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                   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:

http://updates.redhat.com/6.0/i386/netscape-common-4.76-0.6.2.i386.rpm

http://updates.redhat.com/6.0/i386/netscape-communicator-4.76-0.6.2.i386.rpm

http://updates.redhat.com/6.0/i386/netscape-navigator-4.76-0.6.2.i386.rpm



sources:

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



Red Hat Linux 6.1:



i386:

http://updates.redhat.com/6.1/i386/netscape-common-4.76-0.6.2.i386.rpm

http://updates.redhat.com/6.1/i386/netscape-communicator-4.76-0.6.2.i386.rpm

http://updates.redhat.com/6.1/i386/netscape-navigator-4.76-0.6.2.i386.rpm



sources:

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



Red Hat Linux 6.2:



alpha:

http://updates.redhat.com/6.2/alpha/netscape-common-4.76-0.6.2.alpha.rpm

http://updates.redhat.com/6.2/alpha/netscape-communicator-4.76-0.6.2.alpha.rpm

http://updates.redhat.com/6.2/alpha/netscape-navigator-4.76-0.6.2.alpha.rpm



i386:

http://updates.redhat.com/6.2/i386/netscape-common-4.76-0.6.2.i386.rpm

http://updates.redhat.com/6.2/i386/netscape-communicator-4.76-0.6.2.i386.rpm

http://updates.redhat.com/6.2/i386/netscape-navigator-4.76-0.6.2.i386.rpm



sources:

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

http://updates.redhat.com/6.2/SRPMS/netscape-4.76-0.6.2.src.rpm



Red Hat Linux 7.0:



i386:

http://updates.redhat.com/7.0/i386/netscape-common-4.76-1.i386.rpm

http://updates.redhat.com/7.0/i386/netscape-communicator-4.76-1.i386.rpm

http://updates.redhat.com/7.0/i386/netscape-navigator-4.76-1.i386.rpm



sources:

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

http://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  



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:



http://ftp.freebsd.org/pub/FreeBSD/CERT/advisories/FreeBSD-SA-00%3A66.netscape.asc





Copyright(c) 2000 Red Hat, Inc.