int(5577)

Boletines de Vulnerabilidades


Denegación de servicio en "libxml2"

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 libxml2

Descripción

CVE-2010-4008: Se ha descubierto una vulnerabilidad en "libxml2" usada en Google Chrome versiones anteriores a 7.0.517.44 y Apple Safari 5.0.2 y anteriores. La vulnerabilidad reside en la lectura de localizaciones de memoria invalidas durante el procesamiento expresiones XPath malformadas.
Un atacante remoto podría causar un ataque de denegación de servicio mediante la manipulación especial de documentos XML.

Solución



Actualización de software

Debian (DSA-2128-1)

Debian GNU/Linux 5.0 http://security.debian.org/pool/updates/main/libx/libxml2/libxml2_2.6.32.dfsg.orig.tar.gz http://security.debian.org/pool/updates/main/libx/libxml2/libxml2_2.6.32.dfsg-5+lenny2.dsc http://security.debian.org/pool/updates/main/libx/libxml2/libxml2_2.6.32.dfsg-5+lenny2.diff.gz Architecture independent packages: http://security.debian.org/pool/updates/main/libx/libxml2/libxml2-doc_2.6.32.dfsg-5+lenny2_all.deb alpha architecture (DEC Alpha) http://security.debian.org/pool/updates/main/libx/libxml2/libxml2-dbg_2.6.32.dfsg-5+lenny2_alpha.deb http://security.debian.org/pool/updates/main/libx/libxml2/libxml2_2.6.32.dfsg-5+lenny2_alpha.deb http://security.debian.org/pool/updates/main/libx/libxml2/libxml2-dev_2.6.32.dfsg-5+lenny2_alpha.deb http://security.debian.org/pool/updates/main/libx/libxml2/python-libxml2_2.6.32.dfsg-5+lenny2_alpha.deb http://security.debian.org/pool/updates/main/libx/libxml2/libxml2-utils_2.6.32.dfsg-5+lenny2_alpha.deb amd64 architecture (AMD x86_64 (AMD64)) http://security.debian.org/pool/updates/main/libx/libxml2/libxml2-dbg_2.6.32.dfsg-5+lenny2_amd64.deb http://security.debian.org/pool/updates/main/libx/libxml2/python-libxml2_2.6.32.dfsg-5+lenny2_amd64.deb http://security.debian.org/pool/updates/main/libx/libxml2/libxml2-utils_2.6.32.dfsg-5+lenny2_amd64.deb http://security.debian.org/pool/updates/main/libx/libxml2/libxml2-dev_2.6.32.dfsg-5+lenny2_amd64.deb http://security.debian.org/pool/updates/main/libx/libxml2/libxml2_2.6.32.dfsg-5+lenny2_amd64.deb arm architecture (ARM) http://security.debian.org/pool/updates/main/libx/libxml2/python-libxml2_2.6.32.dfsg-5+lenny2_arm.deb http://security.debian.org/pool/updates/main/libx/libxml2/libxml2-dbg_2.6.32.dfsg-5+lenny2_arm.deb http://security.debian.org/pool/updates/main/libx/libxml2/libxml2-dev_2.6.32.dfsg-5+lenny2_arm.deb http://security.debian.org/pool/updates/main/libx/libxml2/libxml2_2.6.32.dfsg-5+lenny2_arm.deb http://security.debian.org/pool/updates/main/libx/libxml2/libxml2-utils_2.6.32.dfsg-5+lenny2_arm.deb armel architecture (ARM EABI) http://security.debian.org/pool/updates/main/libx/libxml2/python-libxml2_2.6.32.dfsg-5+lenny2_armel.deb http://security.debian.org/pool/updates/main/libx/libxml2/libxml2-dbg_2.6.32.dfsg-5+lenny2_armel.deb http://security.debian.org/pool/updates/main/libx/libxml2/libxml2_2.6.32.dfsg-5+lenny2_armel.deb http://security.debian.org/pool/updates/main/libx/libxml2/libxml2-utils_2.6.32.dfsg-5+lenny2_armel.deb http://security.debian.org/pool/updates/main/libx/libxml2/libxml2-dev_2.6.32.dfsg-5+lenny2_armel.deb hppa architecture (HP PA RISC) http://security.debian.org/pool/updates/main/libx/libxml2/libxml2-dev_2.6.32.dfsg-5+lenny2_hppa.deb http://security.debian.org/pool/updates/main/libx/libxml2/python-libxml2_2.6.32.dfsg-5+lenny2_hppa.deb http://security.debian.org/pool/updates/main/libx/libxml2/libxml2-utils_2.6.32.dfsg-5+lenny2_hppa.deb http://security.debian.org/pool/updates/main/libx/libxml2/libxml2-dbg_2.6.32.dfsg-5+lenny2_hppa.deb http://security.debian.org/pool/updates/main/libx/libxml2/libxml2_2.6.32.dfsg-5+lenny2_hppa.deb i386 architecture (Intel ia32) http://security.debian.org/pool/updates/main/libx/libxml2/python-libxml2_2.6.32.dfsg-5+lenny2_i386.deb http://security.debian.org/pool/updates/main/libx/libxml2/libxml2-dbg_2.6.32.dfsg-5+lenny2_i386.deb