Date:         Sat, 26 Aug 2000 12:11:58 -0000
From: deepquest@NETSCAPE.NET
Subject:      PGP issue update
To: BUGTRAQ@SECURITYFOCUS.COM

from http://www.pgp.com/other/advisories/adk.asp



"On the morning of Thursday, August 24 researchers in Germany 
discovered a bug in PGP versions 5.5 through 6.5.3 regarding 
how those versions handle unauthorized Additional Decryption 
Key additions to the unhashed/unsigned areas of PGP keys. We 
are currently working on this issue and consider it our top 
priority. A formal advisory from PGP Security and hotfixes 
for this issue will be made available as soon as possible. 
Additional information about this issue is available from 
CERT. 

                              Below is a message from Phil 
Zimmermann regarding this issue (a PGP signed version is 
available here). Please refer back to this page in the future 
for the latest information regarding this issue. 

We at NAI/PGP Security regret this important bug in the ADK 
feature that has been described on various Internet postings 
today (Thursday 24 Aug). We were made aware of this bug in 
PGP early this morning.  We are responding as fast as we can, 
and expect to have new 6.5.x releases out to fix this bug 
late Thursday evening.  The MIT web site should have a new 
PGP 6.5.x freeware release early Friday, and the NAI/PGP web 
site should have patches out for the commercial releases at 
about the same time. As of this afternoon (Thursday), the PGP 
key server at PGP already filters out keys with the bogus ADK 
packets. We expect to have fixes available for the other key 
servers that run our software by tomorrow. We have also 
alerted the other vendors that make PGP key server software 
to the problem, and expect Highware/Veridis in Belgium to 
have their key servers filtering keys the same way by Friday. 

The fixes that we are releasing for the PGP client software 
filters out the offending ADK packets. We already warn the
users whenever they are about to use an ADK, even in the 
normal case. 
 We will have new information as soon as it becomes available 
at http://www.pgp.com. 

                               Philip Zimmermann 
                               prz@pgp.com
                               19:00 PDT Thursday 24 Aug 
2000"

PGP updated softwares (http://web.mIt.edu/network/pgp.html):
---------------------
PGP Freeware v6.5.8 is now available for Windows 
95/98/NT/2000! and the Macintosh
PGP Freeware v6.5.8 is MacOS 7.6.1+
PGP Command Line Freeware v6.5.2 is now available for 
AIX/HP-UX/Linux/Solaris!
PGP Certificate Server Freeware v2.5.1 is now available for 
Windows NT/2000 and Solaris!

Deepquest
"Ubi solitudinem faciunt, pacem appellant"
www.deepquest.pf