Säkerhetsbulletin från Debian

DSA-1801-1 ntp -- buffertspill

Rapporterat den:

2009-05-19

Berörda paket:

Sårbara:

Referenser i säkerhetsdatabaser:

I Debians felrapporteringssystem: Fel 525373.
I Mitres CVE-förteckning: CVE-2009-0159, CVE-2009-1252.
CERTs information om sårbarheter, bulletiner och incidenter: VU#853097.

Ytterligare information:

Flera utifrån nåbara sårbarheter har upptäckts i NTP, referensimplementationen för protokollet för nätverkstid (Network Time Protocol). Projektet Common Vulnerabilities and Exposures identifierar följande problem:

CVE-2009-0159
Ett buffertspill i ntpq tillåter en fjärr-NTP-server att utföra en överbelastningsattack eller exekvera godtycklig kod med hjälp av ett specialskrivet svar.
CVE-2009-1252
Ett buffertspill i ntpd tillåter en angripare utifrån att skapa en överbelastningsattack eller exekvera godtycklig kod när autokey-funktionaliteten är aktiverad.

För den gamla stabila utgåvan (Etch) har dessa problem rättats i version 4.2.2.p4+dfsg-2etch3.

För den stabila utgåvan (Lenny) har dessa problem rättats i version 4.2.4p4+dfsg-8lenny2.

Den instabila utgåvan (Sid) kommer att rättas inom kort.

Vi rekommenderar att ni uppgraderar ert ntp-paket.

Rättat i:

Debian GNU/Linux 4.0 (etch)

Källkod:: http://security.debian.org/pool/updates/main/n/ntp/ntp_4.2.2.p4+dfsg-2etch3.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-2etch3.diff.gz
Arkitekturoberoende komponent:: http://security.debian.org/pool/updates/main/n/ntp/ntp-refclock_4.2.2.p4+dfsg-2etch3_all.deb; http://security.debian.org/pool/updates/main/n/ntp/ntp-doc_4.2.2.p4+dfsg-2etch3_all.deb; http://security.debian.org/pool/updates/main/n/ntp/ntp-simple_4.2.2.p4+dfsg-2etch3_all.deb
Alpha:: http://security.debian.org/pool/updates/main/n/ntp/ntpdate_4.2.2.p4+dfsg-2etch3_alpha.deb; http://security.debian.org/pool/updates/main/n/ntp/ntp_4.2.2.p4+dfsg-2etch3_alpha.deb
AMD64:: http://security.debian.org/pool/updates/main/n/ntp/ntp_4.2.2.p4+dfsg-2etch3_amd64.deb; http://security.debian.org/pool/updates/main/n/ntp/ntpdate_4.2.2.p4+dfsg-2etch3_amd64.deb
ARM:: http://security.debian.org/pool/updates/main/n/ntp/ntpdate_4.2.2.p4+dfsg-2etch3_arm.deb; http://security.debian.org/pool/updates/main/n/ntp/ntp_4.2.2.p4+dfsg-2etch3_arm.deb
HP Precision:: http://security.debian.org/pool/updates/main/n/ntp/ntpdate_4.2.2.p4+dfsg-2etch3_hppa.deb; http://security.debian.org/pool/updates/main/n/ntp/ntp_4.2.2.p4+dfsg-2etch3_hppa.deb
Intel IA-32:: http://security.debian.org/pool/updates/main/n/ntp/ntpdate_4.2.2.p4+dfsg-2etch3_i386.deb; http://security.debian.org/pool/updates/main/n/ntp/ntp_4.2.2.p4+dfsg-2etch3_i386.deb
Intel IA-64:: http://security.debian.org/pool/updates/main/n/ntp/ntpdate_4.2.2.p4+dfsg-2etch3_ia64.deb; http://security.debian.org/pool/updates/main/n/ntp/ntp_4.2.2.p4+dfsg-2etch3_ia64.deb
Big-endian MIPS:: http://security.debian.org/pool/updates/main/n/ntp/ntp_4.2.2.p4+dfsg-2etch3_mips.deb; http://security.debian.org/pool/updates/main/n/ntp/ntpdate_4.2.2.p4+dfsg-2etch3_mips.deb
Little-endian MIPS:: http://security.debian.org/pool/updates/main/n/ntp/ntp_4.2.2.p4+dfsg-2etch3_mipsel.deb; http://security.debian.org/pool/updates/main/n/ntp/ntpdate_4.2.2.p4+dfsg-2etch3_mipsel.deb
PowerPC:: http://security.debian.org/pool/updates/main/n/ntp/ntp_4.2.2.p4+dfsg-2etch3_powerpc.deb; http://security.debian.org/pool/updates/main/n/ntp/ntpdate_4.2.2.p4+dfsg-2etch3_powerpc.deb
IBM S/390:: http://security.debian.org/pool/updates/main/n/ntp/ntpdate_4.2.2.p4+dfsg-2etch3_s390.deb; http://security.debian.org/pool/updates/main/n/ntp/ntp_4.2.2.p4+dfsg-2etch3_s390.deb
Sun Sparc:: http://security.debian.org/pool/updates/main/n/ntp/ntpdate_4.2.2.p4+dfsg-2etch3_sparc.deb; http://security.debian.org/pool/updates/main/n/ntp/ntp_4.2.2.p4+dfsg-2etch3_sparc.deb

