int(3354)

Boletines de Vulnerabilidades

Aumento de privilegios en Bochs

Clasificación de la vulnerabilidad
Propiedad Valor
Nivel de Confianza Oficial
Impacto Aumento de privilegios
Dificultad Experto
Requerimientos del atacante Acceso remoto con cuenta

Información sobre el sistema
Propiedad Valor
Fabricante afectado GNU/Linux
Software afectado Bochs 2.3

Descripción
Se ha encontrado una vulnerabilidad en Bochs 2.3 en el dispositivo emulated NE2000 en el archivo iodev/ne2k.cc. La vulnerabilidad reside en un error en la función bx_ne2k_c::rx_frame.

Un atacante local podría obtener privilegios en el sistema operativo del host mediante métodos que provocan que los valores del registro TXCNT sobrepasen el tamaño de la memoria del dispositivo.

Solución


Actualización de software

Debian (DSA 1351-)

Debian Linux 3.1
Source
http://security.debian.org/pool/updates/main/b/bochs/bochs_2.1.1+20041109-3sarge1.dsc
http://security.debian.org/pool/updates/main/b/bochs/bochs_2.1.1+20041109-3sarge1.diff.gz
http://security.debian.org/pool/updates/main/b/bochs/bochs_2.1.1+20041109.orig.tar.gz
Architecture independent
http://security.debian.org/pool/updates/main/b/bochs/bochs-doc_2.1.1+20041109-3sarge1_all.deb
http://security.debian.org/pool/updates/main/b/bochs/bochsbios_2.1.1+20041109-3sarge1_all.deb
Alpha
http://security.debian.org/pool/updates/main/b/bochs/bochs_2.1.1+20041109-3sarge1_alpha.deb
http://security.debian.org/pool/updates/main/b/bochs/bochs-sdl_2.1.1+20041109-3sarge1_alpha.deb
http://security.debian.org/pool/updates/main/b/bochs/bochs-term_2.1.1+20041109-3sarge1_alpha.deb
http://security.debian.org/pool/updates/main/b/bochs/bochs-wx_2.1.1+20041109-3sarge1_alpha.deb
http://security.debian.org/pool/updates/main/b/bochs/bochs-x_2.1.1+20041109-3sarge1_alpha.deb
http://security.debian.org/pool/updates/main/b/bochs/bximage_2.1.1+20041109-3sarge1_alpha.deb
AMD64
http://security.debian.org/pool/updates/main/b/bochs/bochs_2.1.1+20041109-3sarge1_amd64.deb
http://security.debian.org/pool/updates/main/b/bochs/bochs-sdl_2.1.1+20041109-3sarge1_amd64.deb
http://security.debian.org/pool/updates/main/b/bochs/bochs-term_2.1.1+20041109-3sarge1_amd64.deb
http://security.debian.org/pool/updates/main/b/bochs/bochs-wx_2.1.1+20041109-3sarge1_amd64.deb
http://security.debian.org/pool/updates/main/b/bochs/bochs-x_2.1.1+20041109-3sarge1_amd64.deb
http://security.debian.org/pool/updates/main/b/bochs/bximage_2.1.1+20041109-3sarge1_amd64.deb
ARM
http://security.debian.org/pool/updates/main/b/bochs/bochs_2.1.1+20041109-3sarge1_arm.deb
http://security.debian.org/pool/updates/main/b/bochs/bochs-sdl_2.1.1+20041109-3sarge1_arm.deb
http://security.debian.org/pool/updates/main/b/bochs/bochs-term_2.1.1+20041109-3sarge1_arm.deb
http://security.debian.org/pool/updates/main/b/bochs/bochs-wx_2.1.1+20041109-3sarge1_arm.deb
