Vulnerability Bulletins |
Suplantación de campos DN de certificados X.509 en GnuTLS |
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Vulnerability classification |
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| Property | Value |
| Confidence level | Oficial |
| Impact | Confidencialidad |
| Dificulty | Experto |
| Required attacker level | Acceso remoto sin cuenta a un servicio estandar |
System information |
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| Property | Value |
| Affected manufacturer | GNU/Linux |
| Affected software | GnuTLS < 2.6.1 |
Description |
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Se ha descubierto una vulnerabilidad en GnuTLS 2.6. La vulnerabilidad reside en un error en la cadena de validación de certificados en la función "_gnutls_x509_verify_certificate" en "lib/x509/verify.c". Un atacante remoto podría suplantar el campo Distinguished Name (DN) de un certificado autofirmado mediante un ataque de hombre en el medio. |
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Solution |
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Actualización de software Red Hat (RHSA-2008:0982-7) RHEL Desktop Workstation (v. 5 cliente) Red Hat Enterprise Linux (v. 5 servidor) Red Hat Enterprise Linux Desktop (v. 5 cliente) https://rhn.redhat.com/ Suse Linux Las actualizaciones pueden descargarse mediante YAST o del servidor FTP oficial de Suse Linux. Debian (DSA-1719-2) Debian Linux 5.0 Source http://security.debian.org/pool/updates/main/g/gnutls13/gnutls13_1.4.4.orig.tar.gz http://security.debian.org/pool/updates/main/g/gnutls13/gnutls13_1.4.4-3+etch4.diff.gz http://security.debian.org/pool/updates/main/g/gnutls13/gnutls13_1.4.4-3+etch4.dsc Arquitectura independiente: http://security.debian.org/pool/updates/main/g/gnutls13/gnutls-doc_1.4.4-3+etch4_all.deb amd64 (AMD x86_64 (AMD64)) http://security.debian.org/pool/updates/main/g/gnutls13/libgnutls-dev_1.4.4-3+etch4_amd64.deb http://security.debian.org/pool/updates/main/g/gnutls13/libgnutls13_1.4.4-3+etch4_amd64.deb http://security.debian.org/pool/updates/main/g/gnutls13/gnutls-bin_1.4.4-3+etch4_amd64.deb http://security.debian.org/pool/updates/main/g/gnutls13/libgnutls13-dbg_1.4.4-3+etch4_amd64.deb arm (ARM) http://security.debian.org/pool/updates/main/g/gnutls13/libgnutls-dev_1.4.4-3+etch4_arm.deb http://security.debian.org/pool/updates/main/g/gnutls13/libgnutls13_1.4.4-3+etch4_arm.deb http://security.debian.org/pool/updates/main/g/gnutls13/libgnutls13-dbg_1.4.4-3+etch4_arm.deb http://security.debian.org/pool/updates/main/g/gnutls13/gnutls-bin_1.4.4-3+etch4_arm.deb i386 (Intel ia32) http://security.debian.org/pool/updates/main/g/gnutls13/libgnutls13-dbg_1.4.4-3+etch4_i386.deb http://security.debian.org/pool/updates/main/g/gnutls13/libgnutls13_1.4.4-3+etch4_i386.deb http://security.debian.org/pool/updates/main/g/gnutls13/gnutls-bin_1.4.4-3+etch4_i386.deb http://security.debian.org/pool/updates/main/g/gnutls13/libgnutls-dev_1.4.4-3+etch4_i386.deb ia64 (Intel ia64) http://security.debian.org/pool/updates/main/g/gnutls13/gnutls-bin_1.4.4-3+etch4_ia64.deb