CVE-2010-2586 in WinAmp
Summary
by MITRE
Multiple integer overflows in in_nsv.dll in the in_nsv plugin in Winamp before 5.6 allow remote attackers to execute arbitrary code via a crafted Table of Contents (TOC) in a (1) NSV stream or (2) NSV file that triggers a heap-based buffer overflow.
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Analysis
by VulDB Data Team • 01/23/2025
The vulnerability identified as CVE-2010-2586 represents a critical security flaw in the Winamp media player software, specifically within the in_nsv.dll plugin responsible for handling NSV (Nullsoft Streaming Video) format files and streams. This issue affects Winamp versions prior to 5.6 and constitutes a serious remote code execution vulnerability that could be exploited by malicious actors to gain unauthorized control over affected systems. The vulnerability stems from improper input validation and memory handling within the NSV parsing functionality, creating a pathway for attackers to craft specially designed NSV content that triggers memory corruption.
The technical implementation of this vulnerability involves integer overflow conditions that occur when processing the Table of Contents (TOC) data structure within NSV streams or files. When the in_nsv plugin processes a crafted TOC, the integer overflows result in heap-based buffer overflow conditions that can be leveraged to overwrite critical memory locations. This type of vulnerability falls under CWE-190, which specifically addresses integer overflow and underflow conditions, and more broadly aligns with CWE-121, heap-based buffer overflow scenarios. The flaw demonstrates how insufficient input validation can lead to memory corruption that bypasses normal execution flow and allows arbitrary code injection.
From an operational perspective, this vulnerability creates significant risk for end users who may encounter malicious NSV content through various attack vectors including email attachments, malicious websites, or peer-to-peer file sharing networks. The remote code execution capability means that attackers could potentially install malware, steal sensitive data, or establish persistent access to compromised systems without requiring user interaction beyond playing the malicious media content. The attack surface is particularly concerning given Winamp's widespread adoption across different user bases and its common use in various entertainment and media consumption scenarios.
The exploitation of this vulnerability aligns with several tactics described in the MITRE ATT&CK framework, particularly those related to initial access through malicious files and privilege escalation through code execution. Attackers could leverage this vulnerability as part of broader attack campaigns targeting media player users, potentially using it as a stepping stone for more sophisticated attacks. Organizations and individuals should consider this vulnerability as part of their broader security posture assessment, particularly in environments where media file handling is common. The remediation approach involves updating to Winamp version 5.6 or later, which includes proper input validation and memory handling fixes that prevent the integer overflow conditions from occurring.
This vulnerability demonstrates the importance of proper input validation in multimedia processing libraries and highlights the risks associated with legacy software components that may not receive regular security updates. The integer overflow conditions in this case were particularly dangerous because they occurred in a plugin architecture that could be loaded automatically when processing various media formats, making the attack surface broader than initially apparent. Security practitioners should emphasize the need for regular software updates and proper security testing of multimedia handling components to prevent similar vulnerabilities from being exploited in other applications. The vulnerability also underscores the importance of implementing robust memory safety mechanisms and input sanitization practices in media processing software to prevent heap corruption scenarios that could lead to arbitrary code execution.