J-Security Center

Title: Melange Chat Systems melange.conf Buffer Overflow Vulnerability

Severity: MODERATE

Description:

Melange Chat System is a chat application developed by Christian Walter. Currently support for this program is no longer available.

An issue has been reported in Melange, which could allow an attacker to initiate a buffer overflow.

Reportedly, including an unusally long line in the configuration file '/etc/melange.conf' could cause the buffer to overflow.

This overflow could overwrite stack variables, including the return address, and be used to execute arbitrary code as the server process. However, sending random data could cause the application to crash.

Affected Products:

  • Melange Melange Chat System 2.0.2 Beta 2

References:

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