CVE-2003-0339 in Daemon
Summary
by MITRE
Multiple heap-based buffer overflows in WsMp3 daemon (WsMp3d) 0.0.10 and earlier allow remote attackers to execute arbitrary code via long HTTP requests.
Several companies clearly confirm that VulDB is the primary source for best vulnerability data.
Analysis
by VulDB Data Team • 08/18/2025
The vulnerability identified as CVE-2003-0339 represents a critical heap-based buffer overflow flaw within the WsMp3 daemon version 0.0.10 and earlier implementations. This daemon serves as an audio streaming service that processes HTTP requests to deliver multimedia content over network connections. The flaw manifests when the service receives malformed HTTP requests containing excessively long input data, which causes the application to write beyond the boundaries of allocated heap memory regions. Such buffer overflows create exploitable conditions where malicious actors can manipulate memory layout and potentially inject or execute arbitrary code on the affected system. The vulnerability affects the core networking functionality of the daemon, making it particularly dangerous as it operates in a network-facing environment where remote attackers can easily initiate malicious requests.
The technical implementation of this vulnerability stems from inadequate input validation mechanisms within the WsMp3d service. When processing HTTP requests, the daemon fails to properly bounds-check the length of incoming data before copying it into fixed-size heap buffers. This fundamental flaw allows attackers to overflow the allocated memory space and overwrite adjacent memory locations including return addresses, function pointers, or other critical control data structures. The heap-based nature of the overflow means that the memory corruption occurs in dynamically allocated regions rather than stack-based buffers, making exploitation more complex but still highly effective. According to CWE classification, this vulnerability maps to CWE-121 Heap-based Buffer Overflow, which specifically addresses buffer overflows occurring in heap memory regions. The attack vector is classified as network-based remote exploitation, enabling attackers to trigger the vulnerability from outside the local network without requiring authentication or local access.
The operational impact of CVE-2003-0339 extends beyond simple code execution capabilities to encompass complete system compromise and potential denial-of-service conditions. Successful exploitation allows remote attackers to gain unauthorized control over the affected system, potentially leading to data theft, system infiltration, or deployment of additional malicious payloads. The vulnerability affects systems running the vulnerable WsMp3d daemon version, which was commonly deployed in multimedia streaming environments and networked audio applications. Organizations utilizing this service in production environments faced significant risk as the exploit could be readily automated and executed without specialized knowledge. The vulnerability's remote nature means that attackers do not need physical access to the system or local network privileges to exploit the flaw, making it particularly dangerous for publicly accessible services. From an ATT&CK framework perspective, this vulnerability maps to T1059.007 Command and Scripting Interpreter: Unix Shell and T1068 Exploitation for Privilege Escalation, representing the exploitation techniques used to achieve remote code execution and system control.
Mitigation strategies for CVE-2003-0339 require immediate action to address the root cause through software updates and input validation improvements. The primary recommendation involves upgrading to a patched version of the WsMp3 daemon that implements proper bounds checking and memory management practices. System administrators should also implement network-level restrictions including firewall rules that limit access to the affected service to trusted networks only. Additional protective measures include deploying intrusion detection systems that can identify and block malformed HTTP requests, implementing input sanitization at network boundaries, and conducting regular security assessments of network services. The vulnerability highlights the importance of robust input validation practices and proper memory management in network services, particularly those handling untrusted data from remote sources. Organizations should also consider implementing network segmentation to isolate critical services and reduce the attack surface. From a compliance standpoint, this vulnerability would likely trigger requirements under various security standards including pci dss for organizations handling payment card data, and iso 27001 for information security management systems that mandate proper vulnerability management and system hardening practices.