int(1326)

Boletines de Vulnerabilidades


Desbordamiento de búfer en Squid

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
Fabricant afectat GNU/Linux
Software afectado Squid <=2.5.STABLE7

Descripción

Se ha descubierto una vulnerabilidad de desbordamiento de búfer en la versión 2.5.STABLE7 y anteriores de Squid. La vulnerabilidad reside en el uso inseguro de la función recvfrom() en la implementación del protocolo WCCP.

La explotación de esta vulnerabilidad podría permitir a un atacante remoto provocar una situación de denegación de servicio de squid siempre que este configurado para utilizar el protocolo WCCP.

Solución



Actualización de software

Squid
Squid 2.5.STABLE7- Parche
http://www.squid-cache.org/Versions/v2/2.5/bugs/squid-2.5.STABLE7-wccp_buffer_overflow.patch

Debian Linux

Debian Linux 3.0
Source
http://security.debian.org/pool/updates/main/s/squid/squid_2.4.6-2woody6.dsc
http://security.debian.org/pool/updates/main/s/squid/squid_2.4.6-2woody6.diff.gz
http://security.debian.org/pool/updates/main/s/squid/squid_2.4.6.orig.tar.gz
Alpha
http://security.debian.org/pool/updates/main/s/squid/squid_2.4.6-2woody6_alpha.deb
http://security.debian.org/pool/updates/main/s/squid/squid-cgi_2.4.6-2woody6_alpha.deb
http://security.debian.org/pool/updates/main/s/squid/squidclient_2.4.6-2woody6_alpha.deb
ARM
http://security.debian.org/pool/updates/main/s/squid/squid_2.4.6-2woody6_arm.deb
http://security.debian.org/pool/updates/main/s/squid/squid-cgi_2.4.6-2woody6_arm.deb
http://security.debian.org/pool/updates/main/s/squid/squidclient_2.4.6-2woody6_arm.deb
Intel IA-32
http://security.debian.org/pool/updates/main/s/squid/squid_2.4.6-2woody6_i386.deb
http://security.debian.org/pool/updates/main/s/squid/squid-cgi_2.4.6-2woody6_i386.deb
http://security.debian.org/pool/updates/main/s/squid/squidclient_2.4.6-2woody6_i386.deb
Intel IA-64
http://security.debian.org/pool/updates/main/s/squid/squid_2.4.6-2woody6_ia64.deb
http://security.debian.org/pool/updates/main/s/squid/squid-cgi_2.4.6-2woody6_ia64.deb
http://security.debian.org/pool/updates/main/s/squid/squidclient_2.4.6-2woody6_ia64.deb
HP Precision
http://security.debian.org/pool/updates/main/s/squid/squid_2.4.6-2woody6_hppa.deb
http://security.debian.org/pool/updates/main/s/squid/squid-cgi_2.4.6-2woody6_hppa.deb
http://security.debian.org/pool/updates/main/s/squid/squidclient_2.4.6-2woody6_hppa.deb
Motorola 680x0
http://security.debian.org/pool/updates/main/s/squid/squid_2.4.6-2woody6_m68k.deb
http://security.debian.org/pool/updates/main/s/squid/squid-cgi_2.4.6-2woody6_m68k.deb
http://security.debian.org/pool/updates/main/s/squid/squidclient_2.4.6-2woody6_m68k.deb
Big endian MIPS
http://security.debian.org/pool/updates/main/s/squid/squid_2.4.6-2woody6_mips.deb
http://security.debian.org/pool/updates/main/s/squid/squid-cgi_2.4.6-2woody6_mips.deb
http://security.debian.org/pool/updates/main/s/squid/squidclient_2.4.6-2woody6_mips.deb
Little endian MIPS
http://security.debian.org/pool/updates/main/s/squid/squid_2.4.6-2woody6_mipsel.deb
http://security.debian.org/pool/updates/main/s/squid/squid-cgi_2.4.6-2woody6_mipsel.deb
http://security.debian.org/pool/updates/main/s/squid/squidclient_2.4.6-2woody6_mipsel.deb
PowerPC
http://security.debian.org/pool/updates/main/s/squid/squid_2.4.6-2woody6_powerpc.deb
http://security.debian.org/pool/updates/main/s/squid/squid-cgi_2.4.6-2woody6_powerpc.deb
http://security.debian.org/pool/updates/main/s/squid/squidclient_2.4.6-2woody6_powerpc.deb
IBM S/390
http://security.debian.org/pool/updates/main/s/squid/squid_2.4.6-2woody6_s390.deb
http://security.debian.org/pool/updates/main/s/squid/squid-cgi_2.4.6-2woody6_s390.deb
http://security.debian.org/pool/updates/main/s/squid/squidclient_2.4.6-2woody6_s390.deb
Sun Sparc
http://security.debian.org/pool/updates/main/s/squid/squid_2.4.6-2woody6_sparc.deb
http://security.debian.org/pool/updates/main/s/squid/squid-cgi_2.4.6-2woody6_sparc.deb
http://security.debian.org/pool/updates/main/s/squid/squidclient_2.4.6-2woody6_sparc.deb

