Title: AOL AIM 'sipXtapi.dll' Multiple Buffer Overflow Vulnerabilities
Severity: HIGH
Description:
AOL AIM is a instant-messaging client.
Since it fails to perform adequate boundary checks on user-supplied data, the application is prone to these buffer-overflow vulnerabilities:
1. A heap-based buffer-overflow issue in the SIP protocol implementation library ('sipXtapi.dll') occurs because of a signedness error when a crafted RTCP sender report packet is sent to the application. for an exploit to succeed, an attacker must entice a user into accepting a Video Messaging session.
2. A heap-based buffer-overflow issue in the 'sipXtapi.dll' library occurs when a crafted RTP header 'Extension Length' is sent to the application. To be exploited. a victim must have an active voice session.
Successful exploits may allow attackers to execute arbitrary code with the privileges of a user running the software or cause denial-of-service conditions.
Reports indicate that versions prior to AOL AIM 6.8.7.7 are vulnerable.
Affected Products:
- AOL Instant Messenger 6.8
References:
- AOL: AOL Instant Messenger Home Page
- Zero Day Initiative: AOL AIM SIPFoundry sipXtapi RTCP Processing Heap Overflow Vulnerability
- Zero Day Initiative: AOL AIM SIPFoundry sipXtapi RTP Processing Heap Overflow Vulnerability
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