E-mail Virus Danger

fish fish@communique.net
Sat, 01 Aug 1998 13:41:14 -0500


I'm not on the list anymore, so I don't know if this information has
been sent to you.  But it is serious enough to mail it anyway.  I am
going to try to download a patch for communicator Monday


NATIONAL NEWS


Security flaw lets
computer virus
in through e-mail

Microsoft, Netscape users at risk

By JOHN MARKOFF
Copywright 1998, The New York Times'

   SAN FRANCISCO - A seri-
ous security flaw has been dis-
covered in popular e-mail
programs published by Microsoft
Corp. and Netscape Communica-
tions Corp. that would permit a
malicious person to send a mes-
sage containing a virus that
could crash a computer, destroy
or even steal data.
  So far, security tests have
shown that the flaw exists in
three of the four most popular e-
mail programs, used by perhaps
tens of millions of people around
the world: Microsoft's Outlook
Express and Outlook 98 and
Netscape's Web browser, Nav-
igator, which is part of its Com-
municator suite of Internet
programs.
  While Microsoft is providing
fixes, the flaw is particularly
worrisome in the Microsoft Out-
look 98 program, which com-
bines e-mail with a scheduler,
contact list, notes and other
tasks, because this software al-
lows an illicit program attached
to a piece of e-mail to execute
without any activity on the part
of the person using the target
computer. Most computer vi-
ruses can infect a machine only
when the user opens an infected
file or attempts to run an in-
fected program.
  What is more, Microsoft ad-
mitted Tuesday that the first fix
that was offered on the compa-
ny's Web site, on Monday, does
not repair the problem. Anyone
who downloaded and installed
that fix will have to return to the
Web site and download and in-
stall the new version.
  Microsoft reported Tuesday
that users of its Outlook Express
program, the e-mail software
supplied with Windows 95 and
Windows 98, would have to open
an infected attachment before a
malicious program could be exe-
cuted.
  Netscape officials sa~d Tue~-
nicator program wo~~III~d also have
_
to open a ifie before a virus could
activate. The extra danger of the
Outlook 98 program is that it al-
lows a malicious e-mail attach-
ment to execute at the moment
the e-mail messag~ arrives at the
computer.
  Microsoft officials said the
flaw was present in versions of
the Outlook Express shipped
with Microsoft Internet Explorer
4.0 or 4.01 on Windows 98, Win-
dows 95,. Windows NT 4.0 and
Windows NT for DEC Alpha, as
well as in versions for Macintosh
and UNIX machines.
  Windows 3.1 and Windows
NT 3.51 versions of Internet Ex-
plorer are not affected.
  In all, Microsoft said Tuesday
that it had distributed about 2

million copies of the more seri-
ously flawed Outlook 98 program
and at least a million copies of
Outlook Express.
  Netscape could only report
that 70 million copies of its
Navigator/Communicator
software had been downloaded,
but the company could not deter-
mine how many people used the
browser's  built-in  e-mail
software. Many people use sepa-
rate, more sophisticated pro-
grams than those shipped with
browsers.
  The most popular of these is
Eudora, a mail program pub-
lished by the Qualcomm Corp.
Security researchers said Eudora
was not vulnerable to the prob-
lem.
  Although there is no evidence
that any computer virus has
been distributed that exploits
this newly discovered vulnerabil-
ity, security experts say that
since word of the flaw leaked on
the Internet over the weekend,
virus makers are undoubtedly
aware of it and will work quickly
to take advantage of it.
  As of Tuesday, Microsoft was
already providing "patches,"
small programs that repair the
flaw in e-mail programs in ques-
tion for its Windows and NT op-
erating system. The company
said that fixes for Macintosh and
Unix computers will be forth-
coming.
  Microsoft officials said the
company's software development
group was attempting to deter-
mine how the flawed code made
_
it into their software.
  Netscape officials posted a
notice about the problem on
their Web site Tuesday, noting
that the flaw affects only the
Windows and Windows NT ver-
sions of Navigator, not those dis-
tributed for Macintosh or UNIX
machines. The company said it
would post a patch for its Win-
dows and NT versions within
two weeks. Neither company has
any plans to notify users of the
danger and the availability of
patches other than the notices.





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