CVE-2011-2132 in Flash Media Server
Summary
by MITRE
Adobe Flash Media Server (FMS) before 3.5.7, and 4.x before 4.0.3, allows attackers to cause a denial of service (memory corruption) via unspecified vectors.
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Analysis
by VulDB Data Team • 01/12/2025
Adobe Flash Media Server versions prior to 3.5.7 and 4.x versions prior to 4.0.3 contain a memory corruption vulnerability that can be exploited to trigger a denial of service condition. This vulnerability stems from insufficient input validation and memory management within the media streaming server implementation. The unspecified vectors suggest that multiple attack paths may exist, potentially involving malformed media streams, malicious RTMP protocol packets, or crafted HTTP requests that the server fails to properly handle. The memory corruption occurs during the processing of media content or streaming requests, leading to unpredictable behavior including application crashes, memory leaks, or system instability. This vulnerability aligns with CWE-121, which describes heap-based buffer overflow conditions, and CWE-125, which covers out-of-bounds read errors that can result in memory corruption. The operational impact of this vulnerability extends beyond simple service disruption as it can affect the entire media streaming infrastructure, potentially compromising the availability of live broadcasts, on-demand content delivery, and real-time communication services that depend on FMS. Attackers can exploit this weakness by sending specially crafted media content or streaming requests that cause the server to allocate or access memory in unintended ways, leading to system crashes and complete service unavailability. The vulnerability is particularly concerning in enterprise environments where FMS serves as a critical component for multimedia content delivery and streaming applications. Organizations using affected versions should immediately implement patch management procedures to upgrade to the patched versions 3.5.7 and 4.0.3 respectively, as these releases contain the necessary memory safety improvements and input validation mechanisms. Network segmentation and monitoring should be implemented to detect anomalous streaming traffic patterns that may indicate exploitation attempts. Additionally, the vulnerability demonstrates characteristics consistent with ATT&CK technique T1499, which involves network disruption through resource exhaustion or memory corruption attacks targeting server infrastructure. Regular security assessments of streaming server configurations and access controls should be conducted to minimize the attack surface and prevent unauthorized exploitation of such memory corruption vulnerabilities in multimedia delivery systems.