pool/updates/main/w/wzdftpd/wzdftpd-back-mysql_0.5.2-1.1sarge3_mipsel.deb
http://security.debian.org/pool/updates/main/w/wzdftpd/wzdftpd-mod-perl_0.5.2-1.1sarge3_mipsel.deb
http://security.debian.org/pool/updates/main/w/wzdftpd/wzdftpd-dev_0.5.2-1.1sarge3_mipsel.deb
http://security.debian.org/pool/updates/main/w/wzdftpd/wzdftpd_0.5.2-1.1sarge3_mipsel.deb
powerpc
http://security.debian.org/pool/updates/main/w/wzdftpd/wzdftpd_0.5.2-1.1sarge3_powerpc.deb
http://security.debian.org/pool/updates/main/w/wzdftpd/wzdftpd-mod-perl_0.5.2-1.1sarge3_powerpc.deb
http://security.debian.org/pool/updates/main/w/wzdftpd/wzdftpd-mod-tcl_0.5.2-1.1sarge3_powerpc.deb
http://security.debian.org/pool/updates/main/w/wzdftpd/wzdftpd-dev_0.5.2-1.1sarge3_powerpc.deb
http://security.debian.org/pool/updates/main/w/wzdftpd/wzdftpd-back-mysql_0.5.2-1.1sarge3_powerpc.deb
s390
http://security.debian.org/pool/updates/main/w/wzdftpd/wzdftpd-back-mysql_0.5.2-1.1sarge3_s390.deb
http://security.debian.org/pool/updates/main/w/wzdftpd/wzdftpd-dev_0.5.2-1.1sarge3_s390.deb
http://security.debian.org/pool/updates/main/w/wzdftpd/wzdftpd-mod-perl_0.5.2-1.1sarge3_s390.deb
http://security.debian.org/pool/updates/main/w/wzdftpd/wzdftpd-mod-tcl_0.5.2-1.1sarge3_s390.deb
http://security.debian.org/pool/updates/main/w/wzdftpd/wzdftpd_0.5.2-1.1sarge3_s390.deb
sparc
http://security.debian.org/pool/updates/main/w/wzdftpd/wzdftpd-dev_0.5.2-1.1sarge3_sparc.deb
http://security.debian.org/pool/updates/main/w/wzdftpd/wzdftpd_0.5.2-1.1sarge3_sparc.deb
http://security.debian.org/pool/updates/main/w/wzdftpd/wzdftpd-mod-perl_0.5.2-1.1sarge3_sparc.deb
http://security.debian.org/pool/updates/main/w/wzdftpd/wzdftpd-mod-tcl_0.5.2-1.1sarge3_sparc.deb
http://security.debian.org/pool/updates/main/w/wzdftpd/wzdftpd-back-mysql_0.5.2-1.1sarge3_sparc.deb

