bugtraq - RE: EEYE: Microsoft ASN.1 Library Length Overflow Heap Corruption

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Date: Tue, 10 Feb 2004 11:36:20 -0800 (PST)
From: Joe Blatz <sd_wireless@...oo.com>
To: mmaiffret@...e.com, BUGTRAQ@...urityfocus.com
Subject: RE: EEYE: Microsoft ASN.1 Library Length Overflow Heap Corruption


In the security bulletin published by MS it states,
"In the most likely exploitable scenario, an attacker
would have to have direct access to the user's
network."

The bulletin published by eEye states "...applications
that make use of certificates (SSL, digitally-signed
e-mail, signed ActiveX controls, etc.) [are
affected]".

I see a big disconnect there. Can you address this?
Also, how would this potentially affect sites that are
using an MS VPN solution?


> -----Original Message-----
> From: Marc Maiffret [mailto:mmaiffret@...e.com] 
> Sent: Tuesday, February 10, 2004 10:20 AM
> To: BUGTRAQ@...urityfocus.com
> Subject: EEYE: Microsoft ASN.1 Library Length
> Overflow Heap Corruption
> 
> Microsoft ASN.1 Library Length Overflow Heap
> Corruption
> 
> Release Date:
> February 10, 2004
> 
> Date Reported:
> July 25, 2003
> 
> Severity:
> High (Remote Code Execution)
> 
> Systems Affected:
> Microsoft Windows NT 4.0 (all versions)
> Microsoft Windows 2000 (SP3 and earlier)
> Microsoft Windows XP (all versions)
> 
> Software Affected:
> Microsoft Internet Explorer
> Microsoft Outlook
> Microsoft Outlook Express
> Third-party applications that use certificates
> 
> Services Affected:
> Kerberos (UDP/88)
> Microsoft IIS using SSL
> NTLMv2 authentication (TCP/135, 139, 445)

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