int(4402)

Boletines de Vulnerabilidades


Salto de validación de certificados en BIND

Clasificación de la vulnerabilidad

Propiedad Valor
Nivel de Confianza Oficial
Impacto Denegación de Servicio
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 BIND 9.4.3

Descripción

Se ha descubierto una vulnerabilidad en BIND 9.4.3. La vulnerabilidad reside en un error en la comprobación del valor desde la función "EVP_VerifyFinal".

Un atacante remoto podría saltar la validación de un certificado mediante una firma SSL/TLS especialmente diseñada para claves DSA y ECDSA.

Solución



Actualización de software

Red Hat (RHSA-2009:0020-6)
RHEL Desktop Workstation (v. 5 cliente)
Red Hat Desktop (v. 3)
Red Hat Desktop (v. 4)
Red Hat Enterprise Linux (v. 5 servidor)
Red Hat Enterprise Linux AS (v. 2.1)
Red Hat Enterprise Linux AS (v. 3)
Red Hat Enterprise Linux AS (v. 4)
Red Hat Enterprise Linux Desktop (v. 5 cliente)
Red Hat Enterprise Linux ES (v. 2.1)
Red Hat Enterprise Linux ES (v. 3)
Red Hat Enterprise Linux ES (v. 4)
Red Hat Enterprise Linux WS (v. 2.1)
Red Hat Enterprise Linux WS (v. 3)
Red Hat Enterprise Linux WS (v. 4)
Red Hat Linux Advanced Workstation 2.1 para Itanium Processor
https://rhn.redhat.com/

Debian (DSA-1703-1)

