Vulnerability Bulletins

Soporte de vulnerabilidades

Servicio de soporte de vulnerabilidades Análisis, notificación y seguimiento de aquellas vulnerabilidades más críticas, que impactan especialmente en las tecnologías empleadas en el sector público. El CCN-CERT trabajará en la recopilación y clasificación de las nuevas vulnerabilidades, realizando un análisis teórico y en laboratorio, cuando sea posible, de aquellas que por su criticidad lo requieran.

Se generarán documentos informativos o “abstracts” de dichas vulnerabilidades y se llevará a cabo un seguimiento de la evolución de la vulnerabilidad en Internet, alertando a los organismos ante cambios en la criticidad, aparición de parches, nuevas recomendaciones, constancia de explotaciones activas, etc.

Para inscribirse en este servicio o recibir más información, escribir al correo electrónico: soporte_acreditacion@ccn.cni.es

Abstracts:

Zero Day Exchange Server: HAFNIUM
Alertas relacionadas:

01 - Vulnerabilidades zero-day en Microsoft Exchange (03/03/2021)

Uso de Cisco Webex, sus implicaciones para la seguridad y privacidad. Recomendaciones y buenas prácticas / English version
Análisis de la vulnerabilidad en iOS MAIL. Recomendaciones y buenas prácticas
Avisos relacionados:

01 - Vulnerabilidades Zero-Day en iOS (24/04/2020)
02 - Análisis de la vulnerabilidad en iOS Mail. Recomendaciones y buenas prácticas (30/04/2020)
03 - Publicada la versión iOS 13.5 que corrige la vulnerabilidad Zero-Day de iOSMail (22/05/2020)
04 - Apple y Google desarrollan una API para rastrear contactos de riesgo en relación con la COVID-19 (01/06/2020)

