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Category:   Application (Generic)  >   Xinetd Vendors:   [Multiple Authors/Vendors]
(Turbolinux Issues Fix) Multiple Vulnerabilities in Xinetd, Including One that May Allow Remote Users to Execute Arbitrary Code with Root Level Privileges
SecurityTracker Alert ID:  1003356
SecurityTracker URL:  http://securitytracker.com/id/1003356
CVE Reference:   CVE-2001-1389   (Links to External Site)
Updated:  Feb 21 2004
Original Entry Date:  Jan 25 2002
Impact:   Execution of arbitrary code via network, Root access via network
Fix Available:  Yes  Vendor Confirmed:  Yes  
Version(s): 2.3.0 and prior
Description:   A security audit by Solar Designer has uncovered multiple vulnerabilities in xinetd, including a formerly reported string handling flaw that was not fully fixed and may allow remote users to execute arbitrary code with root level privileges.

The author of the audit notes that the USERID and RECORD features remain dangerous because the code to handle them has more privileges than may be necessary. It is recommended that packagers make sure these features are disabled by default.

The bugs found include buffer overflows, string handling (format) flaws, and signal race conditions.

Impact:   A remote user may be able to execute arbitrary code with root level privileges, gaining root level access to the system.
Solution:   Turbolinux has released a fix. Update the package from the Turbolinux ftp server by running the following command:

rpm -Uvh ftp://ftp.turbolinux.com/pub/updates/6.0/security/<rpm>

Where <rpm> is the following:

xinetd-2.3.3-2.i386.rpm

The source RPM can be downloaded here:

ftp://ftp.turbolinux.com/pub/updates/6.0/SRPMS/xinetd-2.3.3-2.src.rpm

**Note: You must rebuild and install the RPM if you choose to download
and install the SRPM. Simply installing the SRPM alone WILL NOT CLOSE
THE SECURITY HOLE.

Please verify the MD5 checksums of the updates before you install:

MD5 sum Package Name
---------------------------------------------------------------------------
00c15d36ce412917672826c7d9ffd69e xinetd-2.3.3-3.i386.rpm
974fa259cc5369d5e6c78a00700f2043 xinetd-2.3.3-3.src.rpm

Cause:   Boundary error, Input validation error
Underlying OS:  Linux (Turbo Linux)
Underlying OS Comments:  TL 6.x, All Turbolinux versions, xinetd-2.3.3-1 and earlier

Message History:   This archive entry is a follow-up to the message listed below.
Aug 30 2001 Multiple Vulnerabilities in Xinetd, Including One that May Allow Remote Users to Execute Arbitrary Code with Root Level Privileges



 Source Message Contents

Subject:  [TL-Security-Announce] xinetd-2.3.3-2 TLSA2002004



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___________________________________________________________________________

                        Turbolinux Security Announcement

        Package : xinetd
        Vulnerable Packages: Previous to xinetd-2.3.3-2
        Date: Thu Jan 24 18:34:10 PST 2002

        Affected Turbolinux versions:TL 6.x,
                                     All Turbolinux versions
                                     xinetd-2.3.3-1 and earlier

        Turbolinux Advisory ID#:  TLSA2002004

   Credits: These vulnerabilities were discovered
            by Solar Designer <solar@openwall.com>.
            http://www.securityfocus.com/bid/3257
___________________________________________________________________________

A security hole was discovered in the package mentioned above.
Please update the package in your installation as soon as possible.
___________________________________________________________________________

1. Problem Summary

    During a recent audit, a number of possible security vulnerabilities 
    were uncovered.

2. Impact

    Exploitation of the conditions discovered during the audit could lead 
    to a denial of service or remote root compromise.

3. Solution

  Update the package from our ftp server by running the following command:

  rpm -Uvh ftp://ftp.turbolinux.com/pub/updates/6.0/security/<rpm>

  Where <rpm> is the following:

  xinetd-2.3.3-2.i386.rpm

  The source RPM can be downloaded here:

  ftp://ftp.turbolinux.com/pub/updates/6.0/SRPMS/xinetd-2.3.3-2.src.rpm

  **Note: You must rebuild and install the RPM if you choose to download
  and install the SRPM.  Simply installing the SRPM alone WILL NOT CLOSE
  THE SECURITY HOLE.

 Please verify the MD5 checksums of the updates before you install:

  MD5 sum                               Package Name
---------------------------------------------------------------------------
  00c15d36ce412917672826c7d9ffd69e  xinetd-2.3.3-3.i386.rpm
  974fa259cc5369d5e6c78a00700f2043  xinetd-2.3.3-3.src.rpm
___________________________________________________________________________

These packages are GPG signed by Turbolinux for security. Our key
is available here:

 http://www.turbolinux.com/security/tlgpgkey2002-01-09.asc

To verify a package, use the following command:

 rpm --checksig name_of_rpm

To examine only the md5sum, use the following command:

 rpm --checksig --nogpg name_of_rpm

**Note: Checking GPG keys requires RPM 3.0 or higher.

___________________________________________________________________________
You can find more updates on our ftp server:

   ftp://ftp.turbolinux.com/pub/updates/6.0/security/ for TL6.0 Workstation
   and Server security updates
   ftp://ftp.turbolinux.com/pub/updates/7.0/security/ for TL7.0 Workstation
   and Server security updates

Our webpage for security announcements:

   http://www.turbolinux.com/security

If you want to report vulnerabilities, please contact:

   security@turbolinux.com
___________________________________________________________________________

Subscribe to the Turbolinux Security Mailing lists:

  TL-security - A moderated list for discussing security issues
                Turbolinux products.
  Subscribe at http://www.turbolinux.com/mailman/listinfo/tl-security

  TL-security-announce - An announce-only mailing list for security updates
  and alerts.
  Subscribe at:

      http://www.turbolinux.com/mailman/listinfo/tl-security-announce
___________________________________________________________________________


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--5I6of5zJg18YgZEa--


_______________________________________________
TL-Security-Announce mailing list
TL-Security-Announce@www.turbolinux.com
http://www.turbolinux.com/mailman/listinfo/tl-security-announce


 
 


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