Debian Linux 4.0
Source
http://security.debian.org/pool/updates/main/b/bind9/bind9_9.3.4-2etch4.dsc
http://security.debian.org/pool/updates/main/b/bind9/bind9_9.3.4-2etch4.diff.gz
http://security.debian.org/pool/updates/main/b/bind9/bind9_9.3.4.orig.tar.gz
Arquitectura independiente:
http://security.debian.org/pool/updates/main/b/bind9/bind9-doc_9.3.4-2etch4_all.deb
alpha (DEC Alpha)
http://security.debian.org/pool/updates/main/b/bind9/lwresd_9.3.4-2etch4_alpha.deb
http://security.debian.org/pool/updates/main/b/bind9/libbind9-0_9.3.4-2etch4_alpha.deb
http://security.debian.org/pool/updates/main/b/bind9/libisccfg1_9.3.4-2etch4_alpha.deb
http://security.debian.org/pool/updates/main/b/bind9/libisccc0_9.3.4-2etch4_alpha.deb
http://security.debian.org/pool/updates/main/b/bind9/libisc11_9.3.4-2etch4_alpha.deb
http://security.debian.org/pool/updates/main/b/bind9/bind9_9.3.4-2etch4_alpha.deb
http://security.debian.org/pool/updates/main/b/bind9/liblwres9_9.3.4-2etch4_alpha.deb
http://security.debian.org/pool/updates/main/b/bind9/libdns22_9.3.4-2etch4_alpha.deb
http://security.debian.org/pool/updates/main/b/bind9/bind9-host_9.3.4-2etch4_alpha.deb
http://security.debian.org/pool/updates/main/b/bind9/libbind-dev_9.3.4-2etch4_alpha.deb
http://security.debian.org/pool/updates/main/b/bind9/dnsutils_9.3.4-2etch4_alpha.deb
amd64 (AMD x86_64 (AMD64))
http://security.debian.org/pool/updates/main/b/bind9/bind9_9.3.4-2etch4_amd64.deb
http://security.debian.org/pool/updates/main/b/bind9/libbind9-0_9.3.4-2etch4_amd64.deb
http://security.debian.org/pool/updates/main/b/bind9/lwresd_9.3.4-2etch4_amd64.deb
http://security.debian.org/pool/updates/main/b/bind9/dnsutils_9.3.4-2etch4_amd64.deb
http://security.debian.org/pool/updates/main/b/bind9/libdns22_9.3.4-2etch4_amd64.deb
http://security.debian.org/pool/updates/main/b/bind9/bind9-host_9.3.4-2etch4_amd64.deb
http://security.debian.org/pool/updates/main/b/bind9/liblwres9_9.3.4-2etch4_amd64.deb
http://security.debian.org/pool/updates/main/b/bind9/libbind-dev_9.3.4-2etch4_amd64.deb
http://security.debian.org/pool/updates/main/b/bind9/libisc11_9.3.4-2etch4_amd64.deb
http://security.debian.org/pool/updates/main/b/bind9/libisccc0_9.3.4-2etch4_amd64.deb
http://security.debian.org/pool/updates/main/b/bind9/libisccfg1_9.3.4-2etch4_amd64.deb
arm (ARM)
http://security.debian.org/pool/updates/main/b/bind9/libisccc0_9.3.4-2etch4_arm.deb
http://security.debian.org/pool/updates/main/b/bind9/dnsutils_9.3.4-2etch4_arm.deb
http://security.debian.org/pool/updates/main/b/bind9/libdns22_9.3.4-2etch4_arm.deb
http://security.debian.org/pool/updates/main/b/bind9/bind9-host_9.3.4-2etch4_arm.deb
http://security.debian.org/pool/updates/main/b/bind9/liblwres9_9.3.4-2etch4_arm.deb
http://security.debian.org/pool/updates/main/b/bind9/libisccfg1_9.3.4-2etch4_arm.deb
http://security.debian.org/pool/updates/main/b/bind9/libisc11_9.3.4-2etch4_arm.deb
http://security.debian.org/pool/updates/main/b/bind9/lwresd_9.3.4-2etch4_arm.deb
http://security.debian.org/pool/updates/main/b/bind9/bind9_9.3.4-2etch4_arm.deb
http://security.debian.org/pool/updates/main/b/bind9/libbind9-0_9.3.4-2etch4_arm.deb
http://security.debian.org/pool/updates/main/b/bind9/libbind-dev_9.3.4-2etch4_arm.deb
hppa (HP PA RISC)
http://security.debian.org/pool/updates/main/b/bind9/libisccc0_9.3.4-2etch4_hppa.deb
http://security.debian.org/pool/updates/main/b/bind9/lwresd_9.3.4-2etch4_hppa.deb
http://security.debian.org/pool/updates/main/b/bind9/dnsutils_9.3.4-2etch4_hppa.deb
http://security.debian.org/pool/updates/main/b/bind9/bind9-host_9.3.4-2etch4_hppa.deb
http://security.debian.org/pool/updates/main/b/bind9/libbind-dev_9.3.4-2etch4_hppa.deb
http://security.debian.org/pool/updates/main/b/bind9/libisc11_9.3.4-2etch4_hppa.deb
http://security.debian.org/pool/updates/main/b/bind9/bind9_9.3.4-2etch4_hppa.deb
http://security.debian.org/pool/updates/main/b/bind9/libdns22_9.3.4-2etch4_hppa.deb
