Title: AOL Instant Messenger Font Denial of Service 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 character fonts followed by the '<hr>' HTML comment, is sent and received by an AIM recipient. AIM will return a font error message and may require a restart of the application in order to regain normal functionality.
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 should be noted that HTML comments other than '<hr>' could successfully exploit this issue.
In addition, this vulnerability may also affect 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 4.4.0
- AOL Instant Messenger 4.5.0
- AOL Instant Messenger 4.6.0
- AOL Instant Messenger 4.7.0
References:
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