CommuniCrypt Mail <= 1.16 ANSMTP/AOSMTP ActiveX Control Buffer Overflow

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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栈缓冲区溢出

CommuniCrypt Mail 安全漏洞

CommuniCrypt Mail是CommuniCrypt公司的一款加密邮件客户端。 CommuniCrypt Mail 1.16及之前版本存在安全漏洞，该漏洞源于ANSMTP.dll和AOSMTP.dll ActiveX控件中AddAttachments方法未验证输入长度，可能导致栈缓冲区溢出。

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