RH6.0: amd (RHSA-1999:032-01)
Posted by LinuxSecurity.com Team   
RedHat Linux 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.
 
Red Hat, Inc. Security Advisory
Package amd

Synopsis Buffer overrun in amd

Advisory ID RHSA-1999:032-01

Issue Date 1999-08-30

Updated on

Keywords amd am-utils buffer overflow remote exploit



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.Red Hat.com/6.0/i386/

am-utils-6.0.1s11-1.6.0.i386.rpm

Alpha:

ftp://updates.Red Hat.com/6.0/alpha

am-utils-6.0.1s11-1.6.0.alpha.rpm

SPARC:

ftp://updates.Red Hat.com/6.0/sparc

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

Source:

ftp://updates.Red Hat.com/6.0/SRPMS

am-utils-6.0.1s11-1.6.0.src.rpm

Architecture neutral:

ftp://updates.Red Hat.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.Red Hat.com/corp/contac t.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: