Miembros de
Boletines de Vulnerabilidades |
Condición de carrera en bzip2 |
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Clasificación de la vulnerabilidad |
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| Propiedad | Valor |
| Nivel de Confianza | Oficial |
| Impacto | Integridad |
| Dificultad | Experto |
| Requerimientos del atacante | Acceso remoto con cuenta |
Información sobre el sistema |
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| Propiedad | Valor |
| Fabricante afectado | GNU/Linux |
| Software afectado | bzip2 |
Descripción |
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Se ha descubierto una condición de carrera en bzip2. La vulnerabilidad se da en bunzip2, comando utilizado para la descompresión de archivos, y reside en que esta utilidad cambia los permisos de los archivos de forma insegura una vez se ha completado el proceso de descompresión. La explotación de esta vulnerabilidad podría permitir a un atacante local modificar los permisos de archivos arbitrarios del sistema mediante un ataque de "hard link" contra un archivo que se esta descomprimiendo con bunzip2. |
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Solución |
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Actualización de software Mandriva Linux Mandrakelinux 10.0 x86 ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/10.0/RPMS/bzip2-1.0.2-17.1.100mdk.i586.rpm ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/10.0/RPMS/libbzip2_1-1.0.2-17.1.100mdk.i586.rpm ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/10.0/RPMS/libbzip2_1-devel-1.0.2-17.1.100mdk.i586.rpm ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/10.0/SRPMS/bzip2-1.0.2-17.1.100mdk.src.rpm AMD64 ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/amd64/10.0/RPMS/bzip2-1.0.2-17.1.100mdk.amd64.rpm ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/amd64/10.0/RPMS/lib64bzip2_1-1.0.2-17.1.100mdk.amd64.rpm ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/amd64/10.0/RPMS/lib64bzip2_1-devel-1.0.2-17.1.100mdk.amd64.rpm ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/amd64/10.0/SRPMS/bzip2-1.0.2-17.1.100mdk.src.rpm Mandrakelinux 10.1 X86 ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/10.1/RPMS/bzip2-1.0.2-20.4.101mdk.i586.rpm ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/10.1/RPMS/libbzip2_1-1.0.2-20.4.101mdk.i586.rpm ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/10.1/RPMS/libbzip2_1-devel-1.0.2-20.4.101mdk.i586.rpm ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/10.1/SRPMS/bzip2-1.0.2-20.4.101mdk.src.rpm X86_64 ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/x86_64/10.1/RPMS/bzip2-1.0.2-20.4.101mdk.x86_64.rpm ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/x86_64/10.1/RPMS/lib64bzip2_1-1.0.2-20.4.101mdk.x86_64.rpm ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/x86_64/10.1/RPMS/lib64bzip2_1-devel-1.0.2-20.4.101mdk.x86_64.rpm ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/x86_64/10.1/SRPMS/bzip2-1.0.2-20.4.101mdk.src.rpm Corporate Server 2.1 X86 ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/corporate/2.1/RPMS/bzip2-1.0.2-10.4.C21mdk.i586.rpm ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/corporate/2.1/RPMS/libbzip2_1-1.0.2-10.4.C21mdk.i586.rpm ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/corporate/2.1/RPMS/libbzip2_1-devel-1.0.2-10.4.C21mdk.i586.rpm ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/corporate/2.1/SRPMS/bzip2-1.0.2-10.4.C21mdk.src.rpm X86_64 ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/x86_64/corporate/2.1/RPMS/bzip2-1.0.2-10.4.C21mdk.x86_64.rpm ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/x86_64/corporate/2.1/RPMS/libbzip2_1-1.0.2-10.4.C21mdk.x86_64.rpm ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/x86_64/corporate/2.1/RPMS/libbzip2_1-devel-1.0.2-10.4.C21mdk.x86_64.rpm ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/x86_64/corporate/2.1/SRPMS/bzip2-1.0.2-10.4.C21mdk.src.rpm Corporate Server 3.0 X86 ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/corporate/3.0/RPMS/bzip2-1.0.2-17.4.C30mdk.i586.rpm ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/corporate/3.0/RPMS/libbzip2_1-1.0.2-17.4.C30mdk.i586.rpm ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/corporate/3.0/RPMS/libbzip2_1-devel-1.0.2-17.4.C30mdk.i586.rpm ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/corporate/3.0/SRPMS/bzip2-1.0.2-17.4.C30mdk.src.rpm X86_64 ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/x86_64/corporate/3.0/RPMS/bzip2-1.0.2-17.4.C30mdk.x86_64.rpm ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/x86_64/corporate/3.0/RPMS/lib64bzip2_1-1.0.2-17.4.C30mdk.x86_64.rpm ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/x86_64/corporate/3.0/RPMS/lib64bzip2_1-devel-1.0.2-17.4.C30mdk.x86_64.rpm ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/x86_64/corporate/3.0/SRPMS/bzip2-1.0.2-17.4.C30mdk.src.rpm Multi Network Firewall 2.0 X86 ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/mnf/2.0/RPMS/bzip2-1.0.2-17.4.M20mdk.i586.rpm ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/mnf/2.0/RPMS/libbzip2_1-1.0.2-17.4.M20mdk.i586.rpm ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/mnf/2.0/RPMS/libbzip2_1-devel-1.0.2-17.4.M20mdk.i586.rpm ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/mnf/2.0/SRPMS/bzip2-1.0.2-17.4.M20mdk.src.rpm Mandrivalinux LE2005 X86 ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/10.2/RPMS/bzip2-1.0.2-20.3.102mdk.i586.rpm ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/10.2/RPMS/libbzip2_1-1.0.2-20.3.102mdk.i586.rpm ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/10.2/RPMS/libbzip2_1-devel-1.0.2-20.3.102mdk.i586.rpm ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/10.2/SRPMS/bzip2-1.0.2-20.3.102mdk.src.rpm X86_64 ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/x86_64/10.2/RPMS/bzip2-1.0.2-20.3.102mdk.x86_64.rpm ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/x86_64/10.2/RPMS/lib64bzip2_1-1.0.2-20.3.102mdk.x86_64.rpm ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/x86_64/10.2/RPMS/lib64bzip2_1-devel-1.0.2-20.3.102mdk.x86_64.rpm ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/x86_64/10.2/SRPMS/bzip2-1.0.2-20.3.102mdk.src.rpm Mandrivalinux 2006 X86 ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/2006.0/RPMS/bzip2-1.0.3-1.2.20060mdk.i586.rpm ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/2006.0/RPMS/libbzip2_1-1.0.3-1.2.20060mdk.i586.rpm ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/2006.0/RPMS/libbzip2_1-devel-1.0.3-1.2.20060mdk.i586.rpm ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/2006.0/SRPMS/bzip2-1.0.3-1.2.20060mdk.src.rpm X86_64 ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/x86_64/2006.0/RPMS/bzip2-1.0.3-1.2.20060mdk.x86_64.rpm ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/x86_64/2006.0/RPMS/lib64bzip2_1-1.0.3-1.2.20060mdk.x86_64.rpm ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/x86_64/2006.0/RPMS/lib64bzip2_1-devel-1.0.3-1.2.20060mdk.x86_64.rpm ftp://ftp.ps.pl/mirrors/Mandrakelinux/official/updates/x86_64/2006.0/SRPMS/bzip2-1.0.3-1.2.20060mdk.src.rpm Debian Linux Debian Linux 3.0 Source http://security.debian.org/pool/updates/main/b/bzip2/bzip2_1.0.2-1.woody2.dsc http://security.debian.org/pool/updates/main/b/bzip2/bzip2_1.0.2-1.woody2.diff.gz http://security.debian.org/pool/updates/main/b/bzip2/bzip2_1.0.2.orig.tar.gz Alpha http://security.debian.org/pool/updates/main/b/bzip2/bzip2_1.0.2-1.woody2_alpha.deb http://security.debian.org/pool/updates/main/b/bzip2/libbz2-1.0_1.0.2-1.woody2_alpha.deb http://security.debian.org/pool/updates/main/b/bzip2/libbz2-dev_1.0.2-1.woody2_alpha.deb ARM http://security.debian.org/pool/updates/main/b/bzip2/bzip2_1.0.2-1.woody2_arm.deb http://security.debian.org/pool/updates/main/b/bzip2/libbz2-1.0_1.0.2-1.woody2_arm.deb http://security.debian.org/pool/updates/main/b/bzip2/libbz2-dev_1.0.2-1.woody2_arm.deb Intel IA-32 http://security.debian.org/pool/updates/main/b/bzip2/bzip2_1.0.2-1.woody2_i386.deb http://security.debian.org/pool/updates/main/b/bzip2/libbz2-1.0_1.0.2-1.woody2_i386.deb http://security.debian.org/pool/updates/main/b/bzip2/libbz2-dev_1.0.2-1.woody2_i386.deb Intel IA-64 http://security.debian.org/pool/updates/main/b/bzip2/bzip2_1.0.2-1.woody2_ia64.deb http://security.debian.org/pool/updates/main/b/bzip2/libbz2-1.0_1.0.2-1.woody2_ia64.deb http://security.debian.org/pool/updates/main/b/bzip2/libbz2-dev_1.0.2-1.woody2_ia64.deb HP Precision