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Secunia Advisory SA24199

EasyMail Objects IMAP4 and SMTP Components Buffer Overflows
Secunia Advisory SA24199
Secunia VIM 4.0 - Free Trial
Release Date 2007-02-16
Last Update 2010-03-08
   
Popularity 14,615 views
Comments 6 comments

Criticality level Highly criticalHighly critical
Impact System access
Where From remote
Authentication level This information is available to Secunia VIM customers
   
Report reliability This information is available to Secunia VIM customers
Solution Status Vendor Patch
   
   
3rd party PoC/exploit Link available in Customer Area
Systems affected This information is available to Secunia VIM customers
Approve distribution This information is available to Secunia VIM customers
   
Software:
EasyMail IMAP4 Object ActiveX Control 6.x
EasyMail Objects 6.x
EasyMail SMTP Object ActiveX Control 6.x

Secunia CVSS Score This information is available to Secunia VIM Customers
CVE Reference(s) CVE-2007-1029 CVSS score available to Secunia VIM customers
CVE-2007-4607 CVSS score available to Secunia VIM customers
CVE-2009-4663 CVSS score available to Secunia VIM customers
  

Description

Some vulnerabilities have been reported in EasyMail Objects, which can be exploited by malicious people to compromise a user's system.

1) A boundary error exists within the IMAP4 component of EasyMail Objects when processing arguments passed to the "Connect" method. This can be exploited to cause a stack-based buffer overflow via an overly long (greater than 500 bytes) string passed as the host name argument to the said method.

2) A boundary error exists within the SMTP component of EasyMail Objects when processing arguments passed to the "SubmitToExpress()" method. This can be exploited to cause a stack-based buffer overflow by passing an overly long argument to the affected method.

3) A boundary error exists in the EasyMail.IMAP4.6 ActiveX control (emimap4.dll) when handling the "LicenseKey" property. This can be exploited to cause a stack-based buffer overflow by assigning an overly long string to the "LicenseKey" property.

4) A boundary error exists in the EasyMail.SMTP.6 ActiveX control (emsmtp.dll) when handling calls to the "AddAttachment()" method. This can be exploited to cause a stack-based buffer overflow by passing an overly long argument to the affected method.

Vulnerabilities #2 through #4 are confirmed in emsmtp.dll and emimap4.dll version 6.0.2.0. Other versions may also be affected.

Successful exploitation allows execution of arbitrary code and requires that the user is e.g. tricked into visiting a malicious web site.


Solution
Update to version 6.5.

Provided and/or discovered by
1) Paul Craig, Security-Assessment.com
2) Independently discovered by rgod and Will Dormann of the CERT/CC
3) Francis Provencher (Protek Research Lab's)
4) bmgsec

Changelog
Further details available to Secunia VIM customers

Original Advisory
1) Security-Assessment.com:
http://security-assessment.com/files/advisories/easymail_advisory.pdf

2) http://milw0rm.com/exploits/4328
3) http://milw0rm.com/exploits/9684
4) http://www.bmgsec.com.au/advisory/48/

Other references
Further details available to Secunia VIM customers

Deep Links
Links available to Secunia VIM customers


Do you have additional information related to this advisory?

Please provide information about patches, mitigating factors, new versions, exploits, faulty patches, links, and other relevant data by posting comments to this Advisory. You can also send this information to vuln@secunia.com

Subject: EasyMail Objects IMAP4 and SMTP Components Buffer Overflows
 
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