Title: MythControlServer SendToMythTV() Buffer Overflow Vulnerability
Severity: HIGH
Description:
MythControl enables a Windows Mobile Smartphone to be used as a Bluetooth-based remote control for MythTV. MythControlServer is the daemon component of the application.
MythControlServer is prone to a remote buffer-overflow vulnerability when handling commands received over Bluetooth. The application fails to properly bounds-check user-supplied input data before copying it to a fixed-sized stack buffer.
The server application listens for incoming client connections using the Bluez RFCOMM interface. These connections contain commands that are then passed to backend MythTV components.
This issue presents itself when the application 'MythControlServer.c' handles a maliciously crafted command. If the 'sendToMythTV()' command contains a string that is greater than a fixed-sized memory buffer, adjacent memory regions will be overwritten with attacker-supplied data.
This vulnerability allows remote attackers to execute arbitrary machine code in the context of the affected application.
MythControl/MythControlServer 1.0 and prior versions are vulnerable to this issue.
Affected Products:
- MythControl MythControl 1.0
References:
- MythControl: Product Homepage
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