http://security.debian.org/pool/updates/main/b/bochs/bochs-x_2.1.1+20041109-3sarge1_arm.deb
http://security.debian.org/pool/updates/main/b/bochs/bximage_2.1.1+20041109-3sarge1_arm.deb
HP Precision
http://security.debian.org/pool/updates/main/b/bochs/bochs_2.1.1+20041109-3sarge1_hppa.deb
http://security.debian.org/pool/updates/main/b/bochs/bochs-sdl_2.1.1+20041109-3sarge1_hppa.deb
http://security.debian.org/pool/updates/main/b/bochs/bochs-term_2.1.1+20041109-3sarge1_hppa.deb
http://security.debian.org/pool/updates/main/b/bochs/bochs-wx_2.1.1+20041109-3sarge1_hppa.deb
http://security.debian.org/pool/updates/main/b/bochs/bochs-x_2.1.1+20041109-3sarge1_hppa.deb
http://security.debian.org/pool/updates/main/b/bochs/bximage_2.1.1+20041109-3sarge1_hppa.deb
Intel IA-32
http://security.debian.org/pool/updates/main/b/bochs/bochs_2.1.1+20041109-3sarge1_i386.deb
http://security.debian.org/pool/updates/main/b/bochs/bochs-sdl_2.1.1+20041109-3sarge1_i386.deb
http://security.debian.org/pool/updates/main/b/bochs/bochs-svga_2.1.1+20041109-3sarge1_i386.deb
http://security.debian.org/pool/updates/main/b/bochs/bochs-term_2.1.1+20041109-3sarge1_i386.deb
http://security.debian.org/pool/updates/main/b/bochs/bochs-wx_2.1.1+20041109-3sarge1_i386.deb
http://security.debian.org/pool/updates/main/b/bochs/bochs-x_2.1.1+20041109-3sarge1_i386.deb
http://security.debian.org/pool/updates/main/b/bochs/bximage_2.1.1+20041109-3sarge1_i386.deb
http://security.debian.org/pool/updates/main/b/bochs/sb16ctrl-bochs_2.1.1+20041109-3sarge1_i386.deb
Intel IA-64
http://security.debian.org/pool/updates/main/b/bochs/bochs_2.1.1+20041109-3sarge1_ia64.deb
http://security.debian.org/pool/updates/main/b/bochs/bochs-sdl_2.1.1+20041109-3sarge1_ia64.deb
http://security.debian.org/pool/updates/main/b/bochs/bochs-term_2.1.1+20041109-3sarge1_ia64.deb
http://security.debian.org/pool/updates/main/b/bochs/bochs-wx_2.1.1+20041109-3sarge1_ia64.deb
http://security.debian.org/pool/updates/main/b/bochs/bochs-x_2.1.1+20041109-3sarge1_ia64.deb
http://security.debian.org/pool/updates/main/b/bochs/bximage_2.1.1+20041109-3sarge1_ia64.deb
Motorola 680x0
http://security.debian.org/pool/updates/main/b/bochs/bochs_2.1.1+20041109-3sarge1_m68k.deb
http://security.debian.org/pool/updates/main/b/bochs/bochs-sdl_2.1.1+20041109-3sarge1_m68k.deb
http://security.debian.org/pool/updates/main/b/bochs/bochs-term_2.1.1+20041109-3sarge1_m68k.deb
http://security.debian.org/pool/updates/main/b/bochs/bochs-wx_2.1.1+20041109-3sarge1_m68k.deb
http://security.debian.org/pool/updates/main/b/bochs/bochs-x_2.1.1+20041109-3sarge1_m68k.deb
http://security.debian.org/pool/updates/main/b/bochs/bximage_2.1.1+20041109-3sarge1_m68k.deb
Big endian MIPS
http://security.debian.org/pool/updates/main/b/bochs/bochs_2.1.1+20041109-3sarge1_mips.deb
