CVE-2006-5502 in AOL
Summary
by MITRE
Heap-based buffer overflow in the AOL.PicDownloadCtrl.1 ActiveX control (YGPPicDownload.dll) 9.2.3.0 in America Online (AOL) 9.0 Security Edition allows remote attackers to execute arbitrary code via the AddPictureNoAlbum method, a different vulnerability than CVE-2006-5501.
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Analysis
by VulDB Data Team • 04/25/2026
The vulnerability described in CVE-2006-5502 represents a critical heap-based buffer overflow affecting the AOL.PicDownloadCtrl.1 ActiveX control component within America Online 9.0 Security Edition. This specific ActiveX control, identified through the YGPPicDownload.dll library version 9.2.3.0, presents a significant security risk due to its improper input validation mechanisms during the execution of the AddPictureNoAlbum method. The flaw exists within the heap memory management structure of the ActiveX control, creating an exploitable condition that remote attackers can leverage to execute arbitrary code on vulnerable systems.
The technical nature of this vulnerability falls under the CWE-121 heap-based buffer overflow category, which occurs when a program writes data beyond the boundaries of a heap-allocated buffer. In this case, the AddPictureNoAlbum method fails to properly validate the length of input data before copying it into a fixed-size buffer allocated on the heap. This insufficient bounds checking creates a condition where an attacker can overflow the buffer and overwrite adjacent memory locations, potentially including return addresses or other critical program structures. The vulnerability is particularly dangerous because it allows remote code execution without requiring local system access, making it an attractive target for attackers seeking to compromise systems through web-based attacks.
The operational impact of this vulnerability extends beyond simple remote code execution, as it represents a complete compromise of system security for any user running the affected AOL 9.0 Security Edition software. Attackers can exploit this vulnerability by crafting malicious web content or email attachments that trigger the vulnerable AddPictureNoAlbum method when the ActiveX control is instantiated. The attack vector typically involves web browsers that have ActiveX support enabled, making the exploit surface quite broad across various Windows environments. Once successfully exploited, the attacker gains full system privileges, potentially allowing for data theft, system monitoring, or further network penetration activities. This vulnerability directly aligns with ATT&CK technique T1190 for Exploit Public-Facing Application and T1059 for Command and Scripting Interpreter, demonstrating the comprehensive attack surface this flaw provides.
Mitigation strategies for CVE-2006-5502 require immediate action through multiple defensive layers. The most effective approach involves disabling or removing the vulnerable ActiveX control from affected systems, particularly in enterprise environments where the AOL software is deployed. System administrators should implement browser security policies that prevent automatic execution of ActiveX controls, requiring user consent before loading such components. Additionally, the vulnerability highlights the importance of keeping software updated, as newer versions of AOL would have addressed this specific heap overflow issue through proper input validation and memory management practices. Network-based mitigations can include firewall rules that block access to known malicious domains that might serve exploit payloads, while endpoint protection solutions should be configured to monitor for suspicious ActiveX behavior. The vulnerability also underscores the broader security principle that ActiveX controls, due to their privileged execution model, should be carefully scrutinized and limited in their deployment across enterprise networks, as they represent a significant attack surface that can be exploited through various remote attack vectors.