http://security.debian.org/pool/updates/main/b/bind9/liblwres9_9.3.4-2etch4_hppa.deb
http://security.debian.org/pool/updates/main/b/bind9/libbind9-0_9.3.4-2etch4_hppa.deb
http://security.debian.org/pool/updates/main/b/bind9/libisccfg1_9.3.4-2etch4_hppa.deb
i386 (Intel ia32)
http://security.debian.org/pool/updates/main/b/bind9/liblwres9_9.3.4-2etch4_i386.deb
http://security.debian.org/pool/updates/main/b/bind9/libbind9-0_9.3.4-2etch4_i386.deb
http://security.debian.org/pool/updates/main/b/bind9/lwresd_9.3.4-2etch4_i386.deb
http://security.debian.org/pool/updates/main/b/bind9/libdns22_9.3.4-2etch4_i386.deb
http://security.debian.org/pool/updates/main/b/bind9/bind9_9.3.4-2etch4_i386.deb
http://security.debian.org/pool/updates/main/b/bind9/libisc11_9.3.4-2etch4_i386.deb
http://security.debian.org/pool/updates/main/b/bind9/libbind-dev_9.3.4-2etch4_i386.deb
http://security.debian.org/pool/updates/main/b/bind9/dnsutils_9.3.4-2etch4_i386.deb
http://security.debian.org/pool/updates/main/b/bind9/libisccc0_9.3.4-2etch4_i386.deb
http://security.debian.org/pool/updates/main/b/bind9/libisccfg1_9.3.4-2etch4_i386.deb
http://security.debian.org/pool/updates/main/b/bind9/bind9-host_9.3.4-2etch4_i386.deb
ia64 (Intel ia64)
http://security.debian.org/pool/updates/main/b/bind9/libisccfg1_9.3.4-2etch4_ia64.deb
http://security.debian.org/pool/updates/main/b/bind9/libisccc0_9.3.4-2etch4_ia64.deb
http://security.debian.org/pool/updates/main/b/bind9/libbind-dev_9.3.4-2etch4_ia64.deb
http://security.debian.org/pool/updates/main/b/bind9/dnsutils_9.3.4-2etch4_ia64.deb
http://security.debian.org/pool/updates/main/b/bind9/liblwres9_9.3.4-2etch4_ia64.deb
http://security.debian.org/pool/updates/main/b/bind9/libisc11_9.3.4-2etch4_ia64.deb
http://security.debian.org/pool/updates/main/b/bind9/bind9_9.3.4-2etch4_ia64.deb
http://security.debian.org/pool/updates/main/b/bind9/libbind9-0_9.3.4-2etch4_ia64.deb
http://security.debian.org/pool/updates/main/b/bind9/libdns22_9.3.4-2etch4_ia64.deb
http://security.debian.org/pool/updates/main/b/bind9/lwresd_9.3.4-2etch4_ia64.deb
http://security.debian.org/pool/updates/main/b/bind9/bind9-host_9.3.4-2etch4_ia64.deb
mips (MIPS (Big Endian))
http://security.debian.org/pool/updates/main/b/bind9/libisccc0_9.3.4-2etch4_mips.deb
http://security.debian.org/pool/updates/main/b/bind9/libbind9-0_9.3.4-2etch4_mips.deb
http://security.debian.org/pool/updates/main/b/bind9/dnsutils_9.3.4-2etch4_mips.deb
http://security.debian.org/pool/updates/main/b/bind9/lwresd_9.3.4-2etch4_mips.deb
http://security.debian.org/pool/updates/main/b/bind9/libisccfg1_9.3.4-2etch4_mips.deb
http://security.debian.org/pool/updates/main/b/bind9/liblwres9_9.3.4-2etch4_mips.deb
http://security.debian.org/pool/updates/main/b/bind9/libdns22_9.3.4-2etch4_mips.deb
http://security.debian.org/pool/updates/main/b/bind9/libbind-dev_9.3.4-2etch4_mips.deb
http://security.debian.org/pool/updates/main/b/bind9/bind9_9.3.4-2etch4_mips.deb
http://security.debian.org/pool/updates/main/b/bind9/libisc11_9.3.4-2etch4_mips.deb
http://security.debian.org/pool/updates/main/b/bind9/bind9-host_9.3.4-2etch4_mips.deb
mipsel (MIPS (Little Endian))
http://security.debian.org/pool/updates/main/b/bind9/libbind9-0_9.3.4-2etch4_mipsel.deb
http://security.debian.org/pool/updates/main/b/bind9/dnsutils_9.3.4-2etch4_mipsel.deb
http://security.debian.org/pool/updates/main/b/bind9/libisccfg1_9.3.4-2etch4_mipsel.deb
http://security.debian.org/pool/updates/main/b/bind9/bind9-host_9.3.4-2etch4_mipsel.deb
http://security.debian.org/pool/updates/main/b/bind9/liblwres9_9.3.4-2etch4_mipsel.deb
http://security.debian.org/pool/updates/main/b/bind9/libisccc0_9.3.4-2etch4_mipsel.deb
http://security.debian.org/pool/updates/main/b/bind9/libdns22_9.3.4-2etch4_mipsel.deb
http://security.debian.org/pool/updates/main/b/bind9/lwresd_9.3.4-2etch4_mipsel.deb
http://security.debian.org/pool/updates/main/b/bind9/libbind-dev_9.3.4-2etch4_mipsel.deb
http://security.debian.org/pool/updates/main/b/bind9/libisc11_9.3.4-2etch4_mipsel.deb