http://security.debian.org/pool/updates/main/b/bochs/bochs-sdl_2.1.1+20041109-3sarge1_mips.deb
http://security.debian.org/pool/updates/main/b/bochs/bochs-term_2.1.1+20041109-3sarge1_mips.deb
http://security.debian.org/pool/updates/main/b/bochs/bochs-wx_2.1.1+20041109-3sarge1_mips.deb
http://security.debian.org/pool/updates/main/b/bochs/bochs-x_2.1.1+20041109-3sarge1_mips.deb
http://security.debian.org/pool/updates/main/b/bochs/bximage_2.1.1+20041109-3sarge1_mips.deb
Little endian MIPS
http://security.debian.org/pool/updates/main/b/bochs/bochs_2.1.1+20041109-3sarge1_mipsel.deb
http://security.debian.org/pool/updates/main/b/bochs/bochs-sdl_2.1.1+20041109-3sarge1_mipsel.deb
http://security.debian.org/pool/updates/main/b/bochs/bochs-term_2.1.1+20041109-3sarge1_mipsel.deb
http://security.debian.org/pool/updates/main/b/bochs/bochs-wx_2.1.1+20041109-3sarge1_mipsel.deb
http://security.debian.org/pool/updates/main/b/bochs/bochs-x_2.1.1+20041109-3sarge1_mipsel.deb
http://security.debian.org/pool/updates/main/b/bochs/bximage_2.1.1+20041109-3sarge1_mipsel.deb
PowerPC
http://security.debian.org/pool/updates/main/b/bochs/bochs_2.1.1+20041109-3sarge1_powerpc.deb
http://security.debian.org/pool/updates/main/b/bochs/bochs-sdl_2.1.1+20041109-3sarge1_powerpc.deb
http://security.debian.org/pool/updates/main/b/bochs/bochs-term_2.1.1+20041109-3sarge1_powerpc.deb
http://security.debian.org/pool/updates/main/b/bochs/bochs-wx_2.1.1+20041109-3sarge1_powerpc.deb
http://security.debian.org/pool/updates/main/b/bochs/bochs-x_2.1.1+20041109-3sarge1_powerpc.deb
http://security.debian.org/pool/updates/main/b/bochs/bximage_2.1.1+20041109-3sarge1_powerpc.deb
IBM S/390
http://security.debian.org/pool/updates/main/b/bochs/bochs_2.1.1+20041109-3sarge1_s390.deb
http://security.debian.org/pool/updates/main/b/bochs/bochs-sdl_2.1.1+20041109-3sarge1_s390.deb
http://security.debian.org/pool/updates/main/b/bochs/bochs-term_2.1.1+20041109-3sarge1_s390.deb
http://security.debian.org/pool/updates/main/b/bochs/bochs-wx_2.1.1+20041109-3sarge1_s390.deb
http://security.debian.org/pool/updates/main/b/bochs/bochs-x_2.1.1+20041109-3sarge1_s390.deb
http://security.debian.org/pool/updates/main/b/bochs/bximage_2.1.1+20041109-3sarge1_s390.deb
Sun Sparc
http://security.debian.org/pool/updates/main/b/bochs/bochs_2.1.1+20041109-3sarge1_sparc.deb
http://security.debian.org/pool/updates/main/b/bochs/bochs-sdl_2.1.1+20041109-3sarge1_sparc.deb
http://security.debian.org/pool/updates/main/b/bochs/bochs-term_2.1.1+20041109-3sarge1_sparc.deb
http://security.debian.org/pool/updates/main/b/bochs/bochs-wx_2.1.1+20041109-3sarge1_sparc.deb
http://security.debian.org/pool/updates/main/b/bochs/bochs-x_2.1.1+20041109-3sarge1_sparc.deb
http://security.debian.org/pool/updates/main/b/bochs/bximage_2.1.1+20041109-3sarge1_sparc.deb

