int(4807)

Boletines de Vulnerabilidades


Salto de verificación de certificado en cURL

Clasificación de la vulnerabilidad

Propiedad Valor
Nivel de Confianza Oficial
Impacto Aumento de privilegios
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 cURL < 7.19.6

Descripción

Se ha descubierto una vulnerabilidad en cURL. La vulnerabilidad reside en un error en el manejo de caracteres NULL en certificados X.509.

Un atacante remoto podría saltar la verificación de un certificado mediante un certificado especialmente diseñado.

Solución



Actualización de software

Red Hat (RHSA-2009:1209-1)
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. 3)
Red Hat Enterprise Linux AS (v. 4)
Red Hat Enterprise Linux AS (v. 4.8.z)
Red Hat Enterprise Linux Desktop (v. 5 cliente)
Red Hat Enterprise Linux ES (v. 3)
Red Hat Enterprise Linux ES (v. 4)
Red Hat Enterprise Linux ES (v. 4.8.z)
Red Hat Enterprise Linux EUS (v. 5.3.z servidor)
Red Hat Enterprise Linux WS (v. 3)
Red Hat Enterprise Linux WS (v. 4)
https://rhn.redhat.com/

Debian (DSA-1869-1)

Debian Linux 4.0
Source
http://security.debian.org/pool/updates/main/c/curl/curl_7.15.5-1etch3.diff.gz
http://security.debian.org/pool/updates/main/c/curl/curl_7.15.5.orig.tar.gz
http://security.debian.org/pool/updates/main/c/curl/curl_7.15.5-1etch3.dsc
Arquitectura independiente:
http://security.debian.org/pool/updates/main/c/curl/libcurl3-dev_7.15.5-1etch3_all.deb
alpha (DEC Alpha)
http://security.debian.org/pool/updates/main/c/curl/libcurl3-openssl-dev_7.15.5-1etch3_alpha.deb
http://security.debian.org/pool/updates/main/c/curl/libcurl3-dbg_7.15.5-1etch3_alpha.deb
http://security.debian.org/pool/updates/main/c/curl/libcurl3_7.15.5-1etch3_alpha.deb
http://security.debian.org/pool/updates/main/c/curl/libcurl3-gnutls-dev_7.15.5-1etch3_alpha.deb
http://security.debian.org/pool/updates/main/c/curl/curl_7.15.5-1etch3_alpha.deb
http://security.debian.org/pool/updates/main/c/curl/libcurl3-gnutls_7.15.5-1etch3_alpha.deb
amd64 (AMD x86_64 (AMD64))
http://security.debian.org/pool/updates/main/c/curl/curl_7.15.5-1etch3_amd64.deb
http://security.debian.org/pool/updates/main/c/curl/libcurl3-openssl-dev_7.15.5-1etch3_amd64.deb
http://security.debian.org/pool/updates/main/c/curl/libcurl3-dbg_7.15.5-1etch3_amd64.deb
http://security.debian.org/pool/updates/main/c/curl/libcurl3-gnutls-dev_7.15.5-1etch3_amd64.deb
http://security.debian.org/pool/updates/main/c/curl/libcurl3_7.15.5-1etch3_amd64.deb
http://security.debian.org/pool/updates/main/c/curl/libcurl3-gnutls_7.15.5-1etch3_amd64.deb
arm (ARM)
http://security.debian.org/pool/updates/main/c/curl/libcurl3-dbg_7.15.5-1etch3_arm.deb
http://security.debian.org/pool/updates/main/c/curl/libcurl3-gnutls-dev_7.15.5-1etch3_arm.deb
http://security.debian.org/pool/updates/main/c/curl/libcurl3-gnutls_7.15.5-1etch3_arm.deb
http://security.debian.org/pool/updates/main/c/curl/curl_7.15.5-1etch3_arm.deb
http://security.debian.org/pool/updates/main/c/curl/libcurl3-openssl-dev_7.15.5-1etch3_arm.deb
http://security.debian.org/pool/updates/main/c/curl/libcurl3_7.15.5-1etch3_arm.deb
hppa (HP PA RISC)
http://security.debian.org/pool/updates/main/c/curl/libcurl3-gnutls_7.15.5-1etch3_hppa.deb
