Aviso de seguridad de Debian

DSA-703-1 krb5 -- desbordamientos de buffer

Fecha del informe:

1 de abr de 2005

Paquetes afectados:

Vulnerable:

Sí

Referencias a bases de datos de seguridad:

En el diccionario CVE de Mitre: CVE-2005-0468, CVE-2005-0469.
Notas y avisos de incidentes y vulnerabilidades en CERT: VU#341908, VU#291924.

Información adicional:

Se han descubierto varios problemas en los clientes de telnet de los que podían sacar provecho daemons perniciosos con los que se conectara el cliente. El proyecto Common Vulnerabilities and Exposures identifica los siguientes problemas:

CAN-2005-0468
Gaël Delalleau descubrió un desbordamiento de buffer en la función env_opt_add() que permitía que un atacante remoto ejecutara código arbitrario.
CAN-2005-0469
Gaël Delalleau descubrió un desbordamiento de buffer en la gestión de las subopciones LINEMODE en los clientes de telnet. Esto podría conducir a la ejecución de código arbitrario cuando se conectara a un servidor pernicioso.

Para la distribución estable (woody), estos problemas se han corregido en la versión 1.2.4-5woody8.

Para la distribución inestable (sid), estos problemas se han corregido en la versión 1.3.6-1.

Le recomendamos que actualice el paquete krb5.

Arreglado en:

Debian GNU/Linux 3.0 (woody)

