Vulnerability Bulletins |
Denegación de servicio en NTP |
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Vulnerability classification |
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| Property | Value |
| Confidence level | Oficial |
| Impact | Denegación de Servicio |
| 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 |
NTP 4.2.4 NTP 4.2.5 |
Description |
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Se ha descubierto una vulnerabilidad en NTP 4.2. La vulnerabilidad reside en un error en el fichero "ntp_request.c". Un atacante remoto podría causar una denegación de servicio mediante el envío de un paquete de petición o respuesta especialmente diseñado que provoca un continuo intercambio de respuestas de error "MODE_PRIVATE". |
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Solution |
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Actualización de software Debian (DSA-1948-1) Debian Linux 4.0 Source http://security.debian.org/pool/updates/main/n/ntp/ntp_4.2.2.p4+dfsg-2etch4.dsc http://security.debian.org/pool/updates/main/n/ntp/ntp_4.2.2.p4+dfsg.orig.tar.gz http://security.debian.org/pool/updates/main/n/ntp/ntp_4.2.2.p4+dfsg-2etch4.diff.gz Arquitectura independiente: http://security.debian.org/pool/updates/main/n/ntp/ntp-refclock_4.2.2.p4+dfsg-2etch4_all.deb http://security.debian.org/pool/updates/main/n/ntp/ntp-simple_4.2.2.p4+dfsg-2etch4_all.deb http://security.debian.org/pool/updates/main/n/ntp/ntp-doc_4.2.2.p4+dfsg-2etch4_all.deb alpha (DEC Alpha) http://security.debian.org/pool/updates/main/n/ntp/ntp_4.2.2.p4+dfsg-2etch4_alpha.deb http://security.debian.org/pool/updates/main/n/ntp/ntpdate_4.2.2.p4+dfsg-2etch4_alpha.deb amd64 (AMD x86_64 (AMD64)) http://security.debian.org/pool/updates/main/n/ntp/ntpdate_4.2.2.p4+dfsg-2etch4_amd64.deb http://security.debian.org/pool/updates/main/n/ntp/ntp_4.2.2.p4+dfsg-2etch4_amd64.deb arm (ARM) http://security.debian.org/pool/updates/main/n/ntp/ntpdate_4.2.2.p4+dfsg-2etch4_arm.deb http://security.debian.org/pool/updates/main/n/ntp/ntp_4.2.2.p4+dfsg-2etch4_arm.deb hppa (HP PA RISC) http://security.debian.org/pool/updates/main/n/ntp/ntp_4.2.2.p4+dfsg-2etch4_hppa.deb http://security.debian.org/pool/updates/main/n/ntp/ntpdate_4.2.2.p4+dfsg-2etch4_hppa.deb i386 (Intel ia32) http://security.debian.org/pool/updates/main/n/ntp/ntpdate_4.2.2.p4+dfsg-2etch4_i386.deb http://security.debian.org/pool/updates/main/n/ntp/ntp_4.2.2.p4+dfsg-2etch4_i386.deb ia64 (Intel ia64) http://security.debian.org/pool/updates/main/n/ntp/ntp_4.2.2.p4+dfsg-2etch4_ia64.deb http://security.debian.org/pool/updates/main/n/ntp/ntpdate_4.2.2.p4+dfsg-2etch4_ia64.deb mips (MIPS (Big Endian)) http://security.debian.org/pool/updates/main/n/ntp/ntp_4.2.2.p4+dfsg-2etch4_mips.deb http://security.debian.org/pool/updates/main/n/ntp/ntpdate_4.2.2.p4+dfsg-2etch4_mips.deb mipsel (MIPS (Little