Mandrake Linux

Mandrakelinux 9.2
x86
ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/9.2/RPMS/squid-2.5.STABLE3-3.6.92mdk.i586.rpm
ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/9.2/SRPMS/squid-2.5.STABLE3-3.6.92mdk.src.rpm
AMD64
ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/amd64/9.2/RPMS/squid-2.5.STABLE3-3.6.92mdk.amd64.rpm
ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/amd64/9.2/SRPMS/squid-2.5.STABLE3-3.6.92mdk.src.rpm

Mandrakelinux 10.0
x86
ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/10.0/RPMS/squid-2.5.STABLE4-2.4.100mdk.i586.rpm
ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/10.0/SRPMS/squid-2.5.STABLE4-2.4.100mdk.src.rpm
AMD64
ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/amd64/10.0/RPMS/squid-2.5.STABLE4-2.4.100mdk.amd64.rpm
ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/amd64/10.0/SRPMS/squid-2.5.STABLE4-2.4.100mdk.src.rpm

Mandrakelinux 10.1
x86
ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/10.1/RPMS/squid-2.5.STABLE6-2.3.101mdk.i586.rpm
ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/10.1/SRPMS/squid-2.5.STABLE6-2.3.101mdk.src.rpm
X86_64
ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/x86_64/10.1/RPMS/squid-2.5.STABLE6-2.3.101mdk.x86_64.rpm
ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/x86_64/10.1/SRPMS/squid-2.5.STABLE6-2.3.101mdk.src.rpm

Corporate Server 2.1
x86
ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/corporate/2.1/RPMS/squid-2.4.STABLE7-2.4.C21mdk.i586.rpm
ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/corporate/2.1/SRPMS/squid-2.4.STABLE7-2.4.C21mdk.src.rpm
X86_64
ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/x86_64/corporate/2.1/RPMS/squid-2.4.STABLE7-2.4.C21mdk.x86_64.rpm
ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/x86_64/corporate/2.1/SRPMS/squid-2.4.STABLE7-2.4.C21mdk.src.rpm

Corporate Server 3.0
x86
ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/corporate/3.0/RPMS/squid-2.5.STABLE4-2.4.C30mdk.i586.rpm
ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/corporate/3.0/SRPMS/squid-2.5.STABLE4-2.4.C30mdk.src.rpm
X86_64
ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/x86_64/corporate/3.0/RPMS/squid-2.5.STABLE4-2.4.C30mdk.x86_64.rpm
ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/x86_64/corporate/3.0/SRPMS/squid-2.5.STABLE4-2.4.C30mdk.src.rpm

