Date: Thu, 26 Apr 2001 12:48:08 -0400
From: [email protected]
To: [email protected]Subject: [ESA-20010409-02] xntp i386 packages available
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| EnGarde Secure Linux Security Advisory April 26, 2001 |
| http://www.engardelinux.org/ ESA-20010409-02 |
| |
| Package: xntp3 |
| Summary: There is a potentially exploitable buffer overflow in the |
| xntp3 package. |
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(This advisory is being re-issued to denote the release of our updated
packages for the i386 architecture.)
EnGarde Secure Linux is a secure distribution of Linux that features
improved access control, host and network intrusion detection, Web
based secure remote management, complete e-commerce using AllCommerce,
and integrated open source security tools.
OVERVIEW
- --------
There is a very small buffer overflow in NTP daemon which shipped with
EnGarde Secure Linux version 1.0.1.
DETAIL
- ------
The Network Time Protocol (NTP) is used to synchronize a computer's
time with another reference time source. The xntp3 package contains
utilities and daemons which will synchronize your computer's time to
Coordinated Universal Time (UTC) via the NTP protocol and NTP servers.
By attacking a very small buffer with a very small set of shellcode, an
attacker can potentially gain root access. It has been reported that
in some cases the only effect is the segfault of the ntpd.
SOLUTION
- --------
All users running 'xntp3' should upgrade to the most recent version, as
outlined in this advisory. All updates can be found at:
ftp://ftp.engardelinux.org/pub/engarde/stable/updates/http://ftp.engardelinux.org/pub/engarde/stable/updates/
To install the updated package, execute the command:
rpm -Uvh <filename>
To verify the signature of the updated packages, execute the command:
rpm -Kv <filename>
UPDATED PACKAGES
- ----------------
Source Packages:
SRPMS/xntp3-5.93-1.0.16.src.rpm
MD5 Sum: 853821174dad6b5a979f6eaae8ce815a
i386 Binary Packages:
i386/xntp3-5.93-1.0.16.i386.rpm
MD5 Sum: de6b815ccca016108cbfb305c947eb14
i686 Binary Packages:
i686/xntp3-5.93-1.0.16.i686.rpm
MD5 Sum: 3d7823343a0db6485a94fa16fad5afbd
REFERENCES
- ----------
Guardian Digital's public key:
http://ftp.engardelinux.org/pub/engarde/ENGARDE-GPG-KEY
Credit for the discovery of this bug goes to:
Przemyslaw Frasunek <[email protected]>
The Official Web Site:
http://www.eecis.udel.edu/~ntp/
SecurityFocus Bug ID:
http://www.securityfocus.com/bid/2540
Initial Announcement on BugTraq:
http://www.securityfocus.com/templates/archive.pike?list=1&mid=174011
- ----------------------------------------------------------------------------
$Id: 2001.04.09-xntp3,v 1.2 2001/04/26 15:18:52 rwm Exp $
- ----------------------------------------------------------------------------
Author: Ryan W. Maple, <[email protected]>
Copyright 2001, Guardian Digital, Inc.
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Copyright(c) 2001 Guardian Digital, Inc. EnGardeLinux.org
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