http://security.debian.org/pool/updates/main/g/gnutls13/libgnutls-dev_1.4.4-3+etch4_ia64.deb http://security.debian.org/pool/updates/main/g/gnutls13/libgnutls13_1.4.4-3+etch4_ia64.deb http://security.debian.org/pool/updates/main/g/gnutls13/libgnutls13-dbg_1.4.4-3+etch4_ia64.deb mips (MIPS (Big Endian)) http://security.debian.org/pool/updates/main/g/gnutls13/libgnutls-dev_1.4.4-3+etch4_mips.deb http://security.debian.org/pool/updates/main/g/gnutls13/gnutls-bin_1.4.4-3+etch4_mips.deb http://security.debian.org/pool/updates/main/g/gnutls13/libgnutls13_1.4.4-3+etch4_mips.deb http://security.debian.org/pool/updates/main/g/gnutls13/libgnutls13-dbg_1.4.4-3+etch4_mips.deb mipsel (MIPS (Little Endian)) http://security.debian.org/pool/updates/main/g/gnutls13/libgnutls13_1.4.4-3+etch4_mipsel.deb http://security.debian.org/pool/updates/main/g/gnutls13/gnutls-bin_1.4.4-3+etch4_mipsel.deb http://security.debian.org/pool/updates/main/g/gnutls13/libgnutls-dev_1.4.4-3+etch4_mipsel.deb http://security.debian.org/pool/updates/main/g/gnutls13/libgnutls13-dbg_1.4.4-3+etch4_mipsel.deb powerpc (PowerPC) http://security.debian.org/pool/updates/main/g/gnutls13/gnutls-bin_1.4.4-3+etch4_powerpc.deb http://security.debian.org/pool/updates/main/g/gnutls13/libgnutls13-dbg_1.4.4-3+etch4_powerpc.deb http://security.debian.org/pool/updates/main/g/gnutls13/libgnutls13_1.4.4-3+etch4_powerpc.deb http://security.debian.org/pool/updates/main/g/gnutls13/libgnutls-dev_1.4.4-3+etch4_powerpc.deb s390 (IBM S/390) http://security.debian.org/pool/updates/main/g/gnutls13/gnutls-bin_1.4.4-3+etch4_s390.deb http://security.debian.org/pool/updates/main/g/gnutls13/libgnutls13_1.4.4-3+etch4_s390.deb http://security.debian.org/pool/updates/main/g/gnutls13/libgnutls13-dbg_1.4.4-3+etch4_s390.deb http://security.debian.org/pool/updates/main/g/gnutls13/libgnutls-dev_1.4.4-3+etch4_s390.deb sparc (Sun SPARC/UltraSPARC) http://security.debian.org/pool/updates/main/g/gnutls13/libgnutls13-dbg_1.4.4-3+etch4_sparc.deb http://security.debian.org/pool/updates/main/g/gnutls13/gnutls-bin_1.4.4-3+etch4_sparc.deb http://security.debian.org/pool/updates/main/g/gnutls13/libgnutls13_1.4.4-3+etch4_sparc.deb http://security.debian.org/pool/updates/main/g/gnutls13/libgnutls-dev_1.4.4-3+etch4_sparc.deb Debian (DSA-1719-2) Debian Linux 4.0 Source http://security.debian.org/pool/updates/main/g/gnutls26/gnutls26_2.4.2-6+lenny1.diff.gz http://security.debian.org/pool/updates/main/g/gnutls26/gnutls26_2.4.2-6+lenny1.dsc http://security.debian.org/pool/updates/main/g/gnutls26/gnutls26_2.4.2.orig.tar.gz Arquitectura independiente: http://security.debian.org/pool/updates/main/g/gnutls26/gnutls-doc_2.4.2-6+lenny1_all.deb alpha (DEC Alpha) http://security.debian.org/pool/updates/main/g/gnutls26/libgnutls-dev_2.4.2-6+lenny1_alpha.deb http://security.debian.org/pool/updates/main/g/gnutls26/libgnutls26_2.4.2-6+lenny1_alpha.deb http://security.debian.org/pool/updates/main/g/gnutls26/gnutls-bin_2.4.2-6+lenny1_alpha.deb http://security.debian.org/pool/updates/main/g/gnutls26/libgnutls26-dbg_2.4.2-6+lenny1_alpha.deb