int(1809)

Boletines de Vulnerabilidades


Creación insegura de ficheros temporales en CVS

Clasificación de la vulnerabilidad

Propiedad Valor
Nivel de Confianza Oficial
Impacto Integridad
Dificultad Avanzado
Requerimientos del atacante Acceso remoto con cuenta

Información sobre el sistema

Propiedad Valor
Fabricante afectado GNU/Linux
Software afectado CVS <= 1.12.12
GCVS

Descripción

Se ha descubierto una vulnerabilidad en el programa cvsbug, que forma parte de CVS. La vulnerabilidad reside en la creación insegura de archivos temporales.

La explotación de esta vulnerabilidad podría permitir a un atacante local sobrescribir archivos arbitrarios del sistema mediante un ataque de enlace simbólico.

Solución



Actualización de software

Red Hat

Red Hat Desktop (v. 3) / SRPMS
cvs-1.11.2-28.src.rpm

Red Hat Desktop (v. 3) / IA-32
cvs-1.11.2-28.i386.rpm

Red Hat Desktop (v. 3) / x86_64
cvs-1.11.2-28.x86_64.rpm

Red Hat Desktop (v. 4) / SRPMS
cvs-1.11.17-8.RHEL4.src.rpm

Red Hat Desktop (v. 4) / IA-32
cvs-1.11.17-8.RHEL4.i386.rpm

Red Hat Desktop (v. 4) / x86_64
cvs-1.11.17-8.RHEL4.x86_64.rpm

Red Hat Enterprise Linux AS (v. 2.1) / SRPMS
cvs-1.11.1p1-19.src.rpm

Red Hat Enterprise Linux AS (v. 2.1) / IA-32
cvs-1.11.1p1-19.i386.rpm

Red Hat Enterprise Linux AS (v. 2.1) / IA-64
cvs-1.11.1p1-19.ia64.rpm

Red Hat Enterprise Linux AS (v. 3) / SRPMS
cvs-1.11.2-28.src.rpm

Red Hat Enterprise Linux AS (v. 3) / IA-32
cvs-1.11.2-28.i386.rpm

Red Hat Enterprise Linux AS (v. 3) / IA-64
cvs-1.11.2-28.ia64.rpm

Red Hat Enterprise Linux AS (v. 3) / PPC
cvs-1.11.2-28.ppc.rpm

Red Hat Enterprise Linux AS (v. 3) / s390
cvs-1.11.2-28.s390.rpm

Red Hat Enterprise Linux AS (v. 3) / s390x
cvs-1.11.2-28.s390x.rpm

Red Hat Enterprise Linux AS (v. 3) / x86_64
cvs-1.11.2-28.x86_64.rpm

Red Hat Enterprise Linux AS (v. 4) / SRPMS
cvs-1.11.17-8.RHEL4.src.rpm

Red Hat Enterprise Linux AS (v. 4) / IA-32
cvs-1.11.17-8.RHEL4.i386.rpm

Red Hat Enterprise Linux AS (v. 4) / IA-64
cvs-1.11.17-8.RHEL4.ia64.rpm

Red Hat Enterprise Linux AS (v. 4) / PPC
cvs-1.11.17-8.RHEL4.ppc.rpm

Red Hat Enterprise Linux AS (v. 4) / s390
cvs-1.11.17-8.RHEL4.s390.rpm

Red Hat Enterprise Linux AS (v. 4) / s390x
cvs-1.11.17-8.RHEL4.s390x.rpm

Red Hat Enterprise Linux AS (v. 4) / x86_64
cvs-1.11.17-8.RHEL4.x86_64.rpm

Red Hat Enterprise Linux ES (v. 2.1) / SRPMS
cvs-1.11.1p1-19.src.rpm

Red Hat Enterprise Linux ES (v. 2.1) / IA-32
cvs-1.11.1p1-19.i386.rpm

Red Hat Enterprise Linux ES (v. 3) / SRPMS
cvs-1.11.2-28.src.rpm

Red Hat Enterprise Linux ES (v. 3) / IA-32
cvs-1.11.2-28.i386.rpm

Red Hat Enterprise Linux ES (v. 3) / IA-64
