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______________________________________________________________________________
		   Caldera International, Inc.  Security Advisory

Subject:		Linux - security issues in ucd-snmp
Advisory number: 	CSSA-2001-031.0
Issue date: 		2001, August 16
Cross reference:
______________________________________________________________________________


1. Problem Description

   In a routine security audit of the ucd-snmp package we have found
   several problems, including several potentially exploitable buffer
   overflows, format string bugs, signedness issues and tempfile race
   conditions. Some of these might allow remote attackers to gain access
   to the UID under which snmpd is running. This update fixes all known
   problems and also makes the snmpd run as user 'nobody', reducing the
   impact of further problems.


2. Vulnerable Versions

   System                       Package
   -----------------------------------------------------------
   OpenLinux 2.3                 not vulnerable                
   
   OpenLinux eServer 2.3.1       All packages previous to      
   and OpenLinux eBuilder        ucd-snmp-4.2.1-6b             
   
   OpenLinux eDesktop 2.4        not vulnerable                
   
   OpenLinux Server 3.1          not vulnerable                
   
   OpenLinux Workstation 3.1     not vulnerable                
   

3. Solution

   Workaround

     none

   The proper solution is to upgrade to the latest packages.

4. OpenLinux 2.3

    not vulnerable

5. OpenLinux eServer 2.3.1 and OpenLinux eBuilder for ECential 3.0

    5.1 Location of Fixed Packages

       The upgrade packages can be found on Caldera's FTP site at:

       ftp://ftp.caldera.com/pub/updates/eServer/2.3/current/RPMS

       The corresponding source code package can be found at:

       ftp://ftp.caldera.com/pub/updates/eServer/2.3/current/SRPMS

   5.2 Verification

       cb200e856acac6bd14fec9eb67eabb14  RPMS/ucd-snmp-4.2.1-6b.i386.rpm
       0c8f8963ce490f80a47681996e9370ab  RPMS/ucd-snmp-devel-4.2.1-6b.i386.rpm
       d584b6cd0b799b4b928dadce9f2ec058  RPMS/ucd-snmp-utils-4.2.1-6b.i386.rpm
       1e78df3f5bfce4319ce8e7622e45d795  SRPMS/ucd-snmp-4.2.1-6b.src.rpm
       

   5.3 Installing Fixed Packages

       Upgrade the affected packages with the following commands:

         rpm -Fvh ucd-snmp-4.2.1-6b.i386.rpm \
              ucd-snmp-devel-4.2.1-6b.i386.rpm \
              ucd-snmp-utils-4.2.1-6b.i386.rpm
         

6. OpenLinux eDesktop 2.4

    not vulnerable

7. OpenLinux 3.1 Server

    not vulnerable

8. OpenLinux 3.1 Workstation

    not vulnerable

9. References

   This and other Caldera security resources are located at:

   http://www.caldera.com/support/security/index.html

   This security fix closes Caldera's internal Problem Report 10043.


10. Disclaimer

   Caldera International, Inc. is not responsible for the misuse of
   any of the information we provide on this website and/or through our
   security advisories. Our advisories are a service to our customers
   intended to promote secure installation and use of Caldera OpenLinux.
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