Debian Security Advisory

DSA-1801-1 ntp -- buffer overflows

Date Reported:

19 May 2009

Affected Packages:

Vulnerable:

Yes

Security database references:

In the Debian bugtracking system: Bug 525373.
In Mitre's CVE dictionary: CVE-2009-0159, CVE-2009-1252.
CERT's vulnerabilities, advisories and incident notes: VU#853097.

More information:

Several remote vulnerabilities have been discovered in NTP, the Network Time Protocol reference implementation. The Common Vulnerabilities and Exposures project identifies the following problems:

CVE-2009-0159
A buffer overflow in ntpq allow a remote NTP server to create a denial of service attack or to execute arbitrary code via a crafted response.
CVE-2009-1252
A buffer overflow in ntpd allows a remote attacker to create a denial of service attack or to execute arbitrary code when the autokey functionality is enabled.

For the old stable distribution (etch), these problems have been fixed in version 4.2.2.p4+dfsg-2etch3.

For the stable distribution (lenny), these problems have been fixed in version 4.2.4p4+dfsg-8lenny2.

The unstable distribution (sid) will be fixed soon.

We recommend that you upgrade your ntp package.

Fixed in:

Debian GNU/Linux 4.0 (etch)

Source:: 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
Architecture-independent component:: 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)

Source:: 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
Architecture-independent component:: 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 checksums of the listed files are available in the original advisory.