SUSE Linux

SUSE Linux 9.2
x86
ftp://ftp.suse.com/pub/suse/i386/update/9.2/rpm/i586/squid-2.5.STABLE6-6.6.i586.rpm
ftp://ftp.suse.com/pub/suse/i386/update/9.2/rpm/i586/squid-2.5.STABLE6-6.6.i586.patch.rpm
ftp://ftp.suse.com/pub/suse/i386/update/9.2/rpm/src/squid-2.5.STABLE6-6.6.src.rpm
x86_64
ftp://ftp.suse.com/pub/suse/x86_64/update/9.2/rpm/x86_64/squid-2.5.STABLE6-6.6.x86_64.rpm
ftp://ftp.suse.com/pub/suse/x86_64/update/9.2/rpm/x86_64/squid-2.5.STABLE6-6.6.x86_64.patch.rpm
ftp://ftp.suse.com/pub/suse/x86_64/update/9.2/rpm/src/squid-2.5.STABLE6-6.6.src.rpm

SUSE Linux 9.1
x86
ftp://ftp.suse.com/pub/suse/i386/update/9.1/rpm/i586/squid-2.5.STABLE5-42.27.i586.rpm
ftp://ftp.suse.com/pub/suse/i386/update/9.1/rpm/i586/squid-2.5.STABLE5-42.27.i586.patch.rpm
ftp://ftp.suse.com/pub/suse/i386/update/9.1/rpm/src/squid-2.5.STABLE5-42.27.src.rpm
x86_64
ftp://ftp.suse.com/pub/suse/x86_64/update/9.1/rpm/x86_64/squid-2.5.STABLE5-42.27.x86_64.rpm
ftp://ftp.suse.com/pub/suse/x86_64/update/9.1/rpm/x86_64/squid-2.5.STABLE5-42.27.x86_64.patch.rpm

SUSE Linux 9.0
x86
ftp://ftp.suse.com/pub/suse/i386/update/9.0/rpm/i586/squid-2.5.STABLE3-118.i586.rpm
ftp://ftp.suse.com/pub/suse/i386/update/9.0/rpm/i586/squid-2.5.STABLE3-118.i586.patch.rpm
ftp://ftp.suse.com/pub/suse/i386/update/9.0/rpm/src/squid-2.5.STABLE3-118.src.rpm
x86_64
ftp://ftp.suse.com/pub/suse/x86_64/update/9.0/rpm/x86_64/squid-2.5.STABLE3-118.x86_64.rpm
ftp://ftp.suse.com/pub/suse/x86_64/update/9.0/rpm/x86_64/squid-2.5.STABLE3-118.x86_64.patch.rpm
ftp://ftp.suse.com/pub/suse/x86_64/update/9.0/rpm/src/squid-2.5.STABLE3-118.src.rpm

SUSE Linux 8.2
x86
ftp://ftp.suse.com/pub/suse/i386/update/8.2/rpm/i586/squid-2.5.STABLE1-106.i586.rpm
ftp://ftp.suse.com/pub/suse/i386/update/8.2/rpm/i586/squid-2.5.STABLE1-106.i586.patch.rpm
ftp://ftp.suse.com/pub/suse/i386/update/8.2/rpm/src/squid-2.5.STABLE1-106.src.rpm

SUSE Linux 8.1
x86
ftp://ftp.suse.com/pub/suse/i386/update/8.1/rpm/i586/squid-2.4.STABLE7-288.i586.rpm
ftp://ftp.suse.com/pub/suse/i386/update/8.1/rpm/i586/squid-2.4.STABLE7-288.i586.patch.rpm
ftp://ftp.suse.com/pub/suse/i386/update/8.1/rpm/src/squid-2.4.STABLE7-288.src.rpm

Red Hat Linux

Red Hat Desktop (v. 3)
SRPMS
squid-2.5.STABLE3-6.3E.7.src.rpm
IA-32
squid-2.5.STABLE3-6.3E.7.i386.rpm
x86_64
squid-2.5.STABLE3-6.3E.7.x86_64.rpm
https://rhn.redhat.com/