Fuentes:: http://security.debian.org/pool/updates/main/k/krb5/krb5_1.2.4-5woody8.dsc; http://security.debian.org/pool/updates/main/k/krb5/krb5_1.2.4-5woody8.diff.gz; http://security.debian.org/pool/updates/main/k/krb5/krb5_1.2.4.orig.tar.gz
Componentes independientes de la arquitectura:: http://security.debian.org/pool/updates/main/k/krb5/krb5-doc_1.2.4-5woody8_all.deb
Alpha:: http://security.debian.org/pool/updates/main/k/krb5/krb5-admin-server_1.2.4-5woody8_alpha.deb; http://security.debian.org/pool/updates/main/k/krb5/krb5-clients_1.2.4-5woody8_alpha.deb; http://security.debian.org/pool/updates/main/k/krb5/krb5-ftpd_1.2.4-5woody8_alpha.deb; http://security.debian.org/pool/updates/main/k/krb5/krb5-kdc_1.2.4-5woody8_alpha.deb; http://security.debian.org/pool/updates/main/k/krb5/krb5-rsh-server_1.2.4-5woody8_alpha.deb; http://security.debian.org/pool/updates/main/k/krb5/krb5-telnetd_1.2.4-5woody8_alpha.deb; http://security.debian.org/pool/updates/main/k/krb5/krb5-user_1.2.4-5woody8_alpha.deb; http://security.debian.org/pool/updates/main/k/krb5/libkadm55_1.2.4-5woody8_alpha.deb; http://security.debian.org/pool/updates/main/k/krb5/libkrb5-dev_1.2.4-5woody8_alpha.deb; http://security.debian.org/pool/updates/main/k/krb5/libkrb53_1.2.4-5woody8_alpha.deb
ARM:: http://security.debian.org/pool/updates/main/k/krb5/krb5-admin-server_1.2.4-5woody8_arm.deb; http://security.debian.org/pool/updates/main/k/krb5/krb5-clients_1.2.4-5woody8_arm.deb; http://security.debian.org/pool/updates/main/k/krb5/krb5-ftpd_1.2.4-5woody8_arm.deb; http://security.debian.org/pool/updates/main/k/krb5/krb5-kdc_1.2.4-5woody8_arm.deb; http://security.debian.org/pool/updates/main/k/krb5/krb5-rsh-server_1.2.4-5woody8_arm.deb; http://security.debian.org/pool/updates/main/k/krb5/krb5-telnetd_1.2.4-5woody8_arm.deb; http://security.debian.org/pool/updates/main/k/krb5/krb5-user_1.2.4-5woody8_arm.deb; http://security.debian.org/pool/updates/main/k/krb5/libkadm55_1.2.4-5woody8_arm.deb; http://security.debian.org/pool/updates/main/k/krb5/libkrb5-dev_1.2.4-5woody8_arm.deb; http://security.debian.org/pool/updates/main/k/krb5/libkrb53_1.2.4-5woody8_arm.deb
Intel IA-32:: http://security.debian.org/pool/updates/main/k/krb5/krb5-admin-server_1.2.4-5woody8_i386.deb; http://security.debian.org/pool/updates/main/k/krb5/krb5-clients_1.2.4-5woody8_i386.deb; http://security.debian.org/pool/updates/main/k/krb5/krb5-ftpd_1.2.4-5woody8_i386.deb; http://security.debian.org/pool/updates/main/k/krb5/krb5-kdc_1.2.4-5woody8_i386.deb; http://security.debian.org/pool/updates/main/k/krb5/krb5-rsh-server_1.2.4-5woody8_i386.deb; http://security.debian.org/pool/updates/main/k/krb5/krb5-telnetd_1.2.4-5woody8_i386.deb; http://security.debian.org/pool/updates/main/k/krb5/krb5-user_1.2.4-5woody8_i386.deb; http://security.debian.org/pool/updates/main/k/krb5/libkadm55_1.2.4-5woody8_i386.deb; http://security.debian.org/pool/updates/main/k/krb5/libkrb5-dev_1.2.4-5woody8_i386.deb; http://security.debian.org/pool/updates/main/k/krb5/libkrb53_1.2.4-5woody8_i386.deb