http://security.debian.org/pool/updates/main/b/bzip2/bzip2_1.0.2-1.woody2_hppa.deb http://security.debian.org/pool/updates/main/b/bzip2/libbz2-1.0_1.0.2-1.woody2_hppa.deb http://security.debian.org/pool/updates/main/b/bzip2/libbz2-dev_1.0.2-1.woody2_hppa.deb Motorola 680x0 http://security.debian.org/pool/updates/main/b/bzip2/bzip2_1.0.2-1.woody2_m68k.deb http://security.debian.org/pool/updates/main/b/bzip2/libbz2-1.0_1.0.2-1.woody2_m68k.deb http://security.debian.org/pool/updates/main/b/bzip2/libbz2-dev_1.0.2-1.woody2_m68k.deb Big endian MIPS http://security.debian.org/pool/updates/main/b/bzip2/bzip2_1.0.2-1.woody2_mips.deb http://security.debian.org/pool/updates/main/b/bzip2/libbz2-1.0_1.0.2-1.woody2_mips.deb http://security.debian.org/pool/updates/main/b/bzip2/libbz2-dev_1.0.2-1.woody2_mips.deb Little endian MIPS http://security.debian.org/pool/updates/main/b/bzip2/bzip2_1.0.2-1.woody2_mipsel.deb http://security.debian.org/pool/updates/main/b/bzip2/libbz2-1.0_1.0.2-1.woody2_mipsel.deb http://security.debian.org/pool/updates/main/b/bzip2/libbz2-dev_1.0.2-1.woody2_mipsel.deb PowerPC http://security.debian.org/pool/updates/main/b/bzip2/bzip2_1.0.2-1.woody2_powerpc.deb http://security.debian.org/pool/updates/main/b/bzip2/libbz2-1.0_1.0.2-1.woody2_powerpc.deb http://security.debian.org/pool/updates/main/b/bzip2/libbz2-dev_1.0.2-1.woody2_powerpc.deb IBM S/390 http://security.debian.org/pool/updates/main/b/bzip2/bzip2_1.0.2-1.woody2_s390.deb http://security.debian.org/pool/updates/main/b/bzip2/libbz2-1.0_1.0.2-1.woody2_s390.deb http://security.debian.org/pool/updates/main/b/bzip2/libbz2-dev_1.0.2-1.woody2_s390.deb Sun Sparc http://security.debian.org/pool/updates/main/b/bzip2/bzip2_1.0.2-1.woody2_sparc.deb http://security.debian.org/pool/updates/main/b/bzip2/libbz2-1.0_1.0.2-1.woody2_sparc.deb http://security.debian.org/pool/updates/main/b/bzip2/libbz2-dev_1.0.2-1.woody2_sparc.deb Red Hat Linux (bzip2) Red Hat Desktop (v. 3) Red Hat Desktop (v. 4) Red Hat Enterprise Linux AS (v. 2.1) Red Hat Enterprise Linux AS (v. 3) Red Hat Enterprise Linux AS (v. 4) Red Hat Enterprise Linux ES (v. 2.1) Red Hat Enterprise Linux ES (v. 3) Red Hat Enterprise Linux ES (v. 4) Red Hat Enterprise Linux WS (v. 2.1) Red Hat Enterprise Linux WS (v. 3) Red Hat Enterprise Linux WS (v. 4) Red Hat Linux Advanced Workstation 2.1 Itanium Processor https://rhn.redhat.com/ FreeBSD FreeBSD 4.10 FreeBSD 4.11 FreeBSD 5.3 FreeBSD 5.4 ftp://ftp.FreeBSD.org/pub/FreeBSD/CERT/patches/SA-05:14/bzip2.patch SGI Advanced Linux Environment 3 / RPM / Patch 10279 ftp://oss.sgi.com/projects/sgi_propack/download/3/updates/RPMS Advanced Linux Environment 3 / SRPM / Patch 10279 ftp://oss.sgi.com/projects/sgi_propack/download/3/updates/SRPMS |
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Identificadores estándar |
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| Propiedad | Valor |
| CVE | CAN-2005-0953 |
| BID | |
Recursos adicionales |
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Mandriva Security Advisories MDKSA-2005:091 http://www.mandriva.com/security/advisories?name=MDKSA-2005:091 Mandriva Security Advisory (MDKSA-2006:026) http://wwwnew.mandriva.com/security/advisories?name=MDKSA-2006:026 Debian Security Advisory DSA 730-1 http://lists.debian.org/debian-security-announce/debian-security-announce-2005/msg00114.html Red Hat Security Advisory (RHSA-2005:474-21) https://rhn.redhat.com/errata/RHSA-2005-474.html FreeBSD Security Advisory FreeBSD-SA-05:14.bzip2 ftp://ftp.freebsd.org/pub/FreeBSD/CERT/advisories/FreeBSD-SA-05:14.bzip2.asc SGI Security Advisory (20060301-01-U) ftp://patches.sgi.com/support/free/security/advisories/20060301-01.U.asc |
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Histórico de versiones |
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| Versión | Comentario | Fecha |
| 1.0 | Aviso emitido | 2005-05-19 |
| 1.1 | Aviso emitido por Debian (DSA 730-1) | 2005-05-30 |
| 1.2 | Aviso emitido por Red Hat (RHSA-2005:474-15) | 2005-06-17 |
| 1.3 | Aviso emitido por FreeBSD (FreeBSD-SA-05:14.bzip2) | 2005-06-30 |
| 1.4 | Aviso emitido por Mandriva (MDKSA-2006:026) | 2006-01-31 |
| 1.5 | Aviso emitido por Red Hat (RHSA-2005:474-21) | 2006-02-14 |
| 1.6 | Aviso emitido por SGI (20060301-01-U) | 2006-03-10 |