Executive Summary

Informations
Name DSA-045 First vendor Publication 2001-04-09
Vendor Debian Last vendor Modification 2001-04-09
Severity (Vendor) N/A Revision 2

Security-Database Scoring CVSS v3

Cvss vector : N/A
Overall CVSS Score NA
Base Score NA Environmental Score NA
impact SubScore NA Temporal Score NA
Exploitabality Sub Score NA
 
Calculate full CVSS 3.0 Vectors scores

Security-Database Scoring CVSS v2

Cvss vector : (AV:N/AC:L/Au:N/C:C/I:C/A:C)
Cvss Base Score 10 Attack Range Network
Cvss Impact Score 10 Attack Complexity Low
Cvss Expoit Score 10 Authentication None Required
Calculate full CVSS 2.0 Vectors scores

Detail

Przemyslaw Frasunek reported that ntp daemons such as that released with Debian GNU/Linux are vulnerable to a buffer overflow that can lead to a remote root exploit. A previous advisory (DSA-045-1) partially addressed this issue, but introduced a potential denial of service attack. This has been corrected for Debian 2.2 (potato) in ntp version 4.0.99g-2potato2.

We recommend you upgrade your ntp package immediately.

wget url will fetch the file for you dpkg -i file.deb will install the referenced file.

You may use an automated update by adding the resources from the footer to the proper configuration.

Debian GNU/Linux 2.2 alias potato

Original Source

Url : http://www.debian.org/security/2001/dsa-045

OVAL Definitions

Definition Id: oval:org.mitre.oval:def:3831
 
Oval ID: oval:org.mitre.oval:def:3831
Title: Buffer Overflow in ntp Daemon via readvar
Description: Buffer overflow in ntpd ntp daemon 4.0.99k and earlier (aka xntpd and xntp3) allows remote attackers to cause a denial of service and possibly execute arbitrary commands via a long readvar argument.
Family: unix Class: vulnerability
Reference(s): CVE-2001-0414
Version: 1
Platform(s): Sun Solaris 7
Sun Solaris 8
Product(s): sendfilev()
Definition Synopsis:
Definition Id: oval:org.mitre.oval:def:5402
 
Oval ID: oval:org.mitre.oval:def:5402
Title: Multiple Vendor NTP Buffer Overflow
Description: Buffer overflow in ntpd ntp daemon 4.0.99k and earlier (aka xntpd and xntp3) allows remote attackers to cause a denial of service and possibly execute arbitrary commands via a long readvar argument.
Family: ios Class: vulnerability
Reference(s): CVE-2001-0414
Version: 1
Platform(s): Cisco IOS
Product(s):
Definition Synopsis:

CPE : Common Platform Enumeration

TypeDescriptionCount
Application 11
Application 6

OpenVAS Exploits

Date Description
2008-01-17 Name : Debian Security Advisory DSA 045-1 (ntp)
File : nvt/deb_045_1.nasl

Open Source Vulnerability Database (OSVDB)

Id Description
805 NTP ntpd readvar Variable Remote Overflow

A remote overflow exists in the Network Time Protocol Daemon (ntpd). The application fails to perform proper bounds checking resulting in a buffer overflow. With a specially crafted request, containing an overly long 'readvar' argument a remote attacker can gain access to root privileges resulting in a loss of integrity.

Snort® IPS/IDS

Date Description
2014-01-10 ntpdx overflow attempt
RuleID : 312 - Revision : 9 - Type : EXPLOIT

Nessus® Vulnerability Scanner

Date Description
2012-09-06 Name : The remote Mandrake Linux host is missing one or more security updates.
File : mandrake_MDKSA-2001-036.nasl - Type : ACT_GATHER_INFO
2010-09-01 Name : The remote device is missing a vendor-supplied security patch
File : cisco-sa-20020508-ntp-vulnerabilityhttp.nasl - Type : ACT_GATHER_INFO
2004-09-29 Name : The remote Debian host is missing a security-related update.
File : debian_DSA-045.nasl - Type : ACT_GATHER_INFO
2002-06-05 Name : The remote device is missing a vendor-supplied security patch
File : CSCdt93866.nasl - Type : ACT_GATHER_INFO
2001-04-10 Name : The remote NTP server is affected by a remote code execution vulnerability.
File : ntp_overflow.nasl - Type : ACT_DESTRUCTIVE_ATTACK

Alert History

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0
Date Informations
2014-02-17 11:25:23
  • Multiple Updates