[16067] in bugtraq
[TL-Security-Announce] netscape TLSA2000017-1
daemon@ATHENA.MIT.EDU (Joe Little)
Wed Aug 2 19:42:45 2000
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Errors-To: tl-security-announce-admin@www1.turbolinux.com
Message-ID: <Pine.LNX.4.20.0008021333470.807-100000@eva.dev.us.tlan>
Date: Wed, 2 Aug 2000 13:34:36 -0700
Reply-To: tl-security-announce@www1.turbolinux.com
From: Joe Little <jlittle@TURBOLINUX.COM>
X-To: tl-security-announce@turbolinux.com
To: BUGTRAQ@SECURITYFOCUS.COM
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___________________________________________________________________________
TurboLinux Security Announcement
Package: netscape-4.73 and earlier
Date: Wednesday August 2 12:00 PDT 2000
Affected TurboLinux versions: 6.0.5 and earlier
Vulnerability Type: malicious remote website exploit possible
TurboLinux Advisory ID#: TLSA2000017-1
Credits: netscape.ad-1.00-07
___________________________________________________________________________
A security hole was discovered in the package mentioned above. Please
update the package in your installation as soon as possible or disable the
service.
___________________________________________________________________________
1. Problem Summary
Current and previous versions of netscape communicator have a buffer overflow
condition in its handling of JPEG files. Specifically, it trusts the purported
length of JPEG files provided by the header and can be mislead into reading
arbitrary amounts of data, leading to the overwriting of memory.
2. Impact
A web site could contain malicious code which would enable remote execution
or other malicious behavior as the user of netscape on the client's machine.
3. Solution
Please upgrade your packages to match the new revision
Update the packages from our ftp server by running the following command:
rpm -Fv ftp_path_to_filename
Where ftp_path_to_filename is the following:
ftp://ftp.turbolinux.com/pub/updates/6.0/security/netscape-communicator-4.74-2.i386.rpm
The source RPM can be downloaded here:
ftp://ftp.turbolinux.com/pub/updates/6.0/SRPMS/netscape-communicator-4.74-2.src.rpm
**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 checksum of the update before you install:
MD5 sum Package Name
- - ---------------------------------------------------------------------------
940ec5bccc73166938e1b75cb384de19 netscape-communicator-4.74-2.i386.rpm
dcc0a1890e0123efd3cd86efbc276942 netscape-communicator-4.74-2.src.rpm
___________________________________________________________________________
These packages are GPG signed by Turbolinux for security. Our key
is available here:
http://www.turbolinux.com/security/tlgpgkey.asc
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:
http://www.turbolinux.com/security
If you want to report vulnerabilities, please contact:
rt-security@turbolinux.com
___________________________________________________________________________
Subscribe to the TurboLinux Security Mailing lists:
TL-security - A moderated list for discussing security issues in TurboLinux
products.
Subscribe at http://www.turbolinux.com/mailman/listinfo/tl-security
TL-security-announce - An announce-only mailing list for security updates
and alerts.
Subscribe at http://www.turbolinux.com/mailman/listinfo/tl-security-announce
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