Debian Linux 4.0
Source
http://security.debian.org/pool/updates/main/b/bochs/bochs_2.3-2etch1.dsc
http://security.debian.org/pool/updates/main/b/bochs/bochs_2.3-2etch1.diff.gz
http://security.debian.org/pool/updates/main/b/bochs/bochs_2.3.orig.tar.gz
Architecture independent
http://security.debian.org/pool/updates/main/b/bochs/bochs-doc_2.3-2etch1_all.deb
http://security.debian.org/pool/updates/main/b/bochs/bochsbios_2.3-2etch1_all.deb
Alpha
http://security.debian.org/pool/updates/main/b/bochs/bochs_2.3-2etch1_alpha.deb
http://security.debian.org/pool/updates/main/b/bochs/bochs-sdl_2.3-2etch1_alpha.deb
http://security.debian.org/pool/updates/main/b/bochs/bochs-term_2.3-2etch1_alpha.deb
http://security.debian.org/pool/updates/main/b/bochs/bochs-wx_2.3-2etch1_alpha.deb
http://security.debian.org/pool/updates/main/b/bochs/bochs-x_2.3-2etch1_alpha.deb
http://security.debian.org/pool/updates/main/b/bochs/bximage_2.3-2etch1_alpha.deb
AMD64
http://security.debian.org/pool/updates/main/b/bochs/bochs_2.3-2etch1_amd64.deb
http://security.debian.org/pool/updates/main/b/bochs/bochs-sdl_2.3-2etch1_amd64.deb
http://security.debian.org/pool/updates/main/b/bochs/bochs-svga_2.3-2etch1_amd64.deb
http://security.debian.org/pool/updates/main/b/bochs/bochs-term_2.3-2etch1_amd64.deb
http://security.debian.org/pool/updates/main/b/bochs/bochs-wx_2.3-2etch1_amd64.deb
http://security.debian.org/pool/updates/main/b/bochs/bochs-x_2.3-2etch1_amd64.deb
http://security.debian.org/pool/updates/main/b/bochs/bximage_2.3-2etch1_amd64.deb
ARM
http://security.debian.org/pool/updates/main/b/bochs/bochs_2.3-2etch1_arm.deb
http://security.debian.org/pool/updates/main/b/bochs/bochs-sdl_2.3-2etch1_arm.deb
http://security.debian.org/pool/updates/main/b/bochs/bochs-term_2.3-2etch1_arm.deb
http://security.debian.org/pool/updates/main/b/bochs/bochs-wx_2.3-2etch1_arm.deb
http://security.debian.org/pool/updates/main/b/bochs/bochs-x_2.3-2etch1_arm.deb
http://security.debian.org/pool/updates/main/b/bochs/bximage_2.3-2etch1_arm.deb
HP Precision
http://security.debian.org/pool/updates/main/b/bochs/bochs_2.3-2etch1_hppa.deb
http://security.debian.org/pool/updates/main/b/bochs/bochs-sdl_2.3-2etch1_hppa.deb
http://security.debian.org/pool/updates/main/b/bochs/bochs-term_2.3-2etch1_hppa.deb
http://security.debian.org/pool/updates/main/b/bochs/bochs-wx_2.3-2etch1_hppa.deb
http://security.debian.org/pool/updates/main/b/bochs/bochs-x_2.3-2etch1_hppa.deb
http://security.debian.org/pool/updates/main/b/bochs/bximage_2.3-2etch1_hppa.deb
Intel IA-32
http://security.debian.org/pool/updates/main/b/bochs/bochs_2.3-2etch1_i386.deb
http://security.debian.org/pool/updates/main/b/bochs/bochs-sdl_2.3-2etch1_i386.deb
http://security.debian.org/pool/updates/main/b/bochs/bochs-svga_2.3-2etch1_i386.deb
http://security.debian.org/pool/updates/main/b/bochs/bochs-term_2.3-2etch1_i386.deb
http://security.debian.org/pool/updates/main/b/bochs/bochs-wx_2.3-2etch1_i386.deb
http://security.debian.org/pool/updates/main/b/bochs/bochs-x_2.3-2etch1_i386.deb
http://security.debian.org/pool/updates/main/b/bochs/bximage_2.3-2etch1_i386.deb
http://security.debian.org/pool/updates/main/b/bochs/sb16ctrl-bochs_2.3-2etch1_i386.deb
Intel IA-64
http://security.debian.org/pool/updates/main/b/bochs/bochs_2.3-2etch1_ia64.deb
http://security.debian.org/pool/updates/main/b/bochs/bochs-sdl_2.3-2etch1_ia64.deb