Endian)) http://security.debian.org/pool/updates/main/n/ntp/ntpdate_4.2.2.p4+dfsg-2etch4_mipsel.deb http://security.debian.org/pool/updates/main/n/ntp/ntp_4.2.2.p4+dfsg-2etch4_mipsel.deb powerpc (PowerPC) http://security.debian.org/pool/updates/main/n/ntp/ntp_4.2.2.p4+dfsg-2etch4_powerpc.deb http://security.debian.org/pool/updates/main/n/ntp/ntpdate_4.2.2.p4+dfsg-2etch4_powerpc.deb s390 (IBM S/390) http://security.debian.org/pool/updates/main/n/ntp/ntp_4.2.2.p4+dfsg-2etch4_s390.deb http://security.debian.org/pool/updates/main/n/ntp/ntpdate_4.2.2.p4+dfsg-2etch4_s390.deb sparc (Sun SPARC/UltraSPARC) http://security.debian.org/pool/updates/main/n/ntp/ntpdate_4.2.2.p4+dfsg-2etch4_sparc.deb http://security.debian.org/pool/updates/main/n/ntp/ntp_4.2.2.p4+dfsg-2etch4_sparc.deb Debian (DSA-1948-1) Debian Linux 5.0 Source http://security.debian.org/pool/updates/main/n/ntp/ntp_4.2.4p4+dfsg-8lenny3.dsc http://security.debian.org/pool/updates/main/n/ntp/ntp_4.2.4p4+dfsg.orig.tar.gz http://security.debian.org/pool/updates/main/n/ntp/ntp_4.2.4p4+dfsg-8lenny3.diff.gz Arquitectura independiente: http://security.debian.org/pool/updates/main/n/ntp/ntp-doc_4.2.4p4+dfsg-8lenny3_all.deb alpha (DEC Alpha) http://security.debian.org/pool/updates/main/n/ntp/ntpdate_4.2.4p4+dfsg-8lenny3_alpha.deb http://security.debian.org/pool/updates/main/n/ntp/ntp_4.2.4p4+dfsg-8lenny3_alpha.deb amd64 (AMD x86_64 (AMD64)) http://security.debian.org/pool/updates/main/n/ntp/ntpdate_4.2.4p4+dfsg-8lenny3_amd64.deb http://security.debian.org/pool/updates/main/n/ntp/ntp_4.2.4p4+dfsg-8lenny3_amd64.deb arm (ARM) http://security.debian.org/pool/updates/main/n/ntp/ntpdate_4.2.4p4+dfsg-8lenny3_arm.deb http://security.debian.org/pool/updates/main/n/ntp/ntp_4.2.4p4+dfsg-8lenny3_arm.deb armel (ARM EABI) http://security.debian.org/pool/updates/main/n/ntp/ntpdate_4.2.4p4+dfsg-8lenny3_armel.deb http://security.debian.org/pool/updates/main/n/ntp/ntp_4.2.4p4+dfsg-8lenny3_armel.deb hppa (HP PA RISC) http://security.debian.org/pool/updates/main/n/ntp/ntpdate_4.2.4p4+dfsg-8lenny3_hppa.deb http://security.debian.org/pool/updates/main/n/ntp/ntp_4.2.4p4+dfsg-8lenny3_hppa.deb i386 (Intel ia32) http://security.debian.org/pool/updates/main/n/ntp/ntp_4.2.4p4+dfsg-8lenny3_i386.deb http://security.debian.org/pool/updates/main/n/ntp/ntpdate_4.2.4p4+dfsg-8lenny3_i386.deb ia64 (Intel ia64) http://security.debian.org/pool/updates/main/n/ntp/ntp_4.2.4p4+dfsg-8lenny3_ia64.deb http://security.debian.org/pool/updates/main/n/ntp/ntpdate_4.2.4p4+dfsg-8lenny3_ia64.deb mips (MIPS (Big Endian)) http://security.debian.org/pool/updates/main/n/ntp/ntpdate_4.2.4p4+dfsg-8lenny3_mips.deb http://security.debian.org/pool/updates/main/n/ntp/ntp_4.2.4p4+dfsg-8lenny3_mips.deb mipsel (MIPS (Little Endian)) http://security.debian.org/pool/updates/main/n/ntp/ntp_4.2.4p4+dfsg-8lenny3_mipsel.deb http://security.debian.org/pool/updates/main/n/ntp/ntpdate_4.2.4p4+dfsg-8lenny3_mipsel.deb