CVE-2010-20119: Stack Overflow

Description

CommuniCrypt Mail versions up to and including 1.16 contains a stack-based buffer overflow vulnerability in its ANSMTP.dll and AOSMTP.dll ActiveX controls, specifically within the AddAttachments() method. This method fails to properly validate the length of input strings, allowing data to exceed the bounds of a fixed-size stack buffer. When invoked with an overly long string, the control can corrupt adjacent memory structures, including exception handlers, leading to potential control flow disruption.

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Weakness Type (CWE)

CWE-121 CWE-121

References

Other References

https://raw.githubusercontent.com/rapid7/metasploit-framework/master/modules/exploits/windows/browser/communicrypt_mail_activex.rb https://softwarelode.com/4185/details-communicrypt-mail.html https://www.broadcom.com/support/security-center/attacksignatures/detail?asid=24374 https://www.exploit-db.com/exploits/12663 https://www.fortiguard.com/encyclopedia/ips/23099 https://www.vulncheck.com/advisories/communicrypt-mail-activex-control-buffer-overflow

Frequently Asked Questions

What is CVE-2010-20119? +

CommuniCrypt Mail versions up to and including 1.16 contains a stack-based buffer overflow vulnerability in its ANSMTP.dll and AOSMTP.dll ActiveX controls, specifically within the AddAttachments() method. This method fails to properly validate the length of input strings, allowing data to exceed the bounds of a fixed-size stack buffer. When invoked with an overly long string, the control can corrupt adjacent memory structures, including exception handlers, leading to potential control flow disruption.

How do I check if I'm vulnerable to CVE-2010-20119? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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CVE-2010-20119