int(1952)

Boletines de Vulnerabilidades


Denegación de servicio en Apache 2

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 Apache 2 < 2.0.55

Descripción

Se ha descubierto una vulnerabilidad en Apache 2 versiones anteriores a 2.0.55. La vulnerabilidad reside en un error de manejo de memoria en "worker.c".

La explotación de esta vulnerabilidad podría permitir a un atacante remoto causar una denegación de servicio mediante múltiples conexiones abortadas.

Solución



Actualización de software

Apache
Apache httpd 2.0.55
http://httpd.apache.org/download.cgi

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

Mandriva Linux

Mandrakelinux 10.1
x86
ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/10.1/RPMS/apache2-2.0.50-7.5.101mdk.i586.rpm
ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/10.1/RPMS/apache2-common-2.0.50-7.5.101mdk.i586.rpm
ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/10.1/RPMS/apache2-devel-2.0.50-7.5.101mdk.i586.rpm
ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/10.1/RPMS/apache2-manual-2.0.50-7.5.101mdk.i586.rpm
ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/10.1/RPMS/apache2-mod_cache-2.0.50-7.5.101mdk.i586.rpm
ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/10.1/RPMS/apache2-mod_dav-2.0.50-7.5.101mdk.i586.rpm
ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/10.1/RPMS/apache2-mod_deflate-2.0.50-7.5.101mdk.i586.rpm
ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/10.1/RPMS/apache2-mod_disk_cache-2.0.50-7.5.101mdk.i586.rpm
ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/10.1/RPMS/apache2-mod_file_cache-2.0.50-7.5.101mdk.i586.rpm
ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/10.1/RPMS/apache2-mod_ldap-2.0.50-7.5.101mdk.i586.rpm
ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/10.1/RPMS/apache2-mod_mem_cache-2.0.50-7.5.101mdk.i586.rpm
ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/10.1/RPMS/apache2-mod_proxy-2.0.50-7.5.101mdk.i586.rpm
ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/10.1/RPMS/apache2-modules-2.0.50-7.5.101mdk.i586.rpm
ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/10.1/RPMS/apache2-source-2.0.50-7.5.101mdk.i586.rpm
ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/10.1/RPMS/apache2-worker-2.0.50-7.5.101mdk.i586.rpm
ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/10.1/SRPMS/apache2-2.0.50-7.5.101mdk.src.rpm
X86_64
ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/x86_64/10.1/RPMS/apache2-2.0.50-7.5.101mdk.x86_64.rpm
ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/x86_64/10.1/RPMS/apache2-common-2.0.50-7.5.101mdk.x86_64.rpm
ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/x86_64/10.1/RPMS/apache2-devel-2.0.50-7.5.101mdk.x86_64.rpm
ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/x86_64/10.1/RPMS/apache2-manual-2.0.50-7.5.101mdk.x86_64.rpm
ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/x86_64/10.1/RPMS/apache2-mod_cache-2.0.50-7.5.101mdk.x86_64.rpm
ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/x86_64/10.1/RPMS/apache2-mod_dav-2.0.50-7.5.101mdk.x86_64.rpm
ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/x86_64/10.1/RPMS/apache2-mod_deflate-2.0.50-7.5.101mdk.x86_64.rpm
ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/x86_64/10.1/RPMS/apache2-mod_disk_cache-2.0.50-7.5.101mdk.x86_64.rpm
ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/x86_64/10.1/RPMS/apache2-mod_file_cache-2.0.50-7.5.101mdk.x86_64.rpm
ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/x86_64/10.1/RPMS/apache2-mod_ldap-2.0.50-7.5.101mdk.x86_64.rpm
ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/x86_64/10.1/RPMS/apache2-mod_mem_cache-2.0.50-7.5.101mdk.x86_64.rpm
ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/x86_64/10.1/RPMS/apache2-mod_proxy-2.0.50-7.5.101mdk.x86_64.rpm
ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/x86_64/10.1/RPMS/apache2-modules-2.0.50-7.5.101mdk.x86_64.rpm
ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/x86_64/10.1/RPMS/apache2-source-2.0.50-7.5.101mdk.x86_64.rpm
ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/x86_64/10.1/RPMS/apache2-worker-2.0.50-7.5.101mdk.x86_64.rpm
ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/x86_64/10.1/SRPMS/apache2-2.0.50-7.5.101mdk.src.rpm

