int(1856)

Vulnerability Bulletins


Denegación de servicio en Squid

Vulnerability classification

Property Value
Confidence level Oficial
Impact Denegación de Servicio
Dificulty Experto
Required attacker level Acceso remoto sin cuenta a un servicio exotico

System information

Property Value
Affected manufacturer GNU/Linux
Affected software Squid <= 2.5.STABLE10

Description

Se ha descubierto una vulnerabilidad de denegación de servicio en Squid 2.5.STABLE10 y anteriores. La vulnerabilidad reside en que al realizar autenticación NTLM ciertas peticiones no se manejan de forma adecuada.

Un atacante remoto podría causar una denegación de servicio mediante peticiones especialmente diseñadas.

Solution



Actualización de software

Debian

Debian Linux 3.1
Source
http://security.debian.org/pool/updates/main/s/squid/squid_2.5.9-10sarge2.dsc
http://security.debian.org/pool/updates/main/s/squid/squid_2.5.9-10sarge2.diff.gz
http://security.debian.org/pool/updates/main/s/squid/squid_2.5.9.orig.tar.gz
Architecture independent
http://security.debian.org/pool/updates/main/s/squid/squid-common_2.5.9-10sarge2_all.deb
Alpha
http://security.debian.org/pool/updates/main/s/squid/squid_2.5.9-10sarge2_alpha.deb
http://security.debian.org/pool/updates/main/s/squid/squid-cgi_2.5.9-10sarge2_alpha.deb
http://security.debian.org/pool/updates/main/s/squid/squidclient_2.5.9-10sarge2_alpha.deb
AMD64
http://security.debian.org/pool/updates/main/s/squid/squid_2.5.9-10sarge2_amd64.deb
http://security.debian.org/pool/updates/main/s/squid/squid-cgi_2.5.9-10sarge2_amd64.deb
http://security.debian.org/pool/updates/main/s/squid/squidclient_2.5.9-10sarge2_amd64.deb
ARM
http://security.debian.org/pool/updates/main/s/squid/squid_2.5.9-10sarge2_arm.deb
http://security.debian.org/pool/updates/main/s/squid/squid-cgi_2.5.9-10sarge2_arm.deb
http://security.debian.org/pool/updates/main/s/squid/squidclient_2.5.9-10sarge2_arm.deb
Intel IA-32
http://security.debian.org/pool/updates/main/s/squid/squid_2.5.9-10sarge2_i386.deb
http://security.debian.org/pool/updates/main/s/squid/squid-cgi_2.5.9-10sarge2_i386.deb
http://security.debian.org/pool/updates/main/s/squid/squidclient_2.5.9-10sarge2_i386.deb
Intel IA-64
http://security.debian.org/pool/updates/main/s/squid/squid_2.5.9-10sarge2_ia64.deb
http://security.debian.org/pool/updates/main/s/squid/squid-cgi_2.5.9-10sarge2_ia64.deb
http://security.debian.org/pool/updates/main/s/squid/squidclient_2.5.9-10sarge2_ia64.deb
HP Precision
http://security.debian.org/pool/updates/main/s/squid/squid_2.5.9-10sarge2_hppa.deb
http://security.debian.org/pool/updates/main/s/squid/squid-cgi_2.5.9-10sarge2_hppa.deb
http://security.debian.org/pool/updates/main/s/squid/squidclient_2.5.9-10sarge2_hppa.deb
Motorola 680x0
http://security.debian.org/pool/updates/main/s/squid/squid_2.5.9-10sarge2_m68k.deb
http://security.debian.org/pool/updates/main/s/squid/squid-cgi_2.5.9-10sarge2_m68k.deb
http://security.debian.org/pool/updates/main/s/squid/squidclient_2.5.9-10sarge2_m68k.deb
Big endian MIPS
http://security.debian.org/pool/updates/main/s/squid/squid_2.5.9-10sarge2_mips.deb
http://security.debian.org/pool/updates/main/s/squid/squid-cgi_2.5.9-10sarge2_mips.deb
http://security.debian.org/pool/updates/main/s/squid/squidclient_2.5.9-10sarge2_mips.deb
Little endian MIPS
http://security.debian.org/pool/updates/main/s/squid/squid_2.5.9-10sarge2_mipsel.deb
http://security.debian.org/pool/updates/main/s/squid/squid-cgi_2.5.9-10sarge2_mipsel.deb
http://security.debian.org/pool/updates/main/s/squid/squidclient_2.5.9-10sarge2_mipsel.deb
PowerPC
http://security.debian.org/pool/updates/main/s/squid/squid_2.5.9-10sarge2_powerpc.deb
http://security.debian.org/pool/updates/main/s/squid/squid-cgi_2.5.9-10sarge2_powerpc.deb
http://security.debian.org/pool/updates/main/s/squid/squidclient_2.5.9-10sarge2_powerpc.deb
IBM S/390
http://security.debian.org/pool/updates/main/s/squid/squid_2.5.9-10sarge2_s390.deb
http://security.debian.org/pool/updates/main/s/squid/squid-cgi_2.5.9-10sarge2_s390.deb
http://security.debian.org/pool/updates/main/s/squid/squidclient_2.5.9-10sarge2_s390.deb
Sun Sparc
http://security.debian.org/pool/updates/main/s/squid/squid_2.5.9-10sarge2_sparc.deb
http://security.debian.org/pool/updates/main/s/squid/squid-cgi_2.5.9-10sarge2_sparc.deb
http://security.debian.org/pool/updates/main/s/squid/squidclient_2.5.9-10sarge2_sparc.deb