http://security.debian.org/pool/updates/main/g/gnutls26/guile-gnutls_2.4.2-6+lenny1_alpha.deb amd64 (AMD x86_64 (AMD64)) http://security.debian.org/pool/updates/main/g/gnutls26/gnutls-bin_2.4.2-6+lenny1_amd64.deb http://security.debian.org/pool/updates/main/g/gnutls26/guile-gnutls_2.4.2-6+lenny1_amd64.deb http://security.debian.org/pool/updates/main/g/gnutls26/libgnutls26-dbg_2.4.2-6+lenny1_amd64.deb http://security.debian.org/pool/updates/main/g/gnutls26/libgnutls-dev_2.4.2-6+lenny1_amd64.deb http://security.debian.org/pool/updates/main/g/gnutls26/libgnutls26_2.4.2-6+lenny1_amd64.deb arm (ARM) http://security.debian.org/pool/updates/main/g/gnutls26/libgnutls-dev_2.4.2-6+lenny1_arm.deb http://security.debian.org/pool/updates/main/g/gnutls26/gnutls-bin_2.4.2-6+lenny1_arm.deb http://security.debian.org/pool/updates/main/g/gnutls26/libgnutls26-dbg_2.4.2-6+lenny1_arm.deb http://security.debian.org/pool/updates/main/g/gnutls26/libgnutls26_2.4.2-6+lenny1_arm.deb http://security.debian.org/pool/updates/main/g/gnutls26/guile-gnutls_2.4.2-6+lenny1_arm.deb armel (ARM EABI) http://security.debian.org/pool/updates/main/g/gnutls26/guile-gnutls_2.4.2-6+lenny1_armel.deb http://security.debian.org/pool/updates/main/g/gnutls26/libgnutls26_2.4.2-6+lenny1_armel.deb http://security.debian.org/pool/updates/main/g/gnutls26/libgnutls26-dbg_2.4.2-6+lenny1_armel.deb http://security.debian.org/pool/updates/main/g/gnutls26/libgnutls-dev_2.4.2-6+lenny1_armel.deb http://security.debian.org/pool/updates/main/g/gnutls26/gnutls-bin_2.4.2-6+lenny1_armel.deb i386 (Intel ia32) http://security.debian.org/pool/updates/main/g/gnutls26/libgnutls26-dbg_2.4.2-6+lenny1_i386.deb http://security.debian.org/pool/updates/main/g/gnutls26/libgnutls-dev_2.4.2-6+lenny1_i386.deb http://security.debian.org/pool/updates/main/g/gnutls26/libgnutls26_2.4.2-6+lenny1_i386.deb http://security.debian.org/pool/updates/main/g/gnutls26/guile-gnutls_2.4.2-6+lenny1_i386.deb http://security.debian.org/pool/updates/main/g/gnutls26/gnutls-bin_2.4.2-6+lenny1_i386.deb ia64 (Intel ia64) http://security.debian.org/pool/updates/main/g/gnutls26/libgnutls-dev_2.4.2-6+lenny1_ia64.deb http://security.debian.org/pool/updates/main/g/gnutls26/libgnutls26-dbg_2.4.2-6+lenny1_ia64.deb http://security.debian.org/pool/updates/main/g/gnutls26/gnutls-bin_2.4.2-6+lenny1_ia64.deb http://security.debian.org/pool/updates/main/g/gnutls26/libgnutls26_2.4.2-6+lenny1_ia64.deb mips (MIPS (Big Endian)) http://security.debian.org/pool/updates/main/g/gnutls26/libgnutls26_2.4.2-6+lenny1_mips.deb http://security.debian.org/pool/updates/main/g/gnutls26/guile-gnutls_2.4.2-6+lenny1_mips.deb http://security.debian.org/pool/updates/main/g/gnutls26/libgnutls-dev_2.4.2-6+lenny1_mips.deb http://security.debian.org/pool/updates/main/g/gnutls26/libgnutls26-dbg_2.4.2-6+lenny1_mips.deb http://security.debian.org/pool/updates/main/g/gnutls26/gnutls-bin_2.4.2-6+lenny1_mips.deb mipsel (MIPS (Little Endian)) http://security.debian.org/pool/updates/main/g/gnutls26/gnutls-bin_2.4.2-6+lenny1_mipsel.deb http://security.debian.org/pool/updates/main/g/gnutls26/libgnutls26-dbg_2.4.2-6+lenny1_mipsel.deb