Intel IA-64:: http://security.debian.org/pool/updates/main/k/krb5/krb5-admin-server_1.2.4-5woody8_ia64.deb; http://security.debian.org/pool/updates/main/k/krb5/krb5-clients_1.2.4-5woody8_ia64.deb; http://security.debian.org/pool/updates/main/k/krb5/krb5-ftpd_1.2.4-5woody8_ia64.deb; http://security.debian.org/pool/updates/main/k/krb5/krb5-kdc_1.2.4-5woody8_ia64.deb; http://security.debian.org/pool/updates/main/k/krb5/krb5-rsh-server_1.2.4-5woody8_ia64.deb; http://security.debian.org/pool/updates/main/k/krb5/krb5-telnetd_1.2.4-5woody8_ia64.deb; http://security.debian.org/pool/updates/main/k/krb5/krb5-user_1.2.4-5woody8_ia64.deb; http://security.debian.org/pool/updates/main/k/krb5/libkadm55_1.2.4-5woody8_ia64.deb; http://security.debian.org/pool/updates/main/k/krb5/libkrb5-dev_1.2.4-5woody8_ia64.deb; http://security.debian.org/pool/updates/main/k/krb5/libkrb53_1.2.4-5woody8_ia64.deb
HPPA:: http://security.debian.org/pool/updates/main/k/krb5/krb5-admin-server_1.2.4-5woody8_hppa.deb; http://security.debian.org/pool/updates/main/k/krb5/krb5-clients_1.2.4-5woody8_hppa.deb; http://security.debian.org/pool/updates/main/k/krb5/krb5-ftpd_1.2.4-5woody8_hppa.deb; http://security.debian.org/pool/updates/main/k/krb5/krb5-kdc_1.2.4-5woody8_hppa.deb; http://security.debian.org/pool/updates/main/k/krb5/krb5-rsh-server_1.2.4-5woody8_hppa.deb; http://security.debian.org/pool/updates/main/k/krb5/krb5-telnetd_1.2.4-5woody8_hppa.deb; http://security.debian.org/pool/updates/main/k/krb5/krb5-user_1.2.4-5woody8_hppa.deb; http://security.debian.org/pool/updates/main/k/krb5/libkadm55_1.2.4-5woody8_hppa.deb; http://security.debian.org/pool/updates/main/k/krb5/libkrb5-dev_1.2.4-5woody8_hppa.deb; http://security.debian.org/pool/updates/main/k/krb5/libkrb53_1.2.4-5woody8_hppa.deb
Motorola 680x0:: http://security.debian.org/pool/updates/main/k/krb5/krb5-admin-server_1.2.4-5woody8_m68k.deb; http://security.debian.org/pool/updates/main/k/krb5/krb5-clients_1.2.4-5woody8_m68k.deb; http://security.debian.org/pool/updates/main/k/krb5/krb5-ftpd_1.2.4-5woody8_m68k.deb; http://security.debian.org/pool/updates/main/k/krb5/krb5-kdc_1.2.4-5woody8_m68k.deb; http://security.debian.org/pool/updates/main/k/krb5/krb5-rsh-server_1.2.4-5woody8_m68k.deb; http://security.debian.org/pool/updates/main/k/krb5/krb5-telnetd_1.2.4-5woody8_m68k.deb; http://security.debian.org/pool/updates/main/k/krb5/krb5-user_1.2.4-5woody8_m68k.deb; http://security.debian.org/pool/updates/main/k/krb5/libkadm55_1.2.4-5woody8_m68k.deb; http://security.debian.org/pool/updates/main/k/krb5/libkrb5-dev_1.2.4-5woody8_m68k.deb; http://security.debian.org/pool/updates/main/k/krb5/libkrb53_1.2.4-5woody8_m68k.deb
Big endian MIPS:: http://security.debian.org/pool/updates/main/k/krb5/krb5-admin-server_1.2.4-5woody8_mips.deb; http://security.debian.org/pool/updates/main/k/krb5/krb5-clients_1.2.4-5woody8_mips.deb; http://security.debian.org/pool/updates/main/k/krb5/krb5-ftpd_1.2.4-5woody8_mips.deb; http://security.debian.org/pool/updates/main/k/krb5/krb5-kdc_1.2.4-5woody8_mips.deb; http://security.debian.org/pool/updates/main/k/krb5/krb5-rsh-server_1.2.4-5woody8_mips.deb; http://security.debian.org/pool/updates/main/k/krb5/krb5-telnetd_1.2.4-5woody8_mips.deb; http://security.debian.org/pool/updates/main/k/krb5/krb5-user_1.2.4-5woody8_mips.deb; http://security.debian.org/pool/updates/main/k/krb5/libkadm55_1.2.4-5woody8_mips.deb; http://security.debian.org/pool/updates/main/k/krb5/libkrb5-dev_1.2.4-5woody8_mips.deb; http://security.debian.org/pool/updates/main/k/krb5/libkrb53_1.2.4-5woody8_mips.deb