Vulnerability Bulletins

Integer Overflow en el kernel de Linux
Vulnerability classification
Property	Value
Confidence level	Oficial
Impact	Compromiso Root
Dificulty	Avanzado
Required attacker level	Acceso remoto con cuenta
System information
Property	Value
Affected manufacturer	GNU/Linux
Affected software	Linux kernel 2.4.22 - 2.4.25 Linux kernel 2.6.1- 2.6.3
Description
Se ha descubierto una vulnerabilidad de desbordamiento de entero en las versiones de la 2.4.22 a la 2.4.25 y de la 2.6.1 a la 2.6.3 del kernel de Linux. La vulnerabilidad reside en la función ip_setsockopt(), una subrutina de la llamada al sistema setsockopt. Esta llamada al sistema permite la manipulación de varias opciones de un socket IP, el código vulnerable se encuentra concretamente en el manejo de la opción MCAST_MSFILTER. La explotación de esta vulnerabilidad podría permitir a un atacante local conseguir privilegios de root.
Solution
Si lo desea, aplique los mecanismos de actualización propios de su distribución, o bien baje las fuentes del software y compílelo usted mismo. Actualización de software Linux Kernel Linux Kernel 2.4.26 http://www.kernel.org/pub/linux/kernel/v2.4/linux-2.4.26.tar.gz Linux Kernel 2.6.4 http://www.kernel.org/pub/linux/kernel/v2.6/linux-2.6.4.tar.gz Mandrake Linux Mandrake Linux 9.1 i386 ftp://ftp.proxad.net/pub/Distributions_Linux/Mandrake/official/updates/9.1/RPMS/kernel-2.4.21.0.30mdk-1-1mdk.i586.rpm ftp://ftp.proxad.net/pub/Distributions_Linux/Mandrake/official/updates/9.1/RPMS/kernel-enterprise-2.4.21.0.30mdk-1-1mdk.i586.rpm ftp://ftp.proxad.net/pub/Distributions_Linux/Mandrake/official/updates/9.1/RPMS/kernel-secure-2.4.21.0.30mdk-1-1mdk.i586.rpm ftp://ftp.proxad.net/pub/Distributions_Linux/Mandrake/official/updates/9.1/RPMS/kernel-smp-2.4.21.0.30mdk-1-1mdk.i586.rpm ftp://ftp.proxad.net/pub/Distributions_Linux/Mandrake/official/updates/9.1/RPMS/kernel-source-2.4.21-0.30mdk.i586.rpm ftp://ftp.proxad.net/pub/Distributions_Linux/Mandrake/official/updates/9.1/SRPMS/kernel-2.4.21.0.30mdk-1-1mdk.src.rpm PPC ftp://ftp.proxad.net/pub/Distributions_Linux/Mandrake/official/updates/ppc/9.1/RPMS/kernel-2.4.21.0.30mdk-1-1mdk.ppc.rpm ftp://ftp.proxad.net/pub/Distributions_Linux/Mandrake/official/updates/ppc/9.1/RPMS/kernel-enterprise-2.4.21.0.30mdk-1-1mdk.ppc.rpm ftp://ftp.proxad.net/pub/Distributions_Linux/Mandrake/official/updates/ppc/9.1/RPMS/kernel-smp-2.4.21.0.30mdk-1-1mdk.ppc.rpm ftp://ftp.proxad.net/pub/Distributions_Linux/Mandrake/official/updates/ppc/9.1/RPMS/kernel-source-2.4.21-0.30mdk.ppc.rpm ftp://ftp.proxad.net/pub/Distributions_Linux/Mandrake/official/updates/ppc/9.1/SRPMS/kernel-2.4.21.0.30mdk-1-1mdk.src.rpm Mandrake Linux 9.2 i386 ftp://ftp.proxad.net/pub/Distributions_Linux/Mandrake/official/updates/9.2/RPMS/kernel-2.4.22.30mdk-1-1mdk.i586.rpm ftp://ftp.proxad.net/pub/Distributions_Linux/Mandrake/official/updates/9.2/RPMS/kernel-enterprise-2.4.22.30mdk-1-1mdk.i586.rpm ftp://ftp.proxad.net/pub/Distributions_Linux/Mandrake/official/updates/9.2/RPMS/kernel-i686-up-4GB-2.4.22.30mdk-1-1mdk.i586.rpm