CVE-2010-10017 in WM Downloader
Summary
by MITRE • 08/30/2025
WM Downloader version 3.1.2.2 is vulnerable to a buffer overflow when processing a specially crafted .m3u playlist file. The application fails to properly validate input length, allowing an attacker to overwrite structured exception handler (SEH) records and execute arbitrary code. Exploitation occurs locally when a user opens the malicious file, and the payload executes with the privileges of the current user.
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Analysis
by VulDB Data Team • 08/30/2025
The vulnerability identified as CVE-2010-10017 affects WM Downloader version 3.1.2.2 and represents a classic buffer overflow flaw that demonstrates poor input validation practices in multimedia playlist processing. This vulnerability specifically targets the handling of .m3u playlist files, which are commonly used to manage audio and video content in media applications. The flaw occurs when the application processes a maliciously crafted playlist file without adequate bounds checking, creating an exploitable condition that can be leveraged by attackers to gain unauthorized code execution.
The technical implementation of this vulnerability stems from the application's failure to properly validate the length of input data when parsing .m3u files. When processing playlist content, the WM Downloader application uses fixed-size buffers that do not account for potentially oversized input data. This oversight creates a condition where an attacker can craft a malicious .m3u file containing excessive data that exceeds the allocated buffer space. The overflow specifically impacts structured exception handler records, which are critical components of windows exception handling mechanisms that manage program flow during error conditions.
From an operational perspective, this vulnerability presents a significant risk as exploitation requires only local user interaction through the simple act of opening a malicious file. The attack vector is particularly dangerous because it does not require network connectivity or complex remote exploitation techniques, making it accessible to attackers with minimal technical expertise. The payload execution occurs with the privileges of the current user, meaning that successful exploitation could result in unauthorized code execution within the user's security context, potentially leading to data theft, system compromise, or further escalation of privileges.
The vulnerability aligns with CWE-121, which describes stack-based buffer overflow conditions, and represents a variant of the broader class of buffer overflow vulnerabilities that have plagued software applications for decades. From an attack framework perspective, this vulnerability maps to the execution phase of the kill chain and could be categorized under the ATT&CK technique T1059.007 for command and scripting interpreter. The local exploitation requirement makes this vulnerability particularly concerning for environments where users may encounter untrusted content or where social engineering attacks could be employed to trick users into opening malicious playlist files. Organizations should prioritize patching this vulnerability through updated versions of WM Downloader, as the exploitability factor combined with the low attack complexity makes it a significant risk to system security.