Debian GNU/Linux 5.0 (lenny)

Källkod:: 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-8lenny2.diff.gz; http://security.debian.org/pool/updates/main/n/ntp/ntp_4.2.4p4+dfsg-8lenny2.dsc
Arkitekturoberoende komponent:: http://security.debian.org/pool/updates/main/n/ntp/ntp-doc_4.2.4p4+dfsg-8lenny2_all.deb
Alpha:: http://security.debian.org/pool/updates/main/n/ntp/ntpdate_4.2.4p4+dfsg-8lenny2_alpha.deb; http://security.debian.org/pool/updates/main/n/ntp/ntp_4.2.4p4+dfsg-8lenny2_alpha.deb
AMD64:: http://security.debian.org/pool/updates/main/n/ntp/ntpdate_4.2.4p4+dfsg-8lenny2_amd64.deb; http://security.debian.org/pool/updates/main/n/ntp/ntp_4.2.4p4+dfsg-8lenny2_amd64.deb
ARM:: http://security.debian.org/pool/updates/main/n/ntp/ntp_4.2.4p4+dfsg-8lenny2_arm.deb; http://security.debian.org/pool/updates/main/n/ntp/ntpdate_4.2.4p4+dfsg-8lenny2_arm.deb
ARM EABI:: http://security.debian.org/pool/updates/main/n/ntp/ntpdate_4.2.4p4+dfsg-8lenny2_armel.deb; http://security.debian.org/pool/updates/main/n/ntp/ntp_4.2.4p4+dfsg-8lenny2_armel.deb
HP Precision:: http://security.debian.org/pool/updates/main/n/ntp/ntp_4.2.4p4+dfsg-8lenny2_hppa.deb; http://security.debian.org/pool/updates/main/n/ntp/ntpdate_4.2.4p4+dfsg-8lenny2_hppa.deb
Intel IA-32:: http://security.debian.org/pool/updates/main/n/ntp/ntp_4.2.4p4+dfsg-8lenny2_i386.deb; http://security.debian.org/pool/updates/main/n/ntp/ntpdate_4.2.4p4+dfsg-8lenny2_i386.deb
Intel IA-64:: http://security.debian.org/pool/updates/main/n/ntp/ntpdate_4.2.4p4+dfsg-8lenny2_ia64.deb; http://security.debian.org/pool/updates/main/n/ntp/ntp_4.2.4p4+dfsg-8lenny2_ia64.deb
Big-endian MIPS:: http://security.debian.org/pool/updates/main/n/ntp/ntp_4.2.4p4+dfsg-8lenny2_mips.deb; http://security.debian.org/pool/updates/main/n/ntp/ntpdate_4.2.4p4+dfsg-8lenny2_mips.deb
Little-endian MIPS:: http://security.debian.org/pool/updates/main/n/ntp/ntp_4.2.4p4+dfsg-8lenny2_mipsel.deb; http://security.debian.org/pool/updates/main/n/ntp/ntpdate_4.2.4p4+dfsg-8lenny2_mipsel.deb
PowerPC:: http://security.debian.org/pool/updates/main/n/ntp/ntp_4.2.4p4+dfsg-8lenny2_powerpc.deb; http://security.debian.org/pool/updates/main/n/ntp/ntpdate_4.2.4p4+dfsg-8lenny2_powerpc.deb
IBM S/390:: http://security.debian.org/pool/updates/main/n/ntp/ntp_4.2.4p4+dfsg-8lenny2_s390.deb; http://security.debian.org/pool/updates/main/n/ntp/ntpdate_4.2.4p4+dfsg-8lenny2_s390.deb
Sun Sparc:: http://security.debian.org/pool/updates/main/n/ntp/ntp_4.2.4p4+dfsg-8lenny2_sparc.deb; http://security.debian.org/pool/updates/main/n/ntp/ntpdate_4.2.4p4+dfsg-8lenny2_sparc.deb

MD5-kontrollsummor för dessa filer finns i originalbulletinen.