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   Red Hat, Inc. Security Advisory
     ________________________________________________________________________________________________
   
   Package amd
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   Synopsis Buffer overrun in amd
     ________________________________________________________________________________________________
   
   Advisory ID RHSA-1999:032-01
     ________________________________________________________________________________________________
   
   Issue Date 1999-08-30
     ________________________________________________________________________________________________
   
   Updated on
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   Keywords amd am-utils buffer overflow remote exploit
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   1. Topic:
   New packages of am-utils are available for all Red Hat Linux platforms. This version includes an
   important security fix for a buffer overrun problem which is being actively exploited on the
   Internet..
   
   2. Bug IDs fixed:
   4690
   
   3. Relevant releases/architectures:
   Red Hat Linux 6.0, all architectures
   
   4. Obsoleted by:
   None
   
   5. Conflicts with:
   Red Hat Linux 4.2 shipped originally with a version of amd that is no longer being maintained. Since
   Red Hat Linux 5.0 we have switched to am-utils. This release of am-utils has been backported to 4.2
   and it will obsolete the original 4.2 amd package.
   
   The following is valid for all releases and arcitectures: the default configuration file format for
   amd that Red Hat used to ship has been changed. Initially the /etc/amd.conf file used to be the
   default map file that would allow access to the /net hierarchy. Now /etc/amd.conf is the amd
   configuration file and the default map is installed as /etc/amd.net.
   
   6. RPMs required:
   
   Intel:
   
   ftp://updates.redhat.com/6.0/i386/
   
   am-utils-6.0.1s11-1.6.0.i386.rpm
   
   Alpha:
   
   ftp://updates.redhat.com/6.0/alpha
   
   am-utils-6.0.1s11-1.6.0.alpha.rpm
   
   SPARC:
   
   ftp://updates.redhat.com/6.0/sparc
   
   am-utils-6.0.1s11-1.6.0.sparc.rpm
   
   Source:
   
   ftp://updates.redhat.com/6.0/SRPMS
   
   am-utils-6.0.1s11-1.6.0.src.rpm
   
   Architecture neutral:
   
   ftp://updates.redhat.com/6.0/noarch/
   
   7. Problem description:
   An explotable buffer overflow security problem in the amd daemon which is part of the am-utils
   package has been fixed. This problem is being actively exploted on the Internet and can be used to
   gain root access on machines running amd.
   
   Red Hat recommends anyone to upgrade to the fixed versions immediately.
   
   Thanks to Erez Zadok, the maintainer of am-utils for his assistance in resolving this problem.
   
   8. Solution:
   For each RPM for your particular architecture, run:
   
   rpm -Uvh filename
   
   where filename is the name of the RPM.
   
   9. Verification:

 MD5 sum                           Package Name

 -------------------------------------------------------------------------

0946dbc5539d208625eb27f506177ed2  i386/am-utils-6.0.1s11-1.6.0.i386.rpm

1a1ceb0ed50822776f605e60bbed1afb  alpha/am-utils-6.0.1s11-1.6.0.alpha.rpm

b68c6f2780f11ca71947673124bd8f11  sparc/am-utils-6.0.1s11-1.6.0.sparc.rpm

275997ded7f0c85efa6229963e84f668  SRPMS/am-utils-6.0.1s11-1.6.0.src.rpm









   These packages are also PGP signed by Red Hat Inc. for security. Our key is available at:
   http://www.redhat.com/corp/contact.html
   
   You can verify each package with the following command:
   
   rpm --checksig filename
   
   If you only wish to verify that each package has not been corrupted or tampered with, examine only
   the md5sum with the following command:
   
   rpm --checksig --nopgp filename
   
   10. References:
   
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