ftp://ftp.proxad.net/pub/Distributions_Linux/Mandrake/official/updates/9.2/RPMS/kernel-p3-smp-64GB-2.4.22.30mdk-1-1mdk.i586.rpm ftp://ftp.proxad.net/pub/Distributions_Linux/Mandrake/official/updates/9.2/RPMS/kernel-secure-2.4.22.30mdk-1-1mdk.i586.rpm ftp://ftp.proxad.net/pub/Distributions_Linux/Mandrake/official/updates/9.2/RPMS/kernel-smp-2.4.22.30mdk-1-1mdk.i586.rpm ftp://ftp.proxad.net/pub/Distributions_Linux/Mandrake/official/updates/9.2/RPMS/kernel-source-2.4.22-30mdk.i586.rpm ftp://ftp.proxad.net/pub/Distributions_Linux/Mandrake/official/updates/9.2/SRPMS/kernel-2.4.22.30mdk-1-1mdk.src.rpm AMD64 ftp://ftp.proxad.net/pub/Distributions_Linux/Mandrake/official/updates/amd64/9.2/RPMS/kernel-2.4.22.30mdk-1-1mdk.amd64.rpm ftp://ftp.proxad.net/pub/Distributions_Linux/Mandrake/official/updates/amd64/9.2/RPMS/kernel-secure-2.4.22.30mdk-1-1mdk.amd64.rpm ftp://ftp.proxad.net/pub/Distributions_Linux/Mandrake/official/updates/amd64/9.2/RPMS/kernel-smp-2.4.22.30mdk-1-1mdk.amd64.rpm ftp://ftp.proxad.net/pub/Distributions_Linux/Mandrake/official/updates/amd64/9.2/RPMS/kernel-source-2.4.22-30mdk.amd64.rpm ftp://ftp.proxad.net/pub/Distributions_Linux/Mandrake/official/updates/amd64/9.2/SRPMS/kernel-2.4.22.30mdk-1-1mdk.src.rpm Mandrake Multi Network Firewall 8.2 i386 ftp://ftp.proxad.net/pub/Distributions_Linux/Mandrake/official/updates/mnf8.2/RPMS/kernel-secure-2.4.19.40mdk-1-1mdk.i586.rpm ftp://ftp.proxad.net/pub/Distributions_Linux/Mandrake/official/updates/mnf8.2/SRPMS/kernel-2.4.19.40mdk-1-1mdk.src.rpm Mandrake Corporate Server 2.1 i386 ftp://ftp.proxad.net/pub/Distributions_Linux/Mandrake/official/updates/corporate/2.1/RPMS/kernel-2.4.19.40mdk-1-1mdk.i586.rpm ftp://ftp.proxad.net/pub/Distributions_Linux/Mandrake/official/updates/corporate/2.1/RPMS/kernel-enterprise-2.4.19.40mdk-1-1mdk.i586.rpm ftp://ftp.proxad.net/pub/Distributions_Linux/Mandrake/official/updates/corporate/2.1/RPMS/kernel-secure-2.4.19.40mdk-1-1mdk.i586.rpm ftp://ftp.proxad.net/pub/Distributions_Linux/Mandrake/official/updates/corporate/2.1/RPMS/kernel-smp-2.4.19.40mdk-1-1mdk.i586.rpm ftp://ftp.proxad.net/pub/Distributions_Linux/Mandrake/official/updates/corporate/2.1/RPMS/kernel-source-2.4.19-40mdk.i586.rpm ftp://ftp.proxad.net/pub/Distributions_Linux/Mandrake/official/updates/corporate/2.1/SRPMS/kernel-2.4.19.40mdk-1-1mdk.src.rpm x86_64 ftp://ftp.proxad.net/pub/Distributions_Linux/Mandrake/official/updates/x86_64/corporate/2.1/RPMS/kernel-2.4.19.41mdk-1-1mdk.x86_64.rpm ftp://ftp.proxad.net/pub/Distributions_Linux/Mandrake/official/updates/x86_64/corporate/2.1/RPMS/kernel-secure-2.4.19.41mdk-1-1mdk.x86_64.rpm ftp://ftp.proxad.net/pub/Distributions_Linux/Mandrake/official/updates/x86_64/corporate/2.1/RPMS/kernel-smp-2.4.19.41mdk-1-1mdk.x86_64.rpm ftp://ftp.proxad.net/pub/Distributions_Linux/Mandrake/official/updates/x86_64/corporate/2.1/RPMS/kernel-source-2.4.19-41mdk.x86_64.rpm ftp://ftp.proxad.net/pub/Distributions_Linux/Mandrake/official/updates/x86_64/corporate/2.1/SRPMS/kernel-2.4.19.40mdk-1-1mdk.src.rpm