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TurboLinux Security Announcement: netscape-communicator 4.75-1 and earlier

Feb 08, 2001, 22:20 (0 Talkback[s])

Date: Thu, 8 Feb 2001 13:59:42 -0800
From: security@turbolinux.com
To: tl-security-announce@www1.turbolinux.com
Subject: [TL-Security-Announce] netscape-communicator-4.76-5 TLSA2000020-2

                        TurboLinux Security Announcement

        Vulnerable Packages: netscape-communicator 4.75-1 and earlier
        Date: 02/05/2001 5:00 PDT

        Affected TurboLinux versions:TL 6.1 WorkStation,
                                     All TurboLinux versions 6.0.5
                                     and earlier

        TurboLinux Advisory ID#:  TLSA2000020-2

        Credits: Vulnerability discovered by Michal Zalewski

A security hole was discovered in the package mentioned above. Please update the package in your installation as soon as possible.

1. Problem Summary(From the Red Hat, Inc. Security Advisory)

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.

2. Solution

Update the package from our ftp server by running the following command:

rpm -Uvh --nodeps --force ftp_path_to_filename

Where ftp_path_to_filename is the following:


The source RPM can be downloaded here:


**Note: You must rebuild and install the RPM if you choose to download and install the SRPM. Simply installing the SRPM alone WILL NOT CLOSE THE SECURITY HOLE.

Please verify the MD5 checksums of the updates before you install:

  MD5 sum                               Package Name

d69902adc2de22300c81f1c3c080f8f3 netscape-communicator-4.76-5.i386.rpm
df53191a6c10ba901fba3f259ef0d987 netscape-communicator-4.76-5.src.rpm

These packages are GPG signed by Turbolinux for security. Our key is available here:


To verify a package, use the following command:

rpm --checksig name_of_rpm

To examine only the md5sum, use the following command:

rpm --checksig --nogpg name_of_rpm

**Note: Checking GPG keys requires RPM 3.0 or higher.

You can find more updates on our ftp server:

ftp://ftp.turbolinux.com/pub/updates/6.0/security/ for TL6.0 Workstation and Server security updates
ftp://ftp.turbolinux.com/pub/updates/4.0/security/ for TL4.0 Workstation and Server security updates

Our webpage for security announcements:


If you want to report vulnerabilities, please contact:


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