AOL Instant Messenger getfile long screenname buffer overflow

aim-getfile-screenname-bo (13443)

High Risk

Description:

AOL Instant Messenger (AIM) is vulnerable to a buffer overflow. By creating a malicious aim:getfile URL containing a long screenname, a remote attacker can overflow a buffer and execute arbitrary code on the system, once the URL is clicked and the victim downloads the malicious file.

*CVSS:

Base Score:	5.6
Access Vector:	Remote
Access Complexity:	High
Authentication:	Not Required
Confidentiality Impact:	Partial
Integrity Impact:	Partial
Availability Impact:	Partial
Temporal Score:	4.1
Exploitability:	Unproven
Remediation Level:	Official-Fix
Report Confidence:	Confirmed

Consequences:

Gain Access

Remedy:

Upgrade to the latest version of AIM (5.5.3415 Beta or later), available from the AOL Instant Messenger Web site. See References.

References:

• AOL Instant Messenger Web site: Download AIM Beta for Windows.
• NTBugTraq Mailing List, Wed Oct 15 2003 - 03:34:33 CDT: Buffer Overflow in AOL Instant Messager.
• BID-8825: AOL Instant Messenger Getfile Screenname Buffer Overrun Vulnerability
• CVE-2003-1503: Buffer overflow in AOL Instant Messenger (AIM) 5.2.3292 allows remote attackers to execute arbitrary code via an aim:getfile URL with a long screen name.

Platforms Affected:

• AOL AOL Instant Messenger 5.2.3292

Reported:

Oct 15, 2003

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The information within this database may change without notice. Use of this information constitutes acceptance for use in an AS IS condition. There are NO warranties, implied or otherwise, with regard to this information or its use. Any use of this information is at the user's risk. In no event shall IBM be held liable for any damages whatsoever arising out of or in connection with the use or spread of this information.

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