Mandriva Linux

Mandrakelinux 10.1
X86
ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/10.1/RPMS/squid-2.5.STABLE9-1.4.101mdk.i586.rpm
ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/10.1/SRPMS/squid-2.5.STABLE9-1.4.101mdk.src.rpm
X86_64
ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/x86_64/10.1/RPMS/squid-2.5.STABLE9-1.4.101mdk.x86_64.rpm
ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/x86_64/10.1/SRPMS/squid-2.5.STABLE9-1.4.101mdk.src.rpm

Corporate Server 2.1
X86
ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/corporate/2.1/RPMS/squid-2.4.STABLE7-2.9.C21mdk.i586.rpm
ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/corporate/2.1/SRPMS/squid-2.4.STABLE7-2.9.C21mdk.src.rpm
X86_64
ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/x86_64/corporate/2.1/RPMS/squid-2.4.STABLE7-2.9.C21mdk.x86_64.rpm
ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/x86_64/corporate/2.1/SRPMS/squid-2.4.STABLE7-2.9.C21mdk.src.rpm

Corporate Server 3.0
X86
ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/corporate/3.0/RPMS/squid-2.5.STABLE9-1.4.C30mdk.i586.rpm
ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/corporate/3.0/SRPMS/squid-2.5.STABLE9-1.4.C30mdk.src.rpm
X86_64
ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/x86_64/corporate/3.0/RPMS/squid-2.5.STABLE9-1.4.C30mdk.x86_64.rpm
ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/x86_64/corporate/3.0/SRPMS/squid-2.5.STABLE9-1.4.C30mdk.src.rpm

Multi Network Firewall 2.0
X86
ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/mnf/2.0/RPMS/squid-2.5.STABLE9-1.4.M20mdk.i586.rpm
ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/mnf/2.0/SRPMS/squid-2.5.STABLE9-1.4.M20mdk.src.rpm

Mandrivalinux LE2005
X86
ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/10.2/RPMS/squid-2.5.STABLE9-1.4.102mdk.i586.rpm
ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/10.2/SRPMS/squid-2.5.STABLE9-1.4.102mdk.src.rpm
X86_64
ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/x86_64/10.2/RPMS/squid-2.5.STABLE9-1.4.102mdk.x86_64.rpm
ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/x86_64/10.2/SRPMS/squid-2.5.STABLE9-1.4.102mdk.src.rpm

Mandrivalinux 2006
X86
ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/2006.0/RPMS/squid-2.5.STABLE10-10.1.20060mdk.i586.rpm
ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/2006.0/RPMS/squid-cachemgr-2.5.STABLE10-10.1.20060mdk.i586.rpm
ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/2006.0/SRPMS/squid-2.5.STABLE10-10.1.20060mdk.src.rpm
X86_64
ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/x86_64/2006.0/RPMS/squid-2.5.STABLE10-10.1.20060mdk.x86_64.rpm
ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/x86_64/2006.0/RPMS/squid-cachemgr-2.5.STABLE10-10.1.20060mdk.x86_64.rpm
ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/x86_64/2006.0/SRPMS/squid-2.5.STABLE10-10.1.20060mdk.src.rpm

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

SCO
UnixWare 7.1.4
ftp://ftp.sco.com/pub/updates/UnixWare/SCOSA-2005.44

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

SGI
Advanced Linux Environment 3 / RPM / Patch 10291
ftp://oss.sgi.com/projects/sgi_propack/download/3/updates/RPMS
Advanced Linux Environment 3 / SRPM / Patch 10291
ftp://oss.sgi.com/projects/sgi_propack/download/3/updates/SRPMS

Standar resources

Property Value
CVE CAN-2005-2917
BID

Other resources

Debian Security Advisory (DSA 828-1)
http://lists.debian.org/debian-security-announce/debian-security-announce-2005/msg00220.html

Mandriva Security Advisory (MDKSA-2005:181)
http://www.mandriva.com/security/advisories?name=MDKSA-2005:181

SUSE Security Advisory (SUSE-SR:2005:025)
http://www.novell.com/linux/security/advisories/2005_25_sr.html

SUSE Security Advisory (SUSE-SR:2005:027)
http://www.novell.com/linux/security/advisories/2005_27_sr.html

SCO Security Advisory (SCOSA-2005.44)
ftp://ftp.sco.com/pub/updates/UnixWare/SCOSA-2005.44/SCOSA-2005.44.txt

Red Hat Security Advisory (RHSA-2006:0052-7)
https://rhn.redhat.com/errata/RHSA-2006-0052.html

Red Hat Security Advisory (RHSA-2006:0045-8)
https://rhn.redhat.com/errata/RHSA-2006-0045.html

SGI Security Advisory (20060401-01-U)
ftp://patches.sgi.com/support/free/security/advisories/20060401-01.U.asc

Version history

Version Comments Date
1.0 Aviso emitido 2005-10-06
1.1 Aviso emitido por Mandriva (MDKSA-2005:181) 2005-10-17
1.2 Aviso emitido por Suse (SUSE-SR:2005:025) 2005-11-14
1.3 Aviso emitido por Suse (SUSE-SR:2005:027) 2005-11-23
1.4 Aviso emitido por SCO (SCOSA-2005.44) 2005-11-28
1.5 Aviso emitido por Red Hat (RHSA-2006:0052-7) 2006-03-08
1.6 Aviso emitido por Red Hat (RHSA-2006:0045-8) 2006-03-16
1.7 Aviso emitido por SGI (20060401-01-U) 2006-04-05
Ministerio de Defensa
CNI
CCN
CCN-CERT