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Red Hat Security Advisory: Updated Kerberos 5 packages are now available

May 22, 2000, 18:12 (1 Talkback[s])

Date: Thu, 18 May 2000 11:22 -0400
From: bugzilla@redhat.com
To: redhat-watch-list@redhat.com
Subject: [RHSA-2000:025-07] Updated Kerberos 5 packages are now available for Red Hat Linux.


                   Red Hat, Inc. Security Advisory

Synopsis:          Updated Kerberos 5 packages are now available for Red Hat Linux.
Advisory ID:       RHSA-2000:025-07
Issue date:        2000-05-16
Updated on:        2000-05-18
Product:           Red Hat Linux
Keywords:          N/A
Cross references:  N/A

1. Topic:

Security vulnerabilities have been found in the Kerberos 5 implementation shipped with Red Hat Linux 6.2.

2. Relevant releases/architectures:

Red Hat Linux 6.2 - i386 alpha sparc

3. Problem description:

A number of possible buffer overruns were found in libraries included in the affected packages. A denial-of-service vulnerability was also found in the ksu program.

* A remote user may gain unauthorized root access to a machine running services authenticated with Kerberos 4.

* A remote user may gain unauthorized root access to a machine running krshd, regardless of whether the program is configured to accept Kerberos 4 authentication.

* A local user may gain unauthorized root access by exploiting v4rcp or ksu.

A packaging error was discovered in the original set of updates. This set of update packages includes no functional differences compared to the previously-released set.

4. Solution:

For each RPM for your particular architecture, run:

rpm -Fvh [filename]

where filename is the name of the RPM.

5. Bug IDs fixed (http://bugzilla.redhat.com/bugzilla for more info):

10653 - 'stat' unresolved on "libkrb5.so.2.2" load
11496 - security-updated krb5 packages fail dependencies

6. RPMs required:

Red Hat Linux 6.2:

intel:
ftp://ftp.redhat.com/6.2/i386/krb5-configs-1.1.1-16.i386.rpm
ftp://ftp.redhat.com/6.2/i386/krb5-devel-1.1.1-16.i386.rpm
ftp://ftp.redhat.com/6.2/i386/krb5-libs-1.1.1-16.i386.rpm
ftp://ftp.redhat.com/6.2/i386/krb5-server-1.1.1-16.i386.rpm
ftp://ftp.redhat.com/6.2/i386/krb5-workstation-1.1.1-16.i386.rpm

alpha:
ftp://ftp.redhat.com/6.2/alpha/krb5-configs-1.1.1-16.alpha.rpm
ftp://ftp.redhat.com/6.2/alpha/krb5-devel-1.1.1-16.alpha.rpm
ftp://ftp.redhat.com/6.2/alpha/krb5-libs-1.1.1-16.alpha.rpm
ftp://ftp.redhat.com/6.2/alpha/krb5-server-1.1.1-16.alpha.rpm
ftp://ftp.redhat.com/6.2/alpha/krb5-workstation-1.1.1-16.alpha.rpm

sparc:
ftp://ftp.redhat.com/6.2/sparc/krb5-configs-1.1.1-16.sparc.rpm
ftp://ftp.redhat.com/6.2/sparc/krb5-devel-1.1.1-16.sparc.rpm
ftp://ftp.redhat.com/6.2/sparc/krb5-libs-1.1.1-16.sparc.rpm
ftp://ftp.redhat.com/6.2/sparc/krb5-server-1.1.1-16.sparc.rpm
ftp://ftp.redhat.com/6.2/sparc/krb5-workstation-1.1.1-16.sparc.rpm

7. Verification:

MD5 sum                           Package Name

683bda3272d3f2cbcbb8e0a7c0406ccf 6.2/alpha/krb5-configs-1.1.1-16.alpha.rpm
ba5f06e4c645ea8ab1d3bcd4487ebaa6 6.2/alpha/krb5-devel-1.1.1-16.alpha.rpm
77cf98beb23c287fc012cd6dc6521301 6.2/alpha/krb5-libs-1.1.1-16.alpha.rpm
6ad4f37397a234c1d46885c4abc6ba5e 6.2/alpha/krb5-server-1.1.1-16.alpha.rpm
daf0856da5ba8007fa54aebe6b5089f4 6.2/alpha/krb5-workstation-1.1.1-16.alpha.rpm
3612c7bcf0b08dfb721dcc32f31507d0 6.2/i386/krb5-configs-1.1.1-16.i386.rpm
f3c2789283ace967e7690e50227e7f35 6.2/i386/krb5-devel-1.1.1-16.i386.rpm
ea698e0bcf61f8281055a7ff9d9e2615 6.2/i386/krb5-libs-1.1.1-16.i386.rpm
0b176c84d19f4ccc2e0d4e894008c2ba 6.2/i386/krb5-server-1.1.1-16.i386.rpm
91d06f5759da4b0de0d4969e09ceb8e6 6.2/i386/krb5-workstation-1.1.1-16.i386.rpm
221e76df87c09b4d9746246a7746454d 6.2/sparc/krb5-configs-1.1.1-16.sparc.rpm
209e4547f41861fc6d7f505ea6c1bd85 6.2/sparc/krb5-devel-1.1.1-16.sparc.rpm
818d5fe6042250f310cdf2f94f14c3c8 6.2/sparc/krb5-libs-1.1.1-16.sparc.rpm
9acfdfbafc2f34e89296bb34e7750343 6.2/sparc/krb5-server-1.1.1-16.sparc.rpm
aefb875acc83970a5e253895a1611549 6.2/sparc/krb5-workstation-1.1.1-16.sparc.rpm
These packages are GPG 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

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 --nogpg

8. References:

N/A