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Boletines de Vulnerabilidades


Denegación de servicio en SpamAssassin

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 exotico

Información sobre el sistema

Propiedad Valor
Fabricante afectado GNU/Linux
Software afectado SpamAssassin

Descripción

Se ha descubierto una vulnerabilidad en la herramienta antispam SpamAssassin. La vulnerabilidad reside en el manejo de la cabecera Content-Type en mensajes de correo electrónico MIME.

La explotación de esta vulnerabilidad podría permitir a un atacante remoto provocar una situación de denegación de servicio del sistema por consumo de CPU mediante el envío de un mensaje de correo especialmente diseñado.

Solución



Actualización de software

SUSE Linux

SUSE Linux 9.3
x86
ftp://ftp.suse.com/pub/suse/i386/update/9.3/rpm/i586/perl-spamassassin-3.0.4-1.1.i586.rpm
ftp://ftp.suse.com/pub/suse/i386/update/9.3/rpm/i586/spamassassin-3.0.4-1.1.i586.rpm
x86-64
ftp://ftp.suse.com/pub/suse/i386/update/9.3/rpm/x86_64/perl-spamassassin-3.0.4-1.1.x86_64.rpm
ftp://ftp.suse.com/pub/suse/i386/update/9.3/rpm/x86_64/spamassassin-3.0.4-1.1.x86_64.rpm
ftp://ftp.suse.com/pub/suse/i386/update/9.3/rpm/src/spamassassin-3.0.4-1.1.src.rpm

SUSE Linux 9.2
x86
ftp://ftp.suse.com/pub/suse/i386/update/9.2/rpm/i586/perl-spamassassin-3.0.4-1.1.i586.rpm
ftp://ftp.suse.com/pub/suse/i386/update/9.2/rpm/i586/spamassassin-3.0.4-1.1.i586.rpm
x86-64
ftp://ftp.suse.com/pub/suse/i386/update/9.2/rpm/x86_64/perl-spamassassin-3.0.4-1.1.x86_64.rpm
ftp://ftp.suse.com/pub/suse/i386/update/9.2/rpm/x86_64/spamassassin-3.0.4-1.1.x86_64.rpm
ftp://ftp.suse.com/pub/suse/i386/update/9.2/rpm/src/spamassassin-3.0.4-1.1.src.rpm

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

Mandriva Linux

Mandrakelinux 10.1
x86
ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/10.1/RPMS/perl-Mail-SpamAssassin-3.0.4-0.1.101mdk.i586.rpm
ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/10.1/RPMS/spamassassin-3.0.4-0.1.101mdk.i586.rpm
ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/10.1/RPMS/spamassassin-spamc-3.0.4-0.1.101mdk.i586.rpm
ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/10.1/RPMS/spamassassin-spamd-3.0.4-0.1.101mdk.i586.rpm
ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/10.1/RPMS/spamassassin-tools-3.0.4-0.1.101mdk.i586.rpm
ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/10.1/SRPMS/spamassassin-3.0.4-0.1.101mdk.src.rpm
X86_64
ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/x86_64/10.1/RPMS/perl-Mail-SpamAssassin-3.0.4-0.1.101mdk.x86_64.rpm
ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/x86_64/10.1/RPMS/spamassassin-3.0.4-0.1.101mdk.x86_64.rpm
ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/x86_64/10.1/RPMS/spamassassin-spamc-3.0.4-0.1.101mdk.x86_64.rpm
ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/x86_64/10.1/RPMS/spamassassin-spamd-3.0.4-0.1.101mdk.x86_64.rpm
ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/x86_64/10.1/RPMS/spamassassin-tools-3.0.4-0.1.101mdk.x86_64.rpm
ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/x86_64/10.1/SRPMS/spamassassin-3.0.4-0.1.101mdk.src.rpm

Mandrivalinux LE2005
x86
ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/10.2/RPMS/perl-Mail-SpamAssassin-3.0.4-0.1.102mdk.i586.rpm
ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/10.2/RPMS/spamassassin-3.0.4-0.1.102mdk.i586.rpm
ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/10.2/RPMS/spamassassin-spamc-3.0.4-0.1.102mdk.i586.rpm
ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/10.2/RPMS/spamassassin-spamd-3.0.4-0.1.102mdk.i586.rpm
ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/10.2/RPMS/spamassassin-tools-3.0.4-0.1.102mdk.i586.rpm
ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/10.2/SRPMS/spamassassin-3.0.4-0.1.102mdk.src.rpm
X86_64
ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/x86_64/10.2/RPMS/perl-Mail-SpamAssassin-3.0.4-0.1.102mdk.x86_64.rpm
ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/x86_64/10.2/RPMS/spamassassin-3.0.4-0.1.102mdk.x86_64.rpm
ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/x86_64/10.2/RPMS/spamassassin-spamc-3.0.4-0.1.102mdk.x86_64.rpm
ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/x86_64/10.2/RPMS/spamassassin-spamd-3.0.4-0.1.102mdk.x86_64.rpm
ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/x86_64/10.2/RPMS/spamassassin-tools-3.0.4-0.1.102mdk.x86_64.rpm
ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/x86_64/10.2/SRPMS/spamassassin-3.0.4-0.1.102mdk.src.rpm