http://security.debian.org/pool/updates/main/g/gnutls26/libgnutls-dev_2.4.2-6+lenny1_mipsel.deb http://security.debian.org/pool/updates/main/g/gnutls26/guile-gnutls_2.4.2-6+lenny1_mipsel.deb http://security.debian.org/pool/updates/main/g/gnutls26/libgnutls26_2.4.2-6+lenny1_mipsel.deb powerpc (PowerPC) http://security.debian.org/pool/updates/main/g/gnutls26/libgnutls26_2.4.2-6+lenny1_powerpc.deb http://security.debian.org/pool/updates/main/g/gnutls26/guile-gnutls_2.4.2-6+lenny1_powerpc.deb http://security.debian.org/pool/updates/main/g/gnutls26/libgnutls26-dbg_2.4.2-6+lenny1_powerpc.deb http://security.debian.org/pool/updates/main/g/gnutls26/gnutls-bin_2.4.2-6+lenny1_powerpc.deb http://security.debian.org/pool/updates/main/g/gnutls26/libgnutls-dev_2.4.2-6+lenny1_powerpc.deb s390 (IBM S/390) http://security.debian.org/pool/updates/main/g/gnutls26/libgnutls-dev_2.4.2-6+lenny1_s390.deb http://security.debian.org/pool/updates/main/g/gnutls26/gnutls-bin_2.4.2-6+lenny1_s390.deb http://security.debian.org/pool/updates/main/g/gnutls26/libgnutls26-dbg_2.4.2-6+lenny1_s390.deb http://security.debian.org/pool/updates/main/g/gnutls26/guile-gnutls_2.4.2-6+lenny1_s390.deb http://security.debian.org/pool/updates/main/g/gnutls26/libgnutls26_2.4.2-6+lenny1_s390.deb sparc (Sun SPARC/UltraSPARC) http://security.debian.org/pool/updates/main/g/gnutls26/gnutls-bin_2.4.2-6+lenny1_sparc.deb http://security.debian.org/pool/updates/main/g/gnutls26/guile-gnutls_2.4.2-6+lenny1_sparc.deb http://security.debian.org/pool/updates/main/g/gnutls26/libgnutls-dev_2.4.2-6+lenny1_sparc.deb http://security.debian.org/pool/updates/main/g/gnutls26/libgnutls26_2.4.2-6+lenny1_sparc.deb http://security.debian.org/pool/updates/main/g/gnutls26/libgnutls26-dbg_2.4.2-6+lenny1_sparc.deb Suse Linux Las actualizaciones pueden descargarse mediante YAST o del servidor FTP oficial de Suse Linux. |
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Standar resources |
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| Property | Value |
| CVE | CVE-2008-4989 |
| BID | 32232 |
Other resources |
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Red Hat Security Advisory (RHSA-2008:0982-7) https://rhn.redhat.com/errata/RHSA-2008-0982.html SUSE Security Advisory (SUSE-SR:2008:027) http://www.novell.com/linux/security/advisories/2008_27_sr.html Debian Security Advisory (DSA-1719-1) http://lists.debian.org/debian-security-announce/2009/msg00028.html Debian Security Advisory (DSA-1719-2) http://lists.debian.org/debian-security-announce/2009/msg00038.html SUSE Security Advisory (SUSE-SR:2009:009) http://www.novell.com/linux/security/advisories/2009_9_sr.html |
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Version history |
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| Version | Comments | Date |
| 1.0 | Aviso emitido | 2008-11-20 |
| 1.1 | Aviso emitido por Suse (SUSE-SR:2008:027) | 2008-12-11 |
| 1.2 | Aviso emitido por Debian (DSA-1719-1) | 2009-02-10 |
| 1.3 | Aviso actualizado por Debian (DSA-1719-2) | 2009-03-02 |
| 1.4 | Aviso emitido por Suse (SUSE-SR:2009:009) | 2009-04-22 |