cvs-1.11.2-28.ia64.rpm

Red Hat Enterprise Linux ES (v. 3) / x86_64
cvs-1.11.2-28.x86_64.rpm

Red Hat Enterprise Linux ES (v. 4) / SRPMS
cvs-1.11.17-8.RHEL4.src.rpm

Red Hat Enterprise Linux ES (v. 4) / IA-32
cvs-1.11.17-8.RHEL4.i386.rpm

Red Hat Enterprise Linux ES (v. 4) / IA-64
cvs-1.11.17-8.RHEL4.ia64.rpm

Red Hat Enterprise Linux ES (v. 4) / x86_64
cvs-1.11.17-8.RHEL4.x86_64.rpm

Red Hat Enterprise Linux WS (v. 2.1) / SRPMS
cvs-1.11.1p1-19.src.rpm

Red Hat Enterprise Linux WS (v. 2.1) / IA-32
cvs-1.11.1p1-19.i386.rpm

Red Hat Enterprise Linux WS (v. 3) / SRPMS
cvs-1.11.2-28.src.rpm

Red Hat Enterprise Linux WS (v. 3) / IA-32
cvs-1.11.2-28.i386.rpm

Red Hat Enterprise Linux WS (v. 3) / IA-64
cvs-1.11.2-28.ia64.rpm

Red Hat Enterprise Linux WS (v. 3) / x86_64
cvs-1.11.2-28.x86_64.rpm

Red Hat Enterprise Linux WS (v. 4) / SRPMS
cvs-1.11.17-8.RHEL4.src.rpm

Red Hat Enterprise Linux WS (v. 4) / IA-32
cvs-1.11.17-8.RHEL4.i386.rpm

Red Hat Enterprise Linux WS (v. 4) / IA-64
cvs-1.11.17-8.RHEL4.ia64.rpm

Red Hat Enterprise Linux WS (v. 4) / x86_64
cvs-1.11.17-8.RHEL4.x86_64.rpm

Red Hat Linux Advanced Workstation 2.1 for the Itanium Processor / SRPMS
cvs-1.11.1p1-19.src.rpm

Red Hat Linux Advanced Workstation 2.1 for the Itanium Processor / IA-64
cvs-1.11.1p1-19.ia64.rpm

Debian

Debian Linux 3.0
Source
http://security.debian.org/pool/updates/main/c/cvs/cvs_1.11.1p1debian-13.dsc
http://security.debian.org/pool/updates/main/c/cvs/cvs_1.11.1p1debian-13.diff.gz
http://security.debian.org/pool/updates/main/c/cvs/cvs_1.11.1p1debian.orig.tar.gz
Alpha
http://security.debian.org/pool/updates/main/c/cvs/cvs_1.11.1p1debian-13_alpha.deb
ARM
http://security.debian.org/pool/updates/main/c/cvs/cvs_1.11.1p1debian-13_arm.deb
Intel IA-32
http://security.debian.org/pool/updates/main/c/cvs/cvs_1.11.1p1debian-13_i386.deb
Intel IA-64
http://security.debian.org/pool/updates/main/c/cvs/cvs_1.11.1p1debian-13_ia64.deb
HP Precision
http://security.debian.org/pool/updates/main/c/cvs/cvs_1.11.1p1debian-13_hppa.deb
Motorola 680x0
http://security.debian.org/pool/updates/main/c/cvs/cvs_1.11.1p1debian-13_m68k.deb
Big endian MIPS
http://security.debian.org/pool/updates/main/c/cvs/cvs_1.11.1p1debian-13_mips.deb
Little endian MIPS
http://security.debian.org/pool/updates/main/c/cvs/cvs_1.11.1p1debian-13_mipsel.deb
PowerPC
http://security.debian.org/pool/updates/main/c/cvs/cvs_1.11.1p1debian-13_powerpc.deb
IBM S/390
http://security.debian.org/pool/updates/main/c/cvs/cvs_1.11.1p1debian-13_s390.deb
Sun Sparc
http://security.debian.org/pool/updates/main/c/cvs/cvs_1.11.1p1debian-13_sparc.deb