http://security.debian.org/pool/updates/main/b/bind9/bind9_9.3.4-2etch4_mipsel.deb
powerpc (PowerPC)
http://security.debian.org/pool/updates/main/b/bind9/bind9_9.3.4-2etch4_powerpc.deb
http://security.debian.org/pool/updates/main/b/bind9/dnsutils_9.3.4-2etch4_powerpc.deb
http://security.debian.org/pool/updates/main/b/bind9/libbind9-0_9.3.4-2etch4_powerpc.deb
http://security.debian.org/pool/updates/main/b/bind9/libisccc0_9.3.4-2etch4_powerpc.deb
http://security.debian.org/pool/updates/main/b/bind9/libisc11_9.3.4-2etch4_powerpc.deb
http://security.debian.org/pool/updates/main/b/bind9/libisccfg1_9.3.4-2etch4_powerpc.deb
http://security.debian.org/pool/updates/main/b/bind9/lwresd_9.3.4-2etch4_powerpc.deb
http://security.debian.org/pool/updates/main/b/bind9/libdns22_9.3.4-2etch4_powerpc.deb
http://security.debian.org/pool/updates/main/b/bind9/libbind-dev_9.3.4-2etch4_powerpc.deb
http://security.debian.org/pool/updates/main/b/bind9/bind9-host_9.3.4-2etch4_powerpc.deb
http://security.debian.org/pool/updates/main/b/bind9/liblwres9_9.3.4-2etch4_powerpc.deb
s390 (IBM S/390)
http://security.debian.org/pool/updates/main/b/bind9/libisccfg1_9.3.4-2etch4_s390.deb
http://security.debian.org/pool/updates/main/b/bind9/libbind9-0_9.3.4-2etch4_s390.deb
http://security.debian.org/pool/updates/main/b/bind9/libisc11_9.3.4-2etch4_s390.deb
http://security.debian.org/pool/updates/main/b/bind9/bind9_9.3.4-2etch4_s390.deb
http://security.debian.org/pool/updates/main/b/bind9/dnsutils_9.3.4-2etch4_s390.deb
http://security.debian.org/pool/updates/main/b/bind9/bind9-host_9.3.4-2etch4_s390.deb
http://security.debian.org/pool/updates/main/b/bind9/libdns22_9.3.4-2etch4_s390.deb
http://security.debian.org/pool/updates/main/b/bind9/libbind-dev_9.3.4-2etch4_s390.deb
http://security.debian.org/pool/updates/main/b/bind9/liblwres9_9.3.4-2etch4_s390.deb
http://security.debian.org/pool/updates/main/b/bind9/libisccc0_9.3.4-2etch4_s390.deb
http://security.debian.org/pool/updates/main/b/bind9/lwresd_9.3.4-2etch4_s390.deb
sparc (Sun SPARC/UltraSPARC)
http://security.debian.org/pool/updates/main/b/bind9/dnsutils_9.3.4-2etch4_sparc.deb
http://security.debian.org/pool/updates/main/b/bind9/liblwres9_9.3.4-2etch4_sparc.deb
http://security.debian.org/pool/updates/main/b/bind9/bind9-host_9.3.4-2etch4_sparc.deb
http://security.debian.org/pool/updates/main/b/bind9/libbind-dev_9.3.4-2etch4_sparc.deb
http://security.debian.org/pool/updates/main/b/bind9/libisc11_9.3.4-2etch4_sparc.deb
http://security.debian.org/pool/updates/main/b/bind9/libisccfg1_9.3.4-2etch4_sparc.deb
http://security.debian.org/pool/updates/main/b/bind9/lwresd_9.3.4-2etch4_sparc.deb
http://security.debian.org/pool/updates/main/b/bind9/libdns22_9.3.4-2etch4_sparc.deb
http://security.debian.org/pool/updates/main/b/bind9/libisccc0_9.3.4-2etch4_sparc.deb
http://security.debian.org/pool/updates/main/b/bind9/libbind9-0_9.3.4-2etch4_sparc.deb
http://security.debian.org/pool/updates/main/b/bind9/bind9_9.3.4-2etch4_sparc.deb

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

Sun (250846)
OpenSolaris / builds snv_107 o posterior
http://sunsolve.sun.com/pub-cgi/show.pl?target=patchpage

Identificadores estándar

Propiedad Valor
CVE CVE-2009-0025
BID

Recursos adicionales

Red Hat Security Advisory (RHSA-2009:0020-6)
https://rhn.redhat.com/errata/RHSA-2009-0020.html

Debian Security Advisory (DSA-1703-1)
http://lists.debian.org/debian-security-announce/2009/msg00010.html

SUSE Security Advisory (SUSE-SA:2009:005)
http://www.novell.com/linux/security/advisories/2009_05_bind.html

Sun Alert Notification (250846)
http://sunsolve.sun.com/search/document.do?assetkey=1-66-250846-1

Histórico de versiones

Versión Comentario Fecha
1.0 Aviso emitido 2009-01-12
1.1 Aviso emitido por Debian (DSA-1703-1) 2009-01-13
1.2 Aviso emitido por Suse (SUSE-SA:2009:005) 2009-01-23
1.3 Aviso emitido por Sun (250846) 2009-01-28

Miembros de

Ministerio de Defensa
CNI
CCN
CCN-CERT