VULHUB ™

It has been reported that mIRC may be prone to a remote buffer overflow vulnerability due to insufficient boundary checking. The issue is reported to present itself when the client attempts to connect to a remote server. During the connection process the client is reported to a send a USERHOST request that is expected to be less than 110 bytes. A buffer overflow condition may occur if the server responds with a request that is larger than 110 bytes. Successful exploitation of this issue may allow an attacker to execute arbitrary code in the context of the client in order to gain unauthorized access to a vulnerable system. mIRC versions 6.01 to 6.1 have been reported to be prone to this issue, however other versions may be affected as well.

It has been reported that mIRC may be prone to a remote buffer overflow vulnerability due to insufficient boundary checking. The issue is reported to present itself when the client attempts to connect to a remote server. During the connection process the client is reported to a send a USERHOST request that is expected to be less than 110 bytes. A buffer overflow condition may occur if the server responds with a request that is larger than 110 bytes. Successful exploitation of this issue may allow an attacker to execute arbitrary code in the context of the client in order to gain unauthorized access to a vulnerable system. mIRC versions 6.01 to 6.1 have been reported to be prone to this issue, however other versions may be affected as well.