Debian Linux 3.1
Source
http://security.debian.org/pool/updates/main/g/gcvs/gcvs_1.0final-5sarge1.dsc
http://security.debian.org/pool/updates/main/g/gcvs/gcvs_1.0final-5sarge1.diff.gz
http://security.debian.org/pool/updates/main/g/gcvs/gcvs_1.0final.orig.tar.gz
Alpha
http://security.debian.org/pool/updates/main/g/gcvs/gcvs_1.0final-5sarge1_alpha.deb
AMD64
http://security.debian.org/pool/updates/main/g/gcvs/gcvs_1.0final-5sarge1_amd64.deb
ARM
http://security.debian.org/pool/updates/main/g/gcvs/gcvs_1.0final-5sarge1_arm.deb
Intel IA-32
http://security.debian.org/pool/updates/main/g/gcvs/gcvs_1.0final-5sarge1_i386.deb
Intel IA-64
http://security.debian.org/pool/updates/main/g/gcvs/gcvs_1.0final-5sarge1_ia64.deb
HP Precision
http://security.debian.org/pool/updates/main/g/gcvs/gcvs_1.0final-5sarge1_hppa.deb
Motorola 680x0
http://security.debian.org/pool/updates/main/g/gcvs/gcvs_1.0final-5sarge1_m68k.deb
Big endian MIPS
http://security.debian.org/pool/updates/main/g/gcvs/gcvs_1.0final-5sarge1_mips.deb
Little endian MIPS
http://security.debian.org/pool/updates/main/g/gcvs/gcvs_1.0final-5sarge1_mipsel.deb
PowerPC
http://security.debian.org/pool/updates/main/g/gcvs/gcvs_1.0final-5sarge1_powerpc.deb
IBM S/390
http://security.debian.org/pool/updates/main/g/gcvs/gcvs_1.0final-5sarge1_s390.deb
Sun Sparc
http://security.debian.org/pool/updates/main/g/gcvs/gcvs_1.0final-5sarge1_sparc.deb

FreeBSD
FreeBSD 4.10
ftp://ftp.FreeBSD.org/pub/FreeBSD/CERT/patches/SA-05:20/cvsbug410.patch
FreeBSD 4.11
ftp://ftp.FreeBSD.org/pub/FreeBSD/CERT/patches/SA-05:20/cvsbug.patch
FreeBSD 5.3
ftp://ftp.FreeBSD.org/pub/FreeBSD/CERT/patches/SA-05:20/cvsbug53.patch
FreeBSD 5.4
ftp://ftp.FreeBSD.org/pub/FreeBSD/CERT/patches/SA-05:20/cvsbug.patch

SGI
SGI ProPack 3 Service Pack 6 Parche 10212
http://support.sgi.com/

NetBSD

NetBSD 1.6, 1.6.1, 1.6.2, 2.0, 2.0.2
Instalar Parches o actualizar a NetBSD 2.1 o 2.0.3
http://www.netbsd.org

Identificadores estándar

Propiedad Valor
CVE CAN-2005-2693
BID

Recursos adicionales

Red Hat Security Advisory (RHSA-2005:756-3)
https://rhn.redhat.com/errata/RHSA-2005-756.html

Debian Security Advisory (DSA 802-1)
http://lists.debian.org/debian-security-announce/debian-security-announce-2005/msg00192.html

Debian Security Advisory (DSA 806-1)
http://lists.debian.org/debian-security-announce/debian-security-announce-2005/msg00196.html

FreeBSD Security Announcement (FreeBSD-SA-05:20)
ftp://ftp.freebsd.org/pub/FreeBSD/CERT/advisories/FreeBSD-SA-05:20.cvsbug.asc

SGI Security advisory (20050901-01-U)
ftp://patches.sgi.com/support/free/security/advisories/20050901-01-U.asc

NetBSD Security Advisory (2005-006)
ftp://ftp.netbsd.org/pub/NetBSD/security/advisories/NetBSD-SA2005-006.txt.asc

Histórico de versiones

Versión Comentario Fecha
1.0 Aviso emitido 2005-09-08
1.1 Aviso emitido por Debian (DSA 806-1) 2005-09-14
1.2 Aviso emitido por FreeBSD (FreeBSD-SA-05:20). Aviso emitido por SGI (20050901-01-U) 2005-09-16
1.3 Aviso emitido por NetBSD (2005-006) 2005-11-08

Miembros de

Ministerio de Defensa
CNI
CCN
CCN-CERT