Melange Chat System /yell Remote Buffer Overflow Vulnerability

BID:4508

Info

Melange Chat System /yell Remote Buffer Overflow Vulnerability

Bugtraq ID: 4508
Class: Boundary Condition Error
CVE: CVE-2002-0552
Remote: Yes
Local: No
Published: Apr 14 2002 12:00AM
Updated: Jul 11 2009 11:56AM
Credit: Discovered by Leon Harris <[email protected]>.
Vulnerable: Melange Melange Chat System 2.0.2 Beta 2
Not Vulnerable:

Discussion

Melange Chat System /yell Remote Buffer Overflow Vulnerability

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

Due to inadequate bounds checking in Melange, it is possible for users to initiate a buffer overflow.

Submitting an unusually large /yell argument composed of arbitrary data, could cause the overflow to occur.

Exploit / POC

Melange Chat System /yell Remote Buffer Overflow Vulnerability

dvdman &lt;[email protected]&gt; has provided the following proof of concept:

Solution / Fix

Melange Chat System /yell Remote Buffer Overflow Vulnerability

Solution:
The discoverer of this issue Leon Harris <[email protected]>, has released a patch for this issue. Administrators who intend to apply this patch should be aware that this is an unofficial patch, and should be handled accordingly. The patch is available in the message listed in the references section of this alert.

The SecurityFocus staff are not aware of any vendor-supplied patches for this issue. If you feel we are in error or are aware of more recent information, please mail us at: [email protected] <mailto:[email protected]>.

References

Melange Chat System /yell Remote Buffer Overflow Vulnerability

References:

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