Little endian MIPS:: http://security.debian.org/pool/updates/main/k/krb5/krb5-admin-server_1.2.4-5woody8_mipsel.deb; http://security.debian.org/pool/updates/main/k/krb5/krb5-clients_1.2.4-5woody8_mipsel.deb; http://security.debian.org/pool/updates/main/k/krb5/krb5-ftpd_1.2.4-5woody8_mipsel.deb; http://security.debian.org/pool/updates/main/k/krb5/krb5-kdc_1.2.4-5woody8_mipsel.deb; http://security.debian.org/pool/updates/main/k/krb5/krb5-rsh-server_1.2.4-5woody8_mipsel.deb; http://security.debian.org/pool/updates/main/k/krb5/krb5-telnetd_1.2.4-5woody8_mipsel.deb; http://security.debian.org/pool/updates/main/k/krb5/krb5-user_1.2.4-5woody8_mipsel.deb; http://security.debian.org/pool/updates/main/k/krb5/libkadm55_1.2.4-5woody8_mipsel.deb; http://security.debian.org/pool/updates/main/k/krb5/libkrb5-dev_1.2.4-5woody8_mipsel.deb; http://security.debian.org/pool/updates/main/k/krb5/libkrb53_1.2.4-5woody8_mipsel.deb
PowerPC:: http://security.debian.org/pool/updates/main/k/krb5/krb5-admin-server_1.2.4-5woody8_powerpc.deb; http://security.debian.org/pool/updates/main/k/krb5/krb5-clients_1.2.4-5woody8_powerpc.deb; http://security.debian.org/pool/updates/main/k/krb5/krb5-ftpd_1.2.4-5woody8_powerpc.deb; http://security.debian.org/pool/updates/main/k/krb5/krb5-kdc_1.2.4-5woody8_powerpc.deb; http://security.debian.org/pool/updates/main/k/krb5/krb5-rsh-server_1.2.4-5woody8_powerpc.deb; http://security.debian.org/pool/updates/main/k/krb5/krb5-telnetd_1.2.4-5woody8_powerpc.deb; http://security.debian.org/pool/updates/main/k/krb5/krb5-user_1.2.4-5woody8_powerpc.deb; http://security.debian.org/pool/updates/main/k/krb5/libkadm55_1.2.4-5woody8_powerpc.deb; http://security.debian.org/pool/updates/main/k/krb5/libkrb5-dev_1.2.4-5woody8_powerpc.deb; http://security.debian.org/pool/updates/main/k/krb5/libkrb53_1.2.4-5woody8_powerpc.deb
IBM S/390:: http://security.debian.org/pool/updates/main/k/krb5/krb5-admin-server_1.2.4-5woody8_s390.deb; http://security.debian.org/pool/updates/main/k/krb5/krb5-clients_1.2.4-5woody8_s390.deb; http://security.debian.org/pool/updates/main/k/krb5/krb5-ftpd_1.2.4-5woody8_s390.deb; http://security.debian.org/pool/updates/main/k/krb5/krb5-kdc_1.2.4-5woody8_s390.deb; http://security.debian.org/pool/updates/main/k/krb5/krb5-rsh-server_1.2.4-5woody8_s390.deb; http://security.debian.org/pool/updates/main/k/krb5/krb5-telnetd_1.2.4-5woody8_s390.deb; http://security.debian.org/pool/updates/main/k/krb5/krb5-user_1.2.4-5woody8_s390.deb; http://security.debian.org/pool/updates/main/k/krb5/libkadm55_1.2.4-5woody8_s390.deb; http://security.debian.org/pool/updates/main/k/krb5/libkrb5-dev_1.2.4-5woody8_s390.deb; http://security.debian.org/pool/updates/main/k/krb5/libkrb53_1.2.4-5woody8_s390.deb
Sun Sparc:: http://security.debian.org/pool/updates/main/k/krb5/krb5-admin-server_1.2.4-5woody8_sparc.deb; http://security.debian.org/pool/updates/main/k/krb5/krb5-clients_1.2.4-5woody8_sparc.deb; http://security.debian.org/pool/updates/main/k/krb5/krb5-ftpd_1.2.4-5woody8_sparc.deb; http://security.debian.org/pool/updates/main/k/krb5/krb5-kdc_1.2.4-5woody8_sparc.deb; http://security.debian.org/pool/updates/main/k/krb5/krb5-rsh-server_1.2.4-5woody8_sparc.deb; http://security.debian.org/pool/updates/main/k/krb5/krb5-telnetd_1.2.4-5woody8_sparc.deb; http://security.debian.org/pool/updates/main/k/krb5/krb5-user_1.2.4-5woody8_sparc.deb; http://security.debian.org/pool/updates/main/k/krb5/libkadm55_1.2.4-5woody8_sparc.deb; http://security.debian.org/pool/updates/main/k/krb5/libkrb5-dev_1.2.4-5woody8_sparc.deb; http://security.debian.org/pool/updates/main/k/krb5/libkrb53_1.2.4-5woody8_sparc.deb

Las sumas MD5 de los ficheros que se listan están disponibles en el aviso original.