http://security.debian.org/pool/updates/main/c/curl/libcurl3-gnutls-dev_7.15.5-1etch3_hppa.deb
http://security.debian.org/pool/updates/main/c/curl/libcurl3-dbg_7.15.5-1etch3_hppa.deb
http://security.debian.org/pool/updates/main/c/curl/libcurl3-openssl-dev_7.15.5-1etch3_hppa.deb
http://security.debian.org/pool/updates/main/c/curl/curl_7.15.5-1etch3_hppa.deb
http://security.debian.org/pool/updates/main/c/curl/libcurl3_7.15.5-1etch3_hppa.deb
i386 (Intel ia32)
http://security.debian.org/pool/updates/main/c/curl/libcurl3_7.15.5-1etch3_i386.deb
http://security.debian.org/pool/updates/main/c/curl/curl_7.15.5-1etch3_i386.deb
http://security.debian.org/pool/updates/main/c/curl/libcurl3-dbg_7.15.5-1etch3_i386.deb
http://security.debian.org/pool/updates/main/c/curl/libcurl3-gnutls-dev_7.15.5-1etch3_i386.deb
http://security.debian.org/pool/updates/main/c/curl/libcurl3-openssl-dev_7.15.5-1etch3_i386.deb
http://security.debian.org/pool/updates/main/c/curl/libcurl3-gnutls_7.15.5-1etch3_i386.deb
ia64 (Intel ia64)
http://security.debian.org/pool/updates/main/c/curl/libcurl3_7.15.5-1etch3_ia64.deb
http://security.debian.org/pool/updates/main/c/curl/curl_7.15.5-1etch3_ia64.deb
http://security.debian.org/pool/updates/main/c/curl/libcurl3-gnutls_7.15.5-1etch3_ia64.deb
http://security.debian.org/pool/updates/main/c/curl/libcurl3-dbg_7.15.5-1etch3_ia64.deb
http://security.debian.org/pool/updates/main/c/curl/libcurl3-openssl-dev_7.15.5-1etch3_ia64.deb
http://security.debian.org/pool/updates/main/c/curl/libcurl3-gnutls-dev_7.15.5-1etch3_ia64.deb
mips (MIPS (Big Endian))
http://security.debian.org/pool/updates/main/c/curl/curl_7.15.5-1etch3_mips.deb
http://security.debian.org/pool/updates/main/c/curl/libcurl3_7.15.5-1etch3_mips.deb
http://security.debian.org/pool/updates/main/c/curl/libcurl3-dbg_7.15.5-1etch3_mips.deb
http://security.debian.org/pool/updates/main/c/curl/libcurl3-gnutls_7.15.5-1etch3_mips.deb
http://security.debian.org/pool/updates/main/c/curl/libcurl3-gnutls-dev_7.15.5-1etch3_mips.deb
http://security.debian.org/pool/updates/main/c/curl/libcurl3-openssl-dev_7.15.5-1etch3_mips.deb
powerpc (PowerPC)
http://security.debian.org/pool/updates/main/c/curl/libcurl3_7.15.5-1etch3_powerpc.deb
http://security.debian.org/pool/updates/main/c/curl/libcurl3-gnutls_7.15.5-1etch3_powerpc.deb
http://security.debian.org/pool/updates/main/c/curl/libcurl3-openssl-dev_7.15.5-1etch3_powerpc.deb
http://security.debian.org/pool/updates/main/c/curl/libcurl3-gnutls-dev_7.15.5-1etch3_powerpc.deb
http://security.debian.org/pool/updates/main/c/curl/libcurl3-dbg_7.15.5-1etch3_powerpc.deb
http://security.debian.org/pool/updates/main/c/curl/curl_7.15.5-1etch3_powerpc.deb
s390 (IBM S/390)
http://security.debian.org/pool/updates/main/c/curl/libcurl3-gnutls-dev_7.15.5-1etch3_s390.deb
http://security.debian.org/pool/updates/main/c/curl/libcurl3-openssl-dev_7.15.5-1etch3_s390.deb
http://security.debian.org/pool/updates/main/c/curl/libcurl3-gnutls_7.15.5-1etch3_s390.deb
http://security.debian.org/pool/updates/main/c/curl/libcurl3-dbg_7.15.5-1etch3_s390.deb
http://security.debian.org/pool/updates/main/c/curl/curl_7.15.5-1etch3_s390.deb
http://security.debian.org/pool/updates/main/c/curl/libcurl3_7.15.5-1etch3_s390.deb

