Bulletin d'alerte Debian

DSA-703-1 krb5 -- Dépassements de tampon

Date du rapport:

1 avril 2005

Paquets concernés:

Vulnérabilité:

Oui

Références dans la base de données de sécurité:

Dans le dictionnaire CVE du Mitre : CVE-2005-0468, CVE-2005-0469.
Les annonces de vulnérabilité et les bulletins d'alerte du CERT : VU#341908, VU#291924.

Pour plus d'information:

Plusieurs problèmes ont été découverts dans les clients telnet qui pourraient être exploités par des démons malveillants auxquels les clients se connecteraient. Le projet « Common Vulnerabilities and Exposures » a identifié les problèmes suivants :

CAN-2005-0468
Gaël Delalleau a découvert un dépassement de tampon dans la fonction env_opt_add() qui permettait à un attaquant distant d'exécuter du code arbitraire.
CAN-2005-0469
Gaël Delalleau a découvert un dépassement de tampon dans la gestion des sous-options LINEMODE des clients telnet. Du code arbitraire pouvait être exécuté sur le client lors de la connexion à un serveur malintentionné.

Pour l'actuelle distribution stable (Woody), ces problèmes ont été corrigés dans la version 1.2.4-5woody8.

Pour la distribution instable (Sid), ces problèmes ont été corrigés dans la version 1.3.6-1.

Nous vous recommandons de mettre à jour votre paquet krb5.

Corrigé dans:

Debian GNU/Linux 3.0 (woody)

Source :: 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
Composant indépendant de l'architecture :: 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

Les sommes MD5 des fichiers indiqués sont disponibles sur la page originale de l'alerte de sécurité.