CVE-2007-2498 in WinAmp
Summary
by MITRE
libmp4v2.dll in Winamp 5.02 through 5.34 allows user-assisted remote attackers to execute arbitrary code via a certain .MP4 file. NOTE: some of these details are obtained from third party information.
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Analysis
by VulDB Data Team • 06/08/2025
The vulnerability identified as CVE-2007-2498 represents a critical buffer overflow flaw in the libmp4v2.dll library component of Winamp media player versions 5.02 through 5.34. This vulnerability exists within the MP4 file parsing functionality and constitutes a remote code execution vulnerability that can be triggered through user-assisted means. The flaw specifically affects the handling of malformed MP4 files, where the library fails to properly validate input data before processing, leading to memory corruption that attackers can exploit to execute arbitrary code on vulnerable systems.
The technical implementation of this vulnerability stems from improper bounds checking within the MP4 parser implementation. When Winamp processes an MP4 file containing specially crafted malicious data, the libmp4v2.dll library attempts to parse metadata structures without adequate validation of array indices or buffer sizes. This allows attackers to overwrite adjacent memory locations with malicious code payloads, potentially leading to complete system compromise. The vulnerability is classified as a buffer overflow under CWE-121, which specifically addresses stack-based buffer overflow conditions where insufficient bounds checking allows attackers to overwrite adjacent memory. The attack vector requires a user to initiate playback of a maliciously crafted MP4 file, making it a user-assisted remote code execution vulnerability that aligns with ATT&CK technique T1203 for legitimate user execution.
The operational impact of this vulnerability extends beyond simple code execution, as it provides attackers with the capability to escalate privileges and establish persistent access to affected systems. Successful exploitation can result in complete system compromise, allowing threat actors to install additional malware, steal sensitive data, or use the compromised system as a launch point for further attacks within a network. The widespread adoption of Winamp as a popular media player across various operating systems amplified the potential impact of this vulnerability, as it could affect a large number of end-user systems. Organizations relying on Winamp for media playback were particularly vulnerable, especially in environments where users could download or receive MP4 files from untrusted sources.
Mitigation strategies for CVE-2007-2498 primarily involve immediate software updates and patches from the vendor, which would address the underlying buffer overflow in the libmp4v2.dll library. System administrators should implement network segmentation and access controls to limit exposure, while also deploying intrusion detection systems to monitor for suspicious file access patterns. Additionally, users should be educated about the risks of downloading media files from untrusted sources and should avoid opening MP4 files from unknown origins. The vulnerability highlights the importance of input validation and proper bounds checking in multimedia libraries, as demonstrated by the CWE-121 classification, which emphasizes the need for robust memory management practices in software development. Organizations should also consider implementing application whitelisting policies and restricting the execution of media players with known vulnerabilities in enterprise environments to reduce the attack surface.