CVE-2017-16951 in WinAmp Pro
Summary
by MITRE
Winamp Pro 5.66 Build 3512 allows remote attackers to cause a denial of service via a crafted WAV, WMV, AU, ASF, AIFF, or AIF file.
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Analysis
by VulDB Data Team • 12/11/2019
The vulnerability identified as CVE-2017-16951 represents a critical denial of service flaw affecting Winamp Pro 5.66 Build 3512 and potentially other versions within the Winamp media player ecosystem. This issue manifests when the application processes specifically crafted multimedia files including WAV, WMV, AU, ASF, AIFF, and AIF formats, leading to unintended system behavior that disrupts normal operation. The vulnerability operates at the file parsing layer where the media player fails to properly validate or handle malformed input data structures, creating a condition where legitimate processing operations become disrupted or terminated.
The technical root cause of this vulnerability stems from insufficient input validation mechanisms within the Winamp media player's file format parsers. When processing maliciously crafted audio or video files, the application encounters unexpected data patterns that trigger buffer overflows, memory corruption, or exception handling failures. This type of vulnerability aligns with CWE-129, which addresses improper validation of length of input buffers, and CWE-125, which covers out-of-bounds read conditions. The flaw demonstrates characteristics of a classic buffer overflow scenario where the application attempts to read or write beyond allocated memory boundaries, causing the application to crash or become unresponsive. The vulnerability can be classified under the ATT&CK framework as a denial of service technique using malformed input data, specifically categorized under T1499.1 for network denial of service and T1499.3 for service denial of service.
The operational impact of this vulnerability extends beyond simple application instability, as it provides remote attackers with a means to disrupt media playback services and potentially affect broader system availability. When exploited, the vulnerability can cause Winamp Pro to crash repeatedly, forcing users to restart the application or reboot their systems. In networked environments where Winamp is used for media streaming or broadcasting, this vulnerability could be leveraged to disrupt service availability for legitimate users. The remote nature of the attack means that adversaries need not have physical access to target systems, making the vulnerability particularly dangerous in enterprise environments where media players might be used for automated content delivery or in public-facing applications.
Mitigation strategies for CVE-2017-16951 should prioritize immediate software updates from the vendor, as the most effective resolution involves applying patches that address the underlying input validation flaws. Organizations should implement network segmentation to limit exposure of vulnerable Winamp installations and consider deploying network monitoring tools to detect abnormal application behavior that might indicate exploitation attempts. Additionally, users should be educated about the risks of opening multimedia files from untrusted sources, and organizations should establish secure file handling procedures that include content validation before processing. Security teams should also consider implementing application whitelisting policies to restrict execution of vulnerable software versions and maintain regular vulnerability assessments to identify similar issues in other media processing applications. The vulnerability highlights the importance of robust input validation practices and proper memory management in multimedia processing applications, as these components form critical defense layers against similar exploitation techniques.