powerpc (PowerPC) http://security.debian.org/pool/updates/main/n/ntp/ntp_4.2.4p4+dfsg-8lenny3_powerpc.deb http://security.debian.org/pool/updates/main/n/ntp/ntpdate_4.2.4p4+dfsg-8lenny3_powerpc.deb s390 (IBM S/390) http://security.debian.org/pool/updates/main/n/ntp/ntpdate_4.2.4p4+dfsg-8lenny3_s390.deb http://security.debian.org/pool/updates/main/n/ntp/ntp_4.2.4p4+dfsg-8lenny3_s390.deb Red Hat (RHSA-2008:0547-5) Red Hat Desktop (v. 4) Red Hat Enterprise Linux (v. 5 servidor) Red Hat Enterprise Linux AS (v. 4) Red Hat Enterprise Linux AS (v. 4.8.z) Red Hat Enterprise Linux Desktop (v. 5 cliente) Red Hat Enterprise Linux ES (v. 4) Red Hat Enterprise Linux ES (v. 4.8.z) Red Hat Enterprise Linux EUS (v. 5.4.z servidor) Red Hat Enterprise Linux WS (v. 4) https://rhn.redhat.com/ Red Hat (RHSA-2009:1651-1) Red Hat Desktop (v. 3) Red Hat Enterprise Linux AS (v. 3) Red Hat Enterprise Linux ES (v. 3) Red Hat Enterprise Linux WS (v. 3) https://rhn.redhat.com/ Suse Linux Las actualizaciones pueden descargarse mediante YAST o del servidor FTP oficial de Suse Linux. Sun Solaris 8 / SPARC / patch 109667-08 o posterior Solaris 9 / SPARC / patch 117143-02 o posterior Solaris 10 xntpd (SUNWntpu) / SPARC / patch 127724-02 o posterior Solaris 10 ntpd (SUNWntp4u) / SPARC / patch 143725-01 o posterior Solaris 8 / x86 / patch 109668-08 o posterior Solaris 9 / x86 / patch 117144-02 o posterior Solaris 10 xntp (SUNWntpu) / x86 / patch 127725-02 o posterior Solaris 10 ntpd (SUNWntp4u) / x86 / patch 143726-01 o posterior OpenSolaris builds snv_133 o posterior http://sunsolve.sun.com/pub-cgi/show.pl?target=patchpage |
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Standar resources |
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| Property | Value |
| CVE | CVE-2009-3563 |
| BID | 37255 |
Other resources |
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Debian Security Advisory (DSA-1948-1) http://lists.debian.org/debian-security-announce/2009/msg00271.html Red Hat Security Advisory (RHSA-2009:1648-1) https://rhn.redhat.com/errata/RHSA-2009-1648.html Red Hat Security Advisory (RHSA-2009:1651-1) https://rhn.redhat.com/errata/RHSA-2009-1651.html SUSE Security Advisory (SUSE-SR:2009:020) http://www.novell.com/linux/security/advisories/2009_20_sr.html Sun Alert Notification http://sunsolve.sun.com/search/document.do?assetkey=1-77-1021781.1-1 |
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Version history |
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| Version | Comments | Date |
| 1.0 | Aviso emitido | 2009-12-10 |
| 1.1 | Aviso emitido por Suse (SUSE-SR:2009:020) | 2010-01-19 |
| 1.2 | Aviso emitido por IBM | 2010-03-09 |
| 1.3 | Aviso actualizado por Sun (275590) | 2010-03-12 |
| 1.4 | Aviso actualizado por Sun (275590) | 2010-03-22 |
| 1.5 | Aviso emitido por HP (HPSBOV02497) | 2010-04-05 |
| 1.6 | Aviso emitido por Sun | 2010-07-05 |