Debian Linux 4.0
Source
http://security.debian.org/pool/updates/main/w/wzdftpd/wzdftpd_0.8.1.orig.tar.gz
http://security.debian.org/pool/updates/main/w/wzdftpd/wzdftpd_0.8.1-2etch1.diff.gz
http://security.debian.org/pool/updates/main/w/wzdftpd/wzdftpd_0.8.1-2etch1.dsc
alpha
http://security.debian.org/pool/updates/main/w/wzdftpd/wzdftpd-back-mysql_0.8.1-2etch1_alpha.deb
http://security.debian.org/pool/updates/main/w/wzdftpd/wzdftpd-mod-tcl_0.8.1-2etch1_alpha.deb
http://security.debian.org/pool/updates/main/w/wzdftpd/wzdftpd-back-pgsql_0.8.1-2etch1_alpha.deb
http://security.debian.org/pool/updates/main/w/wzdftpd/wzdftpd-mod-avahi_0.8.1-2etch1_alpha.deb
http://security.debian.org/pool/updates/main/w/wzdftpd/wzdftpd-dev_0.8.1-2etch1_alpha.deb
http://security.debian.org/pool/updates/main/w/wzdftpd/wzdftpd_0.8.1-2etch1_alpha.deb
http://security.debian.org/pool/updates/main/w/wzdftpd/wzdftpd-mod-perl_0.8.1-2etch1_alpha.deb
amd64
http://security.debian.org/pool/updates/main/w/wzdftpd/wzdftpd-back-mysql_0.8.1-2etch1_amd64.deb
http://security.debian.org/pool/updates/main/w/wzdftpd/wzdftpd_0.8.1-2etch1_amd64.deb
http://security.debian.org/pool/updates/main/w/wzdftpd/wzdftpd-back-pgsql_0.8.1-2etch1_amd64.deb
http://security.debian.org/pool/updates/main/w/wzdftpd/wzdftpd-mod-perl_0.8.1-2etch1_amd64.deb
http://security.debian.org/pool/updates/main/w/wzdftpd/wzdftpd-dev_0.8.1-2etch1_amd64.deb
http://security.debian.org/pool/updates/main/w/wzdftpd/wzdftpd-mod-avahi_0.8.1-2etch1_amd64.deb
http://security.debian.org/pool/updates/main/w/wzdftpd/wzdftpd-mod-tcl_0.8.1-2etch1_amd64.deb
arm
http://security.debian.org/pool/updates/main/w/wzdftpd/wzdftpd-dev_0.8.1-2etch1_arm.deb
http://security.debian.org/pool/updates/main/w/wzdftpd/wzdftpd-mod-tcl_0.8.1-2etch1_arm.deb
http://security.debian.org/pool/updates/main/w/wzdftpd/wzdftpd-back-mysql_0.8.1-2etch1_arm.deb
http://security.debian.org/pool/updates/main/w/wzdftpd/wzdftpd_0.8.1-2etch1_arm.deb
http://security.debian.org/pool/updates/main/w/wzdftpd/wzdftpd-mod-avahi_0.8.1-2etch1_arm.deb
http://security.debian.org/pool/updates/main/w/wzdftpd/wzdftpd-mod-perl_0.8.1-2etch1_arm.deb
http://security.debian.org/pool/updates/main/w/wzdftpd/wzdftpd-back-pgsql_0.8.1-2etch1_arm.deb
hppa
http://security.debian.org/pool/updates/main/w/wzdftpd/wzdftpd-mod-tcl_0.8.1-2etch1_hppa.deb
http://security.debian.org/pool/updates/main/w/wzdftpd/wzdftpd-mod-avahi_0.8.1-2etch1_hppa.deb
http://security.debian.org/pool/updates/main/w/wzdftpd/wzdftpd-mod-perl_0.8.1-2etch1_hppa.deb
http://security.debian.org/pool/updates/main/w/wzdftpd/wzdftpd_0.8.1-2etch1_hppa.deb
http://security.debian.org/pool/updates/main/w/wzdftpd/wzdftpd-back-mysql_0.8.1-2etch1_hppa.deb
http://security.debian.org/pool/updates/main/w/wzdftpd/wzdftpd-back-pgsql_0.8.1-2etch1_hppa.deb
http://security.debian.org/pool/updates/main/w/wzdftpd/wzdftpd-dev_0.8.1-2etch1_hppa.deb
i386
http://security.debian.org/pool/updates/main/w/wzdftpd/wzdftpd-dev_0.8.1-2etch1_i386.deb
http://security.debian.org/pool/updates/main/w/wzdftpd/wzdftpd_0.8.1-2etch1_i386.deb
http://security.debian.org/pool/updates/main/w/wzdftpd/wzdftpd-mod-perl_0.8.1-2etch1_i386.deb
http://security.debian.org/pool/updates/main/w/wzdftpd/wzdftpd-back-pgsql_0.8.1-2etch1_i386.deb
http://security.debian.org/pool/updates/main/w/wzdftpd/wzdftpd-mod-tcl_0.8.1-2etch1_i386.deb
http://security.debian.org/pool/updates/main/w/wzdftpd/wzdftpd-mod-avahi_0.8.1-2etch1_i386.deb
http://security.debian.org/pool/updates/main/w/wzdftpd/wzdftpd-back-mysql_0.8.1-2etch1_i386.deb
ia64
http://security.debian.org/pool/updates/main/w/wzdftpd/wzdftpd-mod-tcl_0.8.1-2etch1_ia64.deb
http://security.debian.org/pool/updates/main/w/wzdftpd/wzdftpd-mod-perl_0.8.1-2etch1_ia64.deb
http://security.debian.org/pool/updates/main/w/wzdftpd/wzdftpd-back-mysql_0.8.1-2etch1_ia64.deb
http://security.debian.org/pool/updates/main/w/wzdftpd/wzdftpd-back-pgsql_0.8.1-2etch1_ia64.deb