http://security.debian.org/pool/updates/main/b/bochs/bochs-term_2.3-2etch1_ia64.deb
http://security.debian.org/pool/updates/main/b/bochs/bochs-wx_2.3-2etch1_ia64.deb
http://security.debian.org/pool/updates/main/b/bochs/bochs-x_2.3-2etch1_ia64.deb
http://security.debian.org/pool/updates/main/b/bochs/bximage_2.3-2etch1_ia64.deb
Big endian MIPS
http://security.debian.org/pool/updates/main/b/bochs/bochs_2.3-2etch1_mips.deb
http://security.debian.org/pool/updates/main/b/bochs/bochs-sdl_2.3-2etch1_mips.deb
http://security.debian.org/pool/updates/main/b/bochs/bochs-term_2.3-2etch1_mips.deb
http://security.debian.org/pool/updates/main/b/bochs/bochs-wx_2.3-2etch1_mips.deb
http://security.debian.org/pool/updates/main/b/bochs/bochs-x_2.3-2etch1_mips.deb
http://security.debian.org/pool/updates/main/b/bochs/bximage_2.3-2etch1_mips.deb
Little endian MIPS
http://security.debian.org/pool/updates/main/b/bochs/bochs_2.3-2etch1_mipsel.deb
http://security.debian.org/pool/updates/main/b/bochs/bochs-sdl_2.3-2etch1_mipsel.deb
http://security.debian.org/pool/updates/main/b/bochs/bochs-term_2.3-2etch1_mipsel.deb
http://security.debian.org/pool/updates/main/b/bochs/bochs-wx_2.3-2etch1_mipsel.deb
http://security.debian.org/pool/updates/main/b/bochs/bochs-x_2.3-2etch1_mipsel.deb
http://security.debian.org/pool/updates/main/b/bochs/bximage_2.3-2etch1_mipsel.deb
PowerPC
http://security.debian.org/pool/updates/main/b/bochs/bochs_2.3-2etch1_powerpc.deb
http://security.debian.org/pool/updates/main/b/bochs/bochs-sdl_2.3-2etch1_powerpc.deb
http://security.debian.org/pool/updates/main/b/bochs/bochs-term_2.3-2etch1_powerpc.deb
http://security.debian.org/pool/updates/main/b/bochs/bochs-wx_2.3-2etch1_powerpc.deb
http://security.debian.org/pool/updates/main/b/bochs/bochs-x_2.3-2etch1_powerpc.deb
http://security.debian.org/pool/updates/main/b/bochs/bximage_2.3-2etch1_powerpc.deb
IBM S/390
http://security.debian.org/pool/updates/main/b/bochs/bochs_2.3-2etch1_s390.deb
http://security.debian.org/pool/updates/main/b/bochs/bochs-sdl_2.3-2etch1_s390.deb
http://security.debian.org/pool/updates/main/b/bochs/bochs-term_2.3-2etch1_s390.deb
http://security.debian.org/pool/updates/main/b/bochs/bochs-wx_2.3-2etch1_s390.deb
http://security.debian.org/pool/updates/main/b/bochs/bochs-x_2.3-2etch1_s390.deb
http://security.debian.org/pool/updates/main/b/bochs/bximage_2.3-2etch1_s390.deb
Sun Sparc
http://security.debian.org/pool/updates/main/b/bochs/bochs_2.3-2etch1_sparc.deb
http://security.debian.org/pool/updates/main/b/bochs/bochs-sdl_2.3-2etch1_sparc.deb
http://security.debian.org/pool/updates/main/b/bochs/bochs-term_2.3-2etch1_sparc.deb
http://security.debian.org/pool/updates/main/b/bochs/bochs-wx_2.3-2etch1_sparc.deb
http://security.debian.org/pool/updates/main/b/bochs/bochs-x_2.3-2etch1_sparc.deb
http://security.debian.org/pool/updates/main/b/bochs/bximage_2.3-2etch1_sparc.deb

Identificadores estándar
Propiedad Valor
CVE CVE-2007-2893
BID 24246

Recursos adicionales
Debian Security Advisory (DSA 1351-)
http://lists.debian.org/debian-security-announce/debian-security-announce-2007/msg00113.html

Histórico de versiones
Versión Comentario Fecha
1.0 Aviso emitido 2007-08-08

Miembros de

CERT
FIRST
TF-CSIRT
EGC Group
UE
Red Nacional de SOC
Foro Nacional de Ciberseguridad
CSIRT.es
Ministerio de Defensa
CNI
CCN
CCN-CERT