Secunia Research has discovered a vulnerability in Free Download Manager, which can be exploited by malicious people to compromise a user’s system. The vulnerability is caused due to a boundary error in the Remote Control Server when processing “Authorization” headers in HTTP requests. This can be exploited to cause a stack-based buffer overflow via an HTTP request containing an overly long “Authorization” header. Successful exploitation allows execution of arbitrary code. Free Download Manager versions 2.5 Build 758 and 3.0 Build 844 are affected.
You can download this advisory from the following link: https://packetstormsecurity.com/files/download/74557/secuniadmrc-overflow.txt
Source: https://packetstormsecurity.com/files/74557/Free-Download-Manager-Remote-Control-Server-Buffer-Overflow.html