Boletines de Vulnerabilidades

int(4900)

Boletines de Vulnerabilidades

Denegación de servicio en StrongSwan
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	StrongSwan 2.8 < 2.8.11 StrongSwan 4.2 < 4.2.17 StrongSwan 4.3 < 4.3.3
Descripción
Se ha descubierto una vulnerabilidad en StrongSwan 2.8. La vulnerabilidad reside en un error en el manejo de los certifcados X.509. Un atacante remoto podría causar una denegación de servicio mediante un certificado X.509 con el campo "Relative Distinguished Names" (RDNs) especialmente diseñado.
Solución
Actualización de software Debian (DSA-1899-1) Debian Linux 4.0 Source http://security.debian.org/pool/updates/main/s/strongswan/strongswan_2.8.0+dfsg-1+etch2.diff.gz http://security.debian.org/pool/updates/main/s/strongswan/strongswan_2.8.0+dfsg.orig.tar.gz http://security.debian.org/pool/updates/main/s/strongswan/strongswan_2.8.0+dfsg-1+etch2.dsc alpha (DEC Alpha) http://security.debian.org/pool/updates/main/s/strongswan/strongswan_2.8.0+dfsg-1+etch2_alpha.deb amd64 (AMD x86_64 (AMD64)) http://security.debian.org/pool/updates/main/s/strongswan/strongswan_2.8.0+dfsg-1+etch2_amd64.deb arm (ARM) http://security.debian.org/pool/updates/main/s/strongswan/strongswan_2.8.0+dfsg-1+etch2_arm.deb hppa (HP PA RISC) http://security.debian.org/pool/updates/main/s/strongswan/strongswan_2.8.0+dfsg-1+etch2_hppa.deb i386 (Intel ia32) http://security.debian.org/pool/updates/main/s/strongswan/strongswan_2.8.0+dfsg-1+etch2_i386.deb ia64 (Intel ia64) http://security.debian.org/pool/updates/main/s/strongswan/strongswan_2.8.0+dfsg-1+etch2_ia64.deb mips (MIPS (Big Endian)) http://security.debian.org/pool/updates/main/s/strongswan/strongswan_2.8.0+dfsg-1+etch2_mips.deb mipsel (MIPS (Little Endian)) http://security.debian.org/pool/updates/main/s/strongswan/strongswan_2.8.0+dfsg-1+etch2_mipsel.deb powerpc (PowerPC) http://security.debian.org/pool/updates/main/s/strongswan/strongswan_2.8.0+dfsg-1+etch2_powerpc.deb s390 (IBM S/390) http://security.debian.org/pool/updates/main/s/strongswan/strongswan_2.8.0+dfsg-1+etch2_s390.deb sparc (Sun SPARC/UltraSPARC) http://security.debian.org/pool/updates/main/s/strongswan/strongswan_2.8.0+dfsg-1+etch2_sparc.deb Debian (DSA-1899-1) Debian Linux 5.0 Source http://security.debian.org/pool/updates/main/s/strongswan/strongswan_4.2.4-5+lenny3.diff.gz http://security.debian.org/pool/updates/main/s/strongswan/strongswan_4.2.4-5+lenny3.dsc http://security.debian.org/pool/updates/main/s/strongswan/strongswan_4.2.4.orig.tar.gz alpha (DEC Alpha) http://security.debian.org/pool/updates/main/s/strongswan/strongswan_4.2.4-5+lenny3_alpha.deb amd64 (AMD x86_64 (AMD64)) http://security.debian.org/pool/updates/main/s/strongswan/strongswan_4.2.4-5+lenny3_amd64.deb arm (ARM) http://security.debian.org/pool/updates/main/s/strongswan/strongswan_4.2.4-5+lenny3_arm.deb armel (ARM EABI) http://security.debian.org/pool/updates/main/s/strongswan/strongswan_4.2.4-5+lenny3_armel.deb hppa (HP PA RISC) http://security.debian.org/pool/updates/main/s/strongswan/strongswan_4.2.4-5+lenny3_hppa.deb i386 (Intel ia32) http://security.debian.org/pool/updates/main/s/strongswan/strongswan_4.2.4-5+lenny3_i386.deb ia64 (Intel ia64) http://security.debian.org/pool/updates/main/s/strongswan/strongswan_4.2.4-5+lenny3_ia64.deb mips (MIPS (Big Endian)) http://security.debian.org/pool/updates/main/s/strongswan/strongswan_4.2.4-5+lenny3_mips.deb mipsel (MIPS (Little Endian)) http://security.debian.org/pool/updates/main/s/strongswan/strongswan_4.2.4-5+lenny3_mipsel.deb powerpc (PowerPC) http://security.debian.org/pool/updates/main/s/strongswan/strongswan_4.2.4-5+lenny3_powerpc.deb s390 (IBM S/390) http://security.debian.org/pool/updates/main/s/strongswan/strongswan_4.2.4-5+lenny3_s390.deb sparc (Sun SPARC/UltraSPARC) http://security.debian.org/pool/updates/main/s/strongswan/strongswan_4.2.4-5+lenny3_sparc.deb Suse Linux Las actualizaciones pueden descargarse mediante YAST o del servidor FTP oficial de Suse Linux.
Identificadores estándar
Propiedad	Valor
CVE	CVE-2009-2661
BID
Recursos adicionales
Debian Security Advisory (DSA-1899-1) http://lists.debian.org/debian-security-announce/2009/msg00220.html SUSE Security Advisory (SUSE-SR:2009:016) http://www.novell.com/linux/security/advisories/2009_16_sr.html