Title: AOL Instant Messenger HTML Comments DoS Vulnerability
Severity: MODERATE
Description:
AOL Instant Messenger (AIM) is a real time messaging service for on line users.
A vulnerability exists in AOL Instant Messenger (AIM) which could cause the AIM client to stop responding.
Attacks can be launched if an instant message containing an unusual number of HTML comments (approx 640 '<!--' sequences), is sent and received by an AIM recipient. Restart of the application may be necessary in order to regain normal functionality. This has also been known to work when using the chat invite message function.
This issue may be the result of an unchecked buffer. If this is the case, there is a possibility that arbitrary code may be executed on the vulnerable target. However, this has not yet been confirmed.
It has been reported that the majority of AOL's versions of AIM is subject to this vulnerability. This reportedly, includes Netscape's AIM client.
Affected Products:
- AOL Instant Messenger 4.0.0
- AOL Instant Messenger 4.1.0
- AOL Instant Messenger 4.2.0
- AOL Instant Messenger 4.3.0
- AOL Instant Messenger 4.3.2229
- AOL Instant Messenger 4.4.0
- AOL Instant Messenger 4.5.0
- AOL Instant Messenger 4.6.0
- AOL Instant Messenger 4.7.0
- AOL Instant Messenger 4.7.2480
References:
- AOL: AOL Instant Messenger Home Page
- AngryPacket: new 0day AIM DoS released
- Matthew Sachs <matthewg@zevils.com>: [ADVISORY] AOL Instant Messenger DoS
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