http://security.debian.org/pool/updates/main/libx/libxml2/libxml2_2.6.32.dfsg-5+lenny2_i386.deb http://security.debian.org/pool/updates/main/libx/libxml2/libxml2-dev_2.6.32.dfsg-5+lenny2_i386.deb http://security.debian.org/pool/updates/main/libx/libxml2/libxml2-utils_2.6.32.dfsg-5+lenny2_i386.deb ia64 architecture (Intel ia64) http://security.debian.org/pool/updates/main/libx/libxml2/libxml2-utils_2.6.32.dfsg-5+lenny2_ia64.deb http://security.debian.org/pool/updates/main/libx/libxml2/libxml2-dev_2.6.32.dfsg-5+lenny2_ia64.deb http://security.debian.org/pool/updates/main/libx/libxml2/libxml2_2.6.32.dfsg-5+lenny2_ia64.deb http://security.debian.org/pool/updates/main/libx/libxml2/libxml2-dbg_2.6.32.dfsg-5+lenny2_ia64.deb http://security.debian.org/pool/updates/main/libx/libxml2/python-libxml2_2.6.32.dfsg-5+lenny2_ia64.deb mipsel architecture (MIPS (Little Endian)) http://security.debian.org/pool/updates/main/libx/libxml2/libxml2-dbg_2.6.32.dfsg-5+lenny2_mipsel.deb http://security.debian.org/pool/updates/main/libx/libxml2/libxml2_2.6.32.dfsg-5+lenny2_mipsel.deb http://security.debian.org/pool/updates/main/libx/libxml2/libxml2-dev_2.6.32.dfsg-5+lenny2_mipsel.deb http://security.debian.org/pool/updates/main/libx/libxml2/libxml2-utils_2.6.32.dfsg-5+lenny2_mipsel.deb http://security.debian.org/pool/updates/main/libx/libxml2/python-libxml2_2.6.32.dfsg-5+lenny2_mipsel.deb powerpc architecture (PowerPC) http://security.debian.org/pool/updates/main/libx/libxml2/libxml2-dbg_2.6.32.dfsg-5+lenny2_powerpc.deb http://security.debian.org/pool/updates/main/libx/libxml2/libxml2-utils_2.6.32.dfsg-5+lenny2_powerpc.deb http://security.debian.org/pool/updates/main/libx/libxml2/libxml2_2.6.32.dfsg-5+lenny2_powerpc.deb http://security.debian.org/pool/updates/main/libx/libxml2/python-libxml2_2.6.32.dfsg-5+lenny2_powerpc.deb http://security.debian.org/pool/updates/main/libx/libxml2/libxml2-dev_2.6.32.dfsg-5+lenny2_powerpc.deb s390 architecture (IBM S/390) http://security.debian.org/pool/updates/main/libx/libxml2/libxml2-utils_2.6.32.dfsg-5+lenny2_s390.deb http://security.debian.org/pool/updates/main/libx/libxml2/python-libxml2_2.6.32.dfsg-5+lenny2_s390.deb http://security.debian.org/pool/updates/main/libx/libxml2/libxml2_2.6.32.dfsg-5+lenny2_s390.deb http://security.debian.org/pool/updates/main/libx/libxml2/libxml2-dev_2.6.32.dfsg-5+lenny2_s390.deb http://security.debian.org/pool/updates/main/libx/libxml2/libxml2-dbg_2.6.32.dfsg-5+lenny2_s390.deb sparc architecture (Sun SPARC/UltraSPARC) http://security.debian.org/pool/updates/main/libx/libxml2/libxml2-utils_2.6.32.dfsg-5+lenny2_sparc.deb http://security.debian.org/pool/updates/main/libx/libxml2/libxml2-dbg_2.6.32.dfsg-5+lenny2_sparc.deb http://security.debian.org/pool/updates/main/libx/libxml2/python-libxml2_2.6.32.dfsg-5+lenny2_sparc.deb http://security.debian.org/pool/updates/main/libx/libxml2/libxml2-dev_2.6.32.dfsg-5+lenny2_sparc.deb http://security.debian.org/pool/updates/main/libx/libxml2/libxml2_2.6.32.dfsg-5+lenny2_sparc.deb

Red Hat (RHSA-2011:1749-1)
Red Hat Enterprise Linux Desktop (v. 6)
Red Hat Enterprise Linux Desktop Optional (v. 6)
Red Hat Enterprise Linux HPC Node (v. 6)
Red Hat Enterprise Linux HPC Node Optional (v. 6)
Red Hat Enterprise Linux Server (v. 6)
Red Hat Enterprise Linux Server Optional (v. 6)
Red Hat Enterprise Linux Workstation (v. 6)
Red Hat Enterprise Linux Workstation Optional (v. 6)
https://rhn.redhat.com/

Identificadores estándar

Propiedad Valor
CVE CVE-2010-4008
BID

Recursos adicionales

Debian Security Advisory (DSA-2128-1)
http://lists.debian.org/debian-security-announce/2010/msg00179.html

Red Hat Security Advisory (RHSA-2011:1749-03)
https://rhn.redhat.com/errata/RHSA-2011:1749-03.html

Histórico de versiones

Versión Comentario Fecha
1.0 Aviso emitido 2010-12-02
1.1 Aviso emitido por Red Hat (RHSA-2011:1749-03) 2011-12-20

Miembros de

Ministerio de Defensa
CNI
CCN
CCN-CERT