Debian Linux

Debian Linux 3.1
Source
http://security.debian.org/pool/updates/main/s/spamassassin/spamassassin_3.0.3-2.diff.gz
http://security.debian.org/pool/updates/main/s/spamassassin/spamassassin_3.0.3.orig.tar.gz
http://security.debian.org/pool/updates/main/s/spamassassin/spamassassin_3.0.3-2.dsc
Architecture independent
http://security.debian.org/pool/updates/main/s/spamassassin/spamassassin_3.0.3-2_all.deb
alpha architecture (DEC Alpha)
http://security.debian.org/pool/updates/main/s/spamassassin/spamc_3.0.3-2_alpha.deb
i386 architecture (Intel ia32)
http://security.debian.org/pool/updates/main/s/spamassassin/spamc_3.0.3-2_i386.deb
ia64 architecture (Intel ia64)
http://security.debian.org/pool/updates/main/s/spamassassin/spamc_3.0.3-2_ia64.deb
m68k architecture (Motorola Mc680x0)
http://security.debian.org/pool/updates/main/s/spamassassin/spamc_3.0.3-2_m68k.deb
mips architecture (MIPS (Big Endian))
http://security.debian.org/pool/updates/main/s/spamassassin/spamc_3.0.3-2_mips.deb
mipsel architecture (MIPS (Little Endian))
http://security.debian.org/pool/updates/main/s/spamassassin/spamc_3.0.3-2_mipsel.deb
powerpc architecture (PowerPC)
http://security.debian.org/pool/updates/main/s/spamassassin/spamc_3.0.3-2_powerpc.deb
s390 architecture (IBM S/390)
http://security.debian.org/pool/updates/main/s/spamassassin/spamc_3.0.3-2_s390.deb
sparc architecture (Sun SPARC/UltraSPARC)
http://security.debian.org/pool/updates/main/s/spamassassin/spamc_3.0.3-2_sparc.deb
arm architecture (ARM)
http://security.debian.org/pool/updates/main/s/spamassassin/spamc_3.0.3-2_arm.deb
hppa architecture (HP PA RISC)
http://security.debian.org/pool/updates/main/s/spamassassin/spamc_3.0.3-2_hppa.deb

Debian

Debian Linux 3.1
AMD64
http://security.debian.org/pool/updates/main/s/spamassassin/spamc_3.0.3-2_amd64.deb

Identificadores estándar

Propiedad Valor
CVE CAN-2005-1266
BID NULL

Recursos adicionales

SUSE Security Announcement SUSE-SA:2005:033
http://www.novell.com/linux/security/advisories/2005_33_spamassassin.html

Red Hat Security Advisory RHSA-2005:498-10
https://rhn.redhat.com/errata/RHSA-2005-498.html

Mandriva Security Advisories MDKSA-2005:106
http://www.mandriva.com/security/advisories?name=MDKSA-2005:106

Debian Security Advisory DSA 736-1
http://lists.debian.org/debian-security-announce/debian-security-announce-2005/msg00119.html

Debian Security Advisory DSA 736-2
http://lists.debian.org/debian-security-announce/debian-security-announce-2005/msg00128.html

Debian Security Advisory DSA 773-1
http://lists.debian.org/debian-security-announce/debian-security-announce-2005/msg00160.html

Histórico de versiones

Versión Comentario Fecha
1.0 Aviso emitido 2005-06-23
1.1 Aviso emitido por Red Hat (RHSA-2005:498-10) 2005-06-27
1.2 Aviso emitido por Mandriva (MDKSA-2005:106) 2005-06-29
1.3 Aviso emitido por Debian (DSA 736-1) 2005-07-01
1.4 Aviso actualizado por Debian (DSA 736-2) 2005-07-08
1.5 Aviso emitido por Debian (DSA 773-1) 2005-08-25
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