Red Hat Enterprise Linux AS (v. 2.1)
SRPMS
squid-2.4.STABLE7-1.21as.4.src.rpm
IA-32
squid-2.4.STABLE7-1.21as.4.i386.rpm
IA-64
squid-2.4.STABLE7-1.21as.4.ia64.rpm
https://rhn.redhat.com/

Red Hat Enterprise Linux AS (v. 3)
SRPMS
squid-2.5.STABLE3-6.3E.7.src.rpm
IA-32
squid-2.5.STABLE3-6.3E.7.i386.rpm
IA-64
squid-2.5.STABLE3-6.3E.7.ia64.rpm
PPC
squid-2.5.STABLE3-6.3E.7.ppc.rpm
s390
squid-2.5.STABLE3-6.3E.7.s390.rpm
s390x
squid-2.5.STABLE3-6.3E.7.s390x.rpm
x86_64
squid-2.5.STABLE3-6.3E.7.x86_64.rpm
https://rhn.redhat.com/

Red Hat Enterprise Linux ES (v. 2.1)
SRPMS
squid-2.4.STABLE7-1.21as.4.src.rpm
IA-32
squid-2.4.STABLE7-1.21as.4.i386.rpm
https://rhn.redhat.com/

Red Hat Enterprise Linux ES (v. 3)
SRPMS
squid-2.5.STABLE3-6.3E.7.src.rpm
IA-32
squid-2.5.STABLE3-6.3E.7.i386.rpm
IA-64
squid-2.5.STABLE3-6.3E.7.ia64.rpm
x86_64
squid-2.5.STABLE3-6.3E.7.x86_64.rpm
https://rhn.redhat.com/

Red Hat Enterprise Linux WS (v. 3)
SRPMS
squid-2.5.STABLE3-6.3E.7.src.rpm
IA-32
squid-2.5.STABLE3-6.3E.7.i386.rpm
IA-64
squid-2.5.STABLE3-6.3E.7.ia64.rpm
x86_64
squid-2.5.STABLE3-6.3E.7.x86_64.rpm
https://rhn.redhat.com/

Red Hat Linux Advanced Workstation 2.1 Itanium Processor
SRPMS
squid-2.4.STABLE7-1.21as.4.src.rpm
IA-64
squid-2.4.STABLE7-1.21as.4.ia64.rpm
https://rhn.redhat.com/

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/

Identificadores estándar

Propiedad Valor
CVE CAN-2005-0211
BID

Recursos adicionales

Squid Proxy Cache Security Update Advisory SQUID-2005:3
http://www.squid-cache.org/Advisories/SQUID-2005_3.txt

Debian Security Advisory DSA 667-1
http://lists.debian.org/debian-security-announce/debian-security-announce-2005/msg00044.html

Mandrakesoft Security Advisories MDKSA-2005:034
http://www.mandrakesoft.com/security/advisories?name=MDKSA-2005:034

SUSE Security Announcement SUSE-SA:2005:006
http://www.novell.com/linux/security/advisories/2005_06_squid.html

Red Hat Security Advisory RHSA-2005:061-19
https://rhn.redhat.com/errata/RHSA-2005-061.html

Red Hat Security Advisory RHSA-2005:060-20
https://rhn.redhat.com/errata/RHSA-2005-060.html

Histórico de versiones

Versión Comentario Data
1.0 Aviso emitido 2005-02-01
1.1 Aviso emitido por Debian (DSA 667-1). CAN añadido. 2005-02-07
1.2 Aviso emitido por Mandrake (MDKSA-2005:034). Aviso emitido por SUSE (SUSE-SA:2005:006). 2005-02-11
1.3 Aviso emitido por Red Hat (RHSA-2005:061-19) 2005-02-14
1.4 Aviso emitido por Red Hat (RHSA-2005:060-20) 2005-02-16
Ministerio de Defensa
Presidencia española. Consejo de la Unión Europea
CNI
CCN
CCN-CERT