ftp://ftp.proxad.net/pub/Distributions_Linux/Mandrake/official/updates/x86_64/corporate/2.1/SRPMS/kernel-2.4.19.41mdk-1-1mdk.src.rpm Mandrakelinux 10.0 i386 ftp://ftp.proxad.net/pub/Distributions_Linux/Mandrake/official/updates/10.0/RPMS/kernel-2.4.25.4mdk-1-1mdk.i586.rpm ftp://ftp.proxad.net/pub/Distributions_Linux/Mandrake/official/updates/10.0/RPMS/kernel-2.6.3.9mdk-1-1mdk.i586.rpm ftp://ftp.proxad.net/pub/Distributions_Linux/Mandrake/official/updates/10.0/RPMS/kernel-enterprise-2.4.25.4mdk-1-1mdk.i586.rpm ftp://ftp.proxad.net/pub/Distributions_Linux/Mandrake/official/updates/10.0/RPMS/kernel-enterprise-2.6.3.9mdk-1-1mdk.i586.rpm ftp://ftp.proxad.net/pub/Distributions_Linux/Mandrake/official/updates/10.0/RPMS/kernel-i686-up-4GB-2.4.25.4mdk-1-1mdk.i586.rpm ftp://ftp.proxad.net/pub/Distributions_Linux/Mandrake/official/updates/10.0/RPMS/kernel-i686-up-4GB-2.6.3.9mdk-1-1mdk.i586.rpm ftp://ftp.proxad.net/pub/Distributions_Linux/Mandrake/official/updates/10.0/RPMS/kernel-p3-smp-64GB-2.4.25.4mdk-1-1mdk.i586.rpm ftp://ftp.proxad.net/pub/Distributions_Linux/Mandrake/official/updates/10.0/RPMS/kernel-p3-smp-64GB-2.6.3.9mdk-1-1mdk.i586.rpm ftp://ftp.proxad.net/pub/Distributions_Linux/Mandrake/official/updates/10.0/RPMS/kernel-secure-2.6.3.9mdk-1-1mdk.i586.rpm ftp://ftp.proxad.net/pub/Distributions_Linux/Mandrake/official/updates/10.0/RPMS/kernel-smp-2.4.25.4mdk-1-1mdk.i586.rpm ftp://ftp.proxad.net/pub/Distributions_Linux/Mandrake/official/updates/10.0/RPMS/kernel-smp-2.6.3.9mdk-1-1mdk.i586.rpm ftp://ftp.proxad.net/pub/Distributions_Linux/Mandrake/official/updates/10.0/RPMS/kernel-source-2.4.25-4mdk.i586.rpm ftp://ftp.proxad.net/pub/Distributions_Linux/Mandrake/official/updates/10.0/RPMS/kernel-source-2.6.3-9mdk.i586.rpm ftp://ftp.proxad.net/pub/Distributions_Linux/Mandrake/official/updates/10.0/RPMS/kernel-source-stripped-2.6.3-9mdk.i586.rpm ftp://ftp.proxad.net/pub/Distributions_Linux/Mandrake/official/updates/10.0/SRPMS/kernel-2.4.25.4mdk-1-1mdk.src.rpm ftp://ftp.proxad.net/pub/Distributions_Linux/Mandrake/official/updates/10.0/SRPMS/kernel-2.6.3.9mdk-1-1mdk.src.rpm SuSe Linux SuSE-9.1 i386 ftp://ftp.suse.com/pub/suse/i386/update/9.1/rpm/i586/kernel-default-2.6.4-54.3.i586.rpm ftp://ftp.suse.com/pub/suse/i386/update/9.1/rpm/i586/kernel-smp-2.6.4-54.3.i586.rpm ftp://ftp.suse.com/pub/suse/i386/update/9.1/rpm/i586/kernel-bigsmp-2.6.4-54.3.i586.rpm ftp://ftp.suse.com/pub/suse/i386/update/9.1/rpm/i586/kernel-syms-2.6.4-54.3.i586.rpm ftp://ftp.suse.com/pub/suse/i386/update/9.1/rpm/i586/kernel-default-2.6.4-54.3.i586.patch.rpm ftp://ftp.suse.com/pub/suse/i386/update/9.1/rpm/i586/kernel-smp-2.6.4-54.3.i586.patch.rpm ftp://ftp.suse.com/pub/suse/i386/update/9.1/rpm/i586/kernel-bigsmp-2.6.4-54.3.i586.patch.rpm ftp://ftp.suse.com/pub/suse/i386/update/9.1/rpm/i586/kernel-syms-2.6.4-54.3.i586.patch.rpm ftp://ftp.suse.com/pub/suse/i386/update/9.1/rpm/src/kernel-source-2.6.4-54.3.src.rpm Opteron x86_64 ftp://ftp.suse.com/pub/suse/x86_64/update/9.1/rpm/x86_64/kernel-default-2.6.4-54.3.x86_64.rpm