http://security.debian.org/pool/updates/main/w/wzdftpd/wzdftpd_0.8.1-2etch1_ia64.deb
http://security.debian.org/pool/updates/main/w/wzdftpd/wzdftpd-mod-avahi_0.8.1-2etch1_ia64.deb
http://security.debian.org/pool/updates/main/w/wzdftpd/wzdftpd-dev_0.8.1-2etch1_ia64.deb
mips
http://security.debian.org/pool/updates/main/w/wzdftpd/wzdftpd-back-mysql_0.8.1-2etch1_mips.deb
http://security.debian.org/pool/updates/main/w/wzdftpd/wzdftpd-mod-perl_0.8.1-2etch1_mips.deb
http://security.debian.org/pool/updates/main/w/wzdftpd/wzdftpd-mod-avahi_0.8.1-2etch1_mips.deb
http://security.debian.org/pool/updates/main/w/wzdftpd/wzdftpd-back-pgsql_0.8.1-2etch1_mips.deb
http://security.debian.org/pool/updates/main/w/wzdftpd/wzdftpd-dev_0.8.1-2etch1_mips.deb
http://security.debian.org/pool/updates/main/w/wzdftpd/wzdftpd-mod-tcl_0.8.1-2etch1_mips.deb
http://security.debian.org/pool/updates/main/w/wzdftpd/wzdftpd_0.8.1-2etch1_mips.deb
mipsel
http://security.debian.org/pool/updates/main/w/wzdftpd/wzdftpd-dev_0.8.1-2etch1_mipsel.deb
http://security.debian.org/pool/updates/main/w/wzdftpd/wzdftpd-back-pgsql_0.8.1-2etch1_mipsel.deb
http://security.debian.org/pool/updates/main/w/wzdftpd/wzdftpd-mod-tcl_0.8.1-2etch1_mipsel.deb
http://security.debian.org/pool/updates/main/w/wzdftpd/wzdftpd_0.8.1-2etch1_mipsel.deb
http://security.debian.org/pool/updates/main/w/wzdftpd/wzdftpd-back-mysql_0.8.1-2etch1_mipsel.deb
http://security.debian.org/pool/updates/main/w/wzdftpd/wzdftpd-mod-perl_0.8.1-2etch1_mipsel.deb
http://security.debian.org/pool/updates/main/w/wzdftpd/wzdftpd-mod-avahi_0.8.1-2etch1_mipsel.deb
powerpc
http://security.debian.org/pool/updates/main/w/wzdftpd/wzdftpd-mod-tcl_0.8.1-2etch1_powerpc.deb
http://security.debian.org/pool/updates/main/w/wzdftpd/wzdftpd-dev_0.8.1-2etch1_powerpc.deb
http://security.debian.org/pool/updates/main/w/wzdftpd/wzdftpd-mod-avahi_0.8.1-2etch1_powerpc.deb
http://security.debian.org/pool/updates/main/w/wzdftpd/wzdftpd-back-pgsql_0.8.1-2etch1_powerpc.deb
http://security.debian.org/pool/updates/main/w/wzdftpd/wzdftpd-mod-perl_0.8.1-2etch1_powerpc.deb
http://security.debian.org/pool/updates/main/w/wzdftpd/wzdftpd_0.8.1-2etch1_powerpc.deb
http://security.debian.org/pool/updates/main/w/wzdftpd/wzdftpd-back-mysql_0.8.1-2etch1_powerpc.deb
s390
http://security.debian.org/pool/updates/main/w/wzdftpd/wzdftpd-back-mysql_0.8.1-2etch1_s390.deb
http://security.debian.org/pool/updates/main/w/wzdftpd/wzdftpd-mod-tcl_0.8.1-2etch1_s390.deb
http://security.debian.org/pool/updates/main/w/wzdftpd/wzdftpd-back-pgsql_0.8.1-2etch1_s390.deb
http://security.debian.org/pool/updates/main/w/wzdftpd/wzdftpd_0.8.1-2etch1_s390.deb
http://security.debian.org/pool/updates/main/w/wzdftpd/wzdftpd-dev_0.8.1-2etch1_s390.deb
http://security.debian.org/pool/updates/main/w/wzdftpd/wzdftpd-mod-avahi_0.8.1-2etch1_s390.deb
http://security.debian.org/pool/updates/main/w/wzdftpd/wzdftpd-mod-perl_0.8.1-2etch1_s390.deb
sparc
http://security.debian.org/pool/updates/main/w/wzdftpd/wzdftpd-back-mysql_0.8.1-2etch1_sparc.deb
http://security.debian.org/pool/updates/main/w/wzdftpd/wzdftpd-mod-tcl_0.8.1-2etch1_sparc.deb
http://security.debian.org/pool/updates/main/w/wzdftpd/wzdftpd-dev_0.8.1-2etch1_sparc.deb
http://security.debian.org/pool/updates/main/w/wzdftpd/wzdftpd_0.8.1-2etch1_sparc.deb
http://security.debian.org/pool/updates/main/w/wzdftpd/wzdftpd-back-pgsql_0.8.1-2etch1_sparc.deb
http://security.debian.org/pool/updates/main/w/wzdftpd/wzdftpd-mod-avahi_0.8.1-2etch1_sparc.deb
http://security.debian.org/pool/updates/main/w/wzdftpd/wzdftpd-mod-perl_0.8.1-2etch1_sparc.deb

Identificadores estándar

Propiedad Valor
CVE CVE-2007-5300
BID 25967

Recursos adicionales

Debian Security Advisory (DSA 1452-1)
http://lists.debian.org/debian-security-announce/debian-security-announce-2008/msg00010.html

Histórico de versiones

Versión Comentario Fecha
1.0 Aviso emitido 2008-01-08

Miembros de

Ministerio de Defensa
CNI
CCN
CCN-CERT