Debian (DSA-1869-1)

Debian Linux 5.0
Source
http://security.debian.org/pool/updates/main/c/curl/curl_7.18.2-8lenny3.dsc
http://security.debian.org/pool/updates/main/c/curl/curl_7.18.2-8lenny3.diff.gz
http://security.debian.org/pool/updates/main/c/curl/curl_7.18.2.orig.tar.gz
alpha (DEC Alpha)
http://security.debian.org/pool/updates/main/c/curl/libcurl3-dbg_7.18.2-8lenny3_alpha.deb
http://security.debian.org/pool/updates/main/c/curl/libcurl3_7.18.2-8lenny3_alpha.deb
http://security.debian.org/pool/updates/main/c/curl/libcurl4-gnutls-dev_7.18.2-8lenny3_alpha.deb
http://security.debian.org/pool/updates/main/c/curl/curl_7.18.2-8lenny3_alpha.deb
http://security.debian.org/pool/updates/main/c/curl/libcurl3-gnutls_7.18.2-8lenny3_alpha.deb
http://security.debian.org/pool/updates/main/c/curl/libcurl4-openssl-dev_7.18.2-8lenny3_alpha.deb
amd64 (AMD x86_64 (AMD64))
http://security.debian.org/pool/updates/main/c/curl/libcurl4-openssl-dev_7.18.2-8lenny3_amd64.deb
http://security.debian.org/pool/updates/main/c/curl/curl_7.18.2-8lenny3_amd64.deb
http://security.debian.org/pool/updates/main/c/curl/libcurl3-dbg_7.18.2-8lenny3_amd64.deb
http://security.debian.org/pool/updates/main/c/curl/libcurl3_7.18.2-8lenny3_amd64.deb
http://security.debian.org/pool/updates/main/c/curl/libcurl3-gnutls_7.18.2-8lenny3_amd64.deb
http://security.debian.org/pool/updates/main/c/curl/libcurl4-gnutls-dev_7.18.2-8lenny3_amd64.deb
arm (ARM)
http://security.debian.org/pool/updates/main/c/curl/libcurl4-openssl-dev_7.18.2-8lenny3_arm.deb
http://security.debian.org/pool/updates/main/c/curl/libcurl3-gnutls_7.18.2-8lenny3_arm.deb
http://security.debian.org/pool/updates/main/c/curl/libcurl3_7.18.2-8lenny3_arm.deb
http://security.debian.org/pool/updates/main/c/curl/curl_7.18.2-8lenny3_arm.deb
http://security.debian.org/pool/updates/main/c/curl/libcurl3-dbg_7.18.2-8lenny3_arm.deb
http://security.debian.org/pool/updates/main/c/curl/libcurl4-gnutls-dev_7.18.2-8lenny3_arm.deb
armel (ARM EABI)
http://security.debian.org/pool/updates/main/c/curl/curl_7.18.2-8lenny3_armel.deb
http://security.debian.org/pool/updates/main/c/curl/libcurl4-gnutls-dev_7.18.2-8lenny3_armel.deb
http://security.debian.org/pool/updates/main/c/curl/libcurl3-gnutls_7.18.2-8lenny3_armel.deb
http://security.debian.org/pool/updates/main/c/curl/libcurl4-openssl-dev_7.18.2-8lenny3_armel.deb
http://security.debian.org/pool/updates/main/c/curl/libcurl3-dbg_7.18.2-8lenny3_armel.deb
http://security.debian.org/pool/updates/main/c/curl/libcurl3_7.18.2-8lenny3_armel.deb
hppa (HP PA RISC)
http://security.debian.org/pool/updates/main/c/curl/libcurl4-gnutls-dev_7.18.2-8lenny3_hppa.deb
http://security.debian.org/pool/updates/main/c/curl/libcurl3_7.18.2-8lenny3_hppa.deb
http://security.debian.org/pool/updates/main/c/curl/libcurl3-gnutls_7.18.2-8lenny3_hppa.deb
http://security.debian.org/pool/updates/main/c/curl/curl_7.18.2-8lenny3_hppa.deb
http://security.debian.org/pool/updates/main/c/curl/libcurl3-dbg_7.18.2-8lenny3_hppa.deb