Mandrivalinux LE2005
x86
ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/10.2/RPMS/apache2-2.0.53-9.3.102mdk.i586.rpm
ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/10.2/RPMS/apache2-common-2.0.53-9.3.102mdk.i586.rpm
ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/10.2/RPMS/apache2-devel-2.0.53-9.3.102mdk.i586.rpm
ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/10.2/RPMS/apache2-manual-2.0.53-9.3.102mdk.i586.rpm
ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/10.2/RPMS/apache2-mod_cache-2.0.53-9.3.102mdk.i586.rpm
ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/10.2/RPMS/apache2-mod_dav-2.0.53-9.3.102mdk.i586.rpm
ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/10.2/RPMS/apache2-mod_deflate-2.0.53-9.3.102mdk.i586.rpm
ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/10.2/RPMS/apache2-mod_disk_cache-2.0.53-9.3.102mdk.i586.rpm
ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/10.2/RPMS/apache2-mod_file_cache-2.0.53-9.3.102mdk.i586.rpm
ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/10.2/RPMS/apache2-mod_ldap-2.0.53-9.3.102mdk.i586.rpm
ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/10.2/RPMS/apache2-mod_mem_cache-2.0.53-9.3.102mdk.i586.rpm
ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/10.2/RPMS/apache2-mod_proxy-2.0.53-9.3.102mdk.i586.rpm
ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/10.2/RPMS/apache2-modules-2.0.53-9.3.102mdk.i586.rpm
ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/10.2/RPMS/apache2-peruser-2.0.53-9.3.102mdk.i586.rpm
ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/10.2/RPMS/apache2-source-2.0.53-9.3.102mdk.i586.rpm
ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/10.2/RPMS/apache2-worker-2.0.53-9.3.102mdk.i586.rpm
ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/10.2/SRPMS/apache2-2.0.53-9.3.102mdk.src.rpm
X86_64
ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/x86_64/10.2/RPMS/apache2-2.0.53-9.3.102mdk.x86_64.rpm
ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/x86_64/10.2/RPMS/apache2-common-2.0.53-9.3.102mdk.x86_64.rpm
ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/x86_64/10.2/RPMS/apache2-devel-2.0.53-9.3.102mdk.x86_64.rpm
ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/x86_64/10.2/RPMS/apache2-manual-2.0.53-9.3.102mdk.x86_64.rpm
ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/x86_64/10.2/RPMS/apache2-mod_cache-2.0.53-9.3.102mdk.x86_64.rpm
ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/x86_64/10.2/RPMS/apache2-mod_dav-2.0.53-9.3.102mdk.x86_64.rpm
ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/x86_64/10.2/RPMS/apache2-mod_deflate-2.0.53-9.3.102mdk.x86_64.rpm
ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/x86_64/10.2/RPMS/apache2-mod_disk_cache-2.0.53-9.3.102mdk.x86_64.rpm
ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/x86_64/10.2/RPMS/apache2-mod_file_cache-2.0.53-9.3.102mdk.x86_64.rpm
ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/x86_64/10.2/RPMS/apache2-mod_ldap-2.0.53-9.3.102mdk.x86_64.rpm
ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/x86_64/10.2/RPMS/apache2-mod_mem_cache-2.0.53-9.3.102mdk.x86_64.rpm
ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/x86_64/10.2/RPMS/apache2-mod_proxy-2.0.53-9.3.102mdk.x86_64.rpm
ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/x86_64/10.2/RPMS/apache2-modules-2.0.53-9.3.102mdk.x86_64.rpm
ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/x86_64/10.2/RPMS/apache2-peruser-2.0.53-9.3.102mdk.x86_64.rpm
ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/x86_64/10.2/RPMS/apache2-source-2.0.53-9.3.102mdk.x86_64.rpm
ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/x86_64/10.2/RPMS/apache2-worker-2.0.53-9.3.102mdk.x86_64.rpm
ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/x86_64/10.2/SRPMS/apache2-2.0.53-9.3.102mdk.src.rpm