ftp://ftp.suse.com/pub/suse/x86_64/update/9.1/rpm/x86_64/kernel-smp-2.6.4-54.3.x86_64.rpm ftp://ftp.suse.com/pub/suse/x86_64/update/9.1/rpm/x86_64/kernel-syms-2.6.4-54.3.x86_64.rpm ftp://ftp.suse.com/pub/suse/x86_64/update/9.1/rpm/x86_64/kernel-default-2.6.4-54.3.x86_64.patch.rpm ftp://ftp.suse.com/pub/suse/x86_64/update/9.1/rpm/x86_64/kernel-smp-2.6.4-54.3.x86_64.patch.rpm ftp://ftp.suse.com/pub/suse/x86_64/update/9.1/rpm/src/kernel-syms-2.6.4-54.3.src.rpm ftp://ftp.suse.com/pub/suse/x86_64/update/9.1/rpm/src/kernel-source-2.6.4-54.3.src.rpm SuSE-9.0 i386 ftp://ftp.suse.com/pub/suse/i386/update/9.0/rpm/i586/k_deflt-2.4.21-215.i586.rpm ftp://ftp.suse.com/pub/suse/i386/update/9.0/rpm/i586/k_athlon-2.4.21-215.i586.rpm ftp://ftp.suse.com/pub/suse/i386/update/9.0/rpm/i586/k_smp-2.4.21-215.i586.rpm ftp://ftp.suse.com/pub/suse/i386/update/9.0/rpm/src/kernel-source-2.4.21-215.src.rpm Opteron x86_64 ftp://ftp.suse.com/pub/suse/x86_64/update/9.0/rpm/x86_64/k_deflt-2.4.21-215.x86_64.rpm ftp://ftp.suse.com/pub/suse/x86_64/update/9.0/rpm/x86_64/k_smp-2.4.21-215.x86_64.rpm ftp://ftp.suse.com/pub/suse/x86_64/update/9.0/rpm/src/kernel-source-2.4.21-215.src.rpm SuSE-8.2 i386 ftp://ftp.suse.com/pub/suse/i386/update/8.2/rpm/i586/k_deflt-2.4.20-111.i586.rpm ftp://ftp.suse.com/pub/suse/i386/update/8.2/rpm/i586/k_athlon-2.4.20-111.i586.rpm ftp://ftp.suse.com/pub/suse/i386/update/8.2/rpm/i586/k_smp-2.4.20-111.i586.rpm ftp://ftp.suse.com/pub/suse/i386/update/8.2/rpm/i586/k_psmp-2.4.20-111.i586.rpm ftp://ftp.suse.com/pub/suse/i386/update/8.2/rpm/src/kernel-source-2.4.20.SuSE-111.src.rpm SuSE-8.1 i386 ftp://ftp.suse.com/pub/suse/i386/update/8.1/rpm/i586/k_deflt-2.4.21-215.i586.rpm ftp://ftp.suse.com/pub/suse/i386/update/8.1/rpm/i586/k_athlon-2.4.21-215.i586.rpm ftp://ftp.suse.com/pub/suse/i386/update/8.1/rpm/i586/k_smp-2.4.21-215.i586.rpm ftp://ftp.suse.com/pub/suse/i386/update/8.1/rpm/i586/k_psmp-2.4.21-215.i586.rpm ftp://ftp.suse.com/pub/suse/i386/update/8.1/rpm/src/kernel-source-2.4.21-215.src.rpm SuSE-8.0 i386 ftp://ftp.suse.com/pub/suse/i386/update/8.0/images/k_deflt-2.4.18-293.i386.rpm ftp://ftp.suse.com/pub/suse/i386/update/8.0/images/k_smp-2.4.18-293.i386.rpm ftp://ftp.suse.com/pub/suse/i386/update/8.0/images/k_psmp-2.4.18-293.i386.rpm ftp://ftp.suse.com/pub/suse/i386/update/8.0/images/k_i386-2.4.18-293.i386.rpm ftp://ftp.suse.com/pub/suse/i386/update/8.0/zq1/kernel-source-2.4.18.SuSE-293.nosrc.rpm
Standar resources
Property	Value
CVE	CAN-2004-0424
BID	NULL
Other resources
iSEC Security Advisory http://isec.pl/vulnerabilities/isec-0015-msfilter.txt MandrakeSoft Security Advisory MDKSA-2004:037 http://www.mandrakesecure.net/en/advisories/advisory.php?name=MDKSA-2004:037 SuSe Security Advisory SuSE-SA:2004:010 http://www.suse.de/de/security/2004_10_kernel.html

Version history
Version	Comments	Date
1.0	Aviso emitido	2004-04-22
2.0	Prueba de concepto disponible públicamente	2004-04-23
2.1	CAN añadido. Advisory emitido por Mandrake.	2004-04-28
2.2	Aviso emitido por SuSe (SuSE-SA:2004:010)	2004-05-05