int(3697)

Vulnerability Bulletins


Denegación de servicio en wzdftpd

Vulnerability classification

Property Value
Confidence level Oficial
Impact Denegación de Servicio
Dificulty Principiante
Required attacker level Acceso remoto sin cuenta a un servicio estandar

System information

Property Value
Affected manufacturer GNU/Linux
Affected software wzdftpd 0.8.0
wzdftpd 0.8.2

Description

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.

Solution



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

Standar resources

Property Value
CVE CVE-2007-5300
BID 25967

Other resources

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

Version history

Version Comments Date
1.0 Aviso emitido 2008-01-08
Ministerio de Defensa
CNI
CCN
CCN-CERT