---------------------------------------------------------------------
                   Red Hat, Inc. Security Advisory

Synopsis:          New Netscape packages available
Advisory ID:       RHSA-2000:109-04
Issue date:        2000-11-17
Updated on:        2000-11-17
Product:           Red Hat Linux
Keywords:          netscape HTML buffer overflow
Cross references:  N/A
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1. Topic:

New Netscape packages are available that fix a buffer overflow

in parsing HTML.



It is recommended that all Netscape users update to the fixed

packages.

2. Relevant releases/architectures:

Red Hat Linux 6.0 - i386, alpha, sparc
Red Hat Linux 6.1 - i386, alpha, sparc
Red Hat Linux 6.2 - i386, alpha, sparc
Red Hat Linux 7.0 - i386

3. Problem description:

A buffer overflow exists in Netscape's HTML parsing code. By

using specially designed code, a remote website could cause

arbitrary code to be run on the local machine.

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):

20415 - Netscape segfault - cured in 4.76
20462 - Netscape 4.75 buffer overflow


6. RPMs required:

Red Hat Linux 6.0:

i386:
ftp://updates.redhat.com/6.0/i386/netscape-common-4.76-0.6.2.i386.rpm
ftp://updates.redhat.com/6.0/i386/netscape-communicator-4.76-0.6.2.i386.rpm
ftp://updates.redhat.com/6.0/i386/netscape-navigator-4.76-0.6.2.i386.rpm

sources:
ftp://updates.redhat.com/6.0/SRPMS/netscape-4.76-0.6.2.src.rpm

Red Hat Linux 6.1:

i386:
ftp://updates.redhat.com/6.1/i386/netscape-common-4.76-0.6.2.i386.rpm
ftp://updates.redhat.com/6.1/i386/netscape-communicator-4.76-0.6.2.i386.rpm
ftp://updates.redhat.com/6.1/i386/netscape-navigator-4.76-0.6.2.i386.rpm

sources:
ftp://updates.redhat.com/6.1/SRPMS/netscape-4.76-0.6.2.src.rpm

Red Hat Linux 6.2:

alpha:
ftp://updates.redhat.com/6.2/alpha/netscape-common-4.76-0.6.2.alpha.rpm
ftp://updates.redhat.com/6.2/alpha/netscape-communicator-4.76-0.6.2.alpha.rpm
ftp://updates.redhat.com/6.2/alpha/netscape-navigator-4.76-0.6.2.alpha.rpm

i386:
ftp://updates.redhat.com/6.2/i386/netscape-common-4.76-0.6.2.i386.rpm
ftp://updates.redhat.com/6.2/i386/netscape-communicator-4.76-0.6.2.i386.rpm
ftp://updates.redhat.com/6.2/i386/netscape-navigator-4.76-0.6.2.i386.rpm

sources:
ftp://updates.redhat.com/6.2/SRPMS/netscape-alpha-4.76-0.6.2.src.rpm
ftp://updates.redhat.com/6.2/SRPMS/netscape-4.76-0.6.2.src.rpm

Red Hat Linux 7.0:

i386:
ftp://updates.redhat.com/7.0/i386/netscape-common-4.76-1.i386.rpm
ftp://updates.redhat.com/7.0/i386/netscape-communicator-4.76-1.i386.rpm
ftp://updates.redhat.com/7.0/i386/netscape-navigator-4.76-1.i386.rpm

sources:
ftp://updates.redhat.com/7.0/SRPMS/netscape-alpha-4.76-1.src.rpm
ftp://updates.redhat.com/7.0/SRPMS/netscape-4.76-1.src.rpm

7. Verification:

MD5 sum                           Package Name
--------------------------------------------------------------------------
70e2a3b0e97bd39cf5041ed4abacda98  6.0/SRPMS/netscape-4.76-0.6.2.src.rpm
b4a875d94e0947b16b9a973d23f6222b  6.0/i386/netscape-common-4.76-0.6.2.i386.rpm
fcde6218d7de0e9e009892c57e7f88ca 
 6.0/i386/netscape-communicator-4.76-0.6.2.i386.rpm
670b08cbad1097f4ca923071c202b5dd 
 6.0/i386/netscape-navigator-4.76-0.6.2.i386.rpm
70e2a3b0e97bd39cf5041ed4abacda98  6.1/SRPMS/netscape-4.76-0.6.2.src.rpm
b4a875d94e0947b16b9a973d23f6222b  6.1/i386/netscape-common-4.76-0.6.2.i386.rpm
fcde6218d7de0e9e009892c57e7f88ca 
 6.1/i386/netscape-communicator-4.76-0.6.2.i386.rpm
670b08cbad1097f4ca923071c202b5dd 
 6.1/i386/netscape-navigator-4.76-0.6.2.i386.rpm
70e2a3b0e97bd39cf5041ed4abacda98  6.2/SRPMS/netscape-4.76-0.6.2.src.rpm
924dec1cde5eba83655c1aa1f93bad39  6.2/SRPMS/netscape-alpha-4.76-0.6.2.src.rpm
acbb0bcbca33eb41e396a9c7013e2d3d 
 6.2/alpha/netscape-common-4.76-0.6.2.alpha.rpm
5709be8e1656a2eff9fafe719f5528d2
6.2/alpha/netscape-communicator-4.76-0.6.2.alpha.rpm
9aa6f256592c3f96ee60c57b879618b2 
 6.2/alpha/netscape-navigator-4.76-0.6.2.alpha.rpm
b4a875d94e0947b16b9a973d23f6222b  6.2/i386/netscape-common-4.76-0.6.2.i386.rpm
fcde6218d7de0e9e009892c57e7f88ca 
 6.2/i386/netscape-communicator-4.76-0.6.2.i386.rpm
670b08cbad1097f4ca923071c202b5dd 
 6.2/i386/netscape-navigator-4.76-0.6.2.i386.rpm
81e1c3e9673ab1e2b498cf3fdaeabcc5  7.0/SRPMS/netscape-4.76-1.src.rpm
7faa76eb6405f45aeb6c41380b833967  7.0/SRPMS/netscape-alpha-4.76-1.src.rpm
3bb98e22f094236211955579c7ce49ad  7.0/i386/netscape-common-4.76-1.i386.rpm
fc03263dbbbe7f8f1031200d9a8e2022 
 7.0/i386/netscape-communicator-4.76-1.i386.rpm
3a12fb2d8d0187c7d3684b2a7cf4a9fc  7.0/i386/netscape-navigator-4.76-1.i386.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  <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 --nogpg <filename>

8. References:

FreeBSD-SA-00%3A66.netscape.asc


Copyright(c) 2000 Red Hat, Inc.



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