http://security.debian.org/pool/updates/main/c/curl/libcurl4-openssl-dev_7.18.2-8lenny3_hppa.deb
i386 (Intel ia32)
http://security.debian.org/pool/updates/main/c/curl/curl_7.18.2-8lenny3_i386.deb
http://security.debian.org/pool/updates/main/c/curl/libcurl3-gnutls_7.18.2-8lenny3_i386.deb
http://security.debian.org/pool/updates/main/c/curl/libcurl4-gnutls-dev_7.18.2-8lenny3_i386.deb
http://security.debian.org/pool/updates/main/c/curl/libcurl4-openssl-dev_7.18.2-8lenny3_i386.deb
http://security.debian.org/pool/updates/main/c/curl/libcurl3-dbg_7.18.2-8lenny3_i386.deb
http://security.debian.org/pool/updates/main/c/curl/libcurl3_7.18.2-8lenny3_i386.deb
ia64 (Intel ia64)
http://security.debian.org/pool/updates/main/c/curl/libcurl3-gnutls_7.18.2-8lenny3_ia64.deb
http://security.debian.org/pool/updates/main/c/curl/curl_7.18.2-8lenny3_ia64.deb
http://security.debian.org/pool/updates/main/c/curl/libcurl3_7.18.2-8lenny3_ia64.deb
http://security.debian.org/pool/updates/main/c/curl/libcurl3-dbg_7.18.2-8lenny3_ia64.deb
http://security.debian.org/pool/updates/main/c/curl/libcurl4-openssl-dev_7.18.2-8lenny3_ia64.deb
http://security.debian.org/pool/updates/main/c/curl/libcurl4-gnutls-dev_7.18.2-8lenny3_ia64.deb
mips (MIPS (Big Endian))
http://security.debian.org/pool/updates/main/c/curl/libcurl3-dbg_7.18.2-8lenny3_mips.deb
http://security.debian.org/pool/updates/main/c/curl/curl_7.18.2-8lenny3_mips.deb
http://security.debian.org/pool/updates/main/c/curl/libcurl3-gnutls_7.18.2-8lenny3_mips.deb
http://security.debian.org/pool/updates/main/c/curl/libcurl3_7.18.2-8lenny3_mips.deb
http://security.debian.org/pool/updates/main/c/curl/libcurl4-gnutls-dev_7.18.2-8lenny3_mips.deb
http://security.debian.org/pool/updates/main/c/curl/libcurl4-openssl-dev_7.18.2-8lenny3_mips.deb
powerpc (PowerPC)
http://security.debian.org/pool/updates/main/c/curl/curl_7.18.2-8lenny3_powerpc.deb
http://security.debian.org/pool/updates/main/c/curl/libcurl3-dbg_7.18.2-8lenny3_powerpc.deb
http://security.debian.org/pool/updates/main/c/curl/libcurl4-gnutls-dev_7.18.2-8lenny3_powerpc.deb
http://security.debian.org/pool/updates/main/c/curl/libcurl3-gnutls_7.18.2-8lenny3_powerpc.deb
http://security.debian.org/pool/updates/main/c/curl/libcurl4-openssl-dev_7.18.2-8lenny3_powerpc.deb
http://security.debian.org/pool/updates/main/c/curl/libcurl3_7.18.2-8lenny3_powerpc.deb

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

Identificadores estándar

Propiedad Valor
CVE CVE-2009-2417
BID

Recursos adicionales

Red Hat Security Advisory (RHSA-2009:1209-1)
https://rhn.redhat.com/errata/RHSA-2009-1209.html

Debian Security Advisory (DSA-1869-1)
http://lists.debian.org/debian-security-announce/2009/msg00186.html

SUSE Security Advisory (SUSE-SR:2009:014)
http://www.novell.com/linux/security/advisories/2009_14_sr.html

Histórico de versiones

Versión Comentario Fecha
1.0 Aviso emitido 2009-08-14
1.1 Aviso emitido por Debian (DSA-1869-1) 2009-08-26
1.2 Aviso emitido por Suse (SUSE-SR:2009:014) 2009-09-10

Miembros de

Ministerio de Defensa
CNI
CCN
CCN-CERT