Mandrivalinux 2006
x86
ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/2006.0/RPMS/apache-base-2.0.54-13.1.20060mdk.i586.rpm
ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/2006.0/RPMS/apache-devel-2.0.54-13.1.20060mdk.i586.rpm
ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/2006.0/RPMS/apache-mod_cache-2.0.54-13.1.20060mdk.i586.rpm
ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/2006.0/RPMS/apache-mod_dav-2.0.54-13.1.20060mdk.i586.rpm
ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/2006.0/RPMS/apache-mod_deflate-2.0.54-13.1.20060mdk.i586.rpm
ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/2006.0/RPMS/apache-mod_disk_cache-2.0.54-13.1.20060mdk.i586.rpm
ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/2006.0/RPMS/apache-mod_file_cache-2.0.54-13.1.20060mdk.i586.rpm
ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/2006.0/RPMS/apache-mod_ldap-2.0.54-13.1.20060mdk.i586.rpm
ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/2006.0/RPMS/apache-mod_mem_cache-2.0.54-13.1.20060mdk.i586.rpm
ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/2006.0/RPMS/apache-mod_proxy-2.0.54-13.1.20060mdk.i586.rpm
ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/2006.0/RPMS/apache-modules-2.0.54-13.1.20060mdk.i586.rpm
ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/2006.0/RPMS/apache-mod_userdir-2.0.54-13.1.20060mdk.i586.rpm
ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/2006.0/RPMS/apache-mpm-peruser-2.0.54-13.1.20060mdk.i586.rpm
ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/2006.0/RPMS/apache-mpm-prefork-2.0.54-13.1.20060mdk.i586.rpm
ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/2006.0/RPMS/apache-mpm-worker-2.0.54-13.1.20060mdk.i586.rpm
ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/2006.0/RPMS/apache-source-2.0.54-13.1.20060mdk.i586.rpm
ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/2006.0/SRPMS/apache-2.0.54-13.1.20060mdk.src.rpm
X86_64
ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/x86_64/2006.0/RPMS/apache-base-2.0.54-13.1.20060mdk.x86_64.rpm
ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/x86_64/2006.0/RPMS/apache-devel-2.0.54-13.1.20060mdk.x86_64.rpm
ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/x86_64/2006.0/RPMS/apache-mod_cache-2.0.54-13.1.20060mdk.x86_64.rpm
ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/x86_64/2006.0/RPMS/apache-mod_dav-2.0.54-13.1.20060mdk.x86_64.rpm
ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/x86_64/2006.0/RPMS/apache-mod_deflate-2.0.54-13.1.20060mdk.x86_64.rpm
ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/x86_64/2006.0/RPMS/apache-mod_disk_cache-2.0.54-13.1.20060mdk.x86_64.rpm
ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/x86_64/2006.0/RPMS/apache-mod_file_cache-2.0.54-13.1.20060mdk.x86_64.rpm
ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/x86_64/2006.0/RPMS/apache-mod_ldap-2.0.54-13.1.20060mdk.x86_64.rpm
ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/x86_64/2006.0/RPMS/apache-mod_mem_cache-2.0.54-13.1.20060mdk.x86_64.rpm
ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/x86_64/2006.0/RPMS/apache-mod_proxy-2.0.54-13.1.20060mdk.x86_64.rpm
ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/x86_64/2006.0/RPMS/apache-modules-2.0.54-13.1.20060mdk.x86_64.rpm
ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/x86_64/2006.0/RPMS/apache-mod_userdir-2.0.54-13.1.20060mdk.x86_64.rpm
ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/x86_64/2006.0/RPMS/apache-mpm-peruser-2.0.54-13.1.20060mdk.x86_64.rpm
ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/x86_64/2006.0/RPMS/apache-mpm-prefork-2.0.54-13.1.20060mdk.x86_64.rpm
ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/x86_64/2006.0/RPMS/apache-mpm-worker-2.0.54-13.1.20060mdk.x86_64.rpm
ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/x86_64/2006.0/RPMS/apache-source-2.0.54-13.1.20060mdk.x86_64.rpm
ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/x86_64/2006.0/SRPMS/apache-2.0.54-13.1.20060mdk.src.rpm

Red Hat (httpd)
Red Hat Desktop (v. 3)
Red Hat Desktop (v. 4)
Red Hat Enterprise Linux AS (v. 3)
Red Hat Enterprise Linux AS (v. 4)
Red Hat Enterprise Linux ES (v. 3)
Red Hat Enterprise Linux ES (v. 4)
Red Hat Enterprise Linux WS (v. 3)
Red Hat Enterprise Linux WS (v. 4)
https://rhn.redhat.com/

SGI
Advanced Linux Environment 3 / RPM / Patch 10258
ftp://oss.sgi.com/projects/sgi_propack/download/3/updates/RPMS
Advanced Linux Environment 3 / SRPM / Patch 10258
ftp://oss.sgi.com/projects/sgi_propack/download/3/updates/SRPMS

Identificadores estándar

Propiedad Valor
CVE CVE-2005-2970
BID

Recursos adicionales

Overview of security vulnerabilities in Apache httpd 2.0
http://httpd.apache.org/security/vulnerabilities_20.html

SUSE Security Advisory (SUSE-SR:2005:028)
http://www.novell.com/linux/security/advisories/2005_28_sr.html

Mandriva Security Advisory MDKSA-2005:233
http://wwwnew.mandriva.com/security/advisories?name=MDKSA-2005:233

Red Hat Security Advisory RHSA-2006:0159-8
https://rhn.redhat.com/errata/RHSA-2006-0159.html

SGI Security Advisory (20060101-01-U)
ftp://patches.sgi.com/support/free/security/advisories/20060101-01-U.asc

Histórico de versiones

Versión Comentario Fecha
1.0 Aviso emitido 2005-11-07
1.1 Aviso emitido por Suse (SUSE-SR:2005:028) 2005-12-13
1.2 Aviso emitido por Mandriva (MDKSA-2005:233) 2005-12-20
1.3 Aviso emitido por Red Hat (RHSA-2006:0159-8) 2006-01-06
1.4 Aviso emitido por SGI (20060101-01-U) 2006-01-19

Miembros de

Ministerio de Defensa
CNI
CCN
CCN-CERT