CVE-2025-49482 in Falcon_Linux
Summary
by MITRE • 07/01/2025
Improper Resource Shutdown or Release vulnerability in ASR180x 、ASR190x in tr069 modules allows Resource Leak Exposure. This vulnerability is associated with program files tr069/tr098.c. This issue affects Falcon_Linux、Kestrel、Lapwing_Linux: before v1536.
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Analysis
by VulDB Data Team • 07/03/2025
The vulnerability identified as CVE-2025-49482 represents a critical improper resource shutdown or release flaw within the ASR180x and ASR190x series network devices, specifically impacting the tr069 modules responsible for managing telecom equipment. This weakness resides in the program file tr069/tr098.c and manifests as a resource leak exposure that can compromise system stability and performance. The affected platforms include Falcon_Linux, Kestrel, and Lapwing_Linux operating systems, with versions prior to v1536 being particularly susceptible to exploitation. The tr069 protocol implementation within these devices handles communication with internet protocol network management systems, making this vulnerability especially dangerous as it can lead to persistent resource exhaustion that affects critical network operations.
The technical root cause of this vulnerability stems from inadequate resource management within the tr069 module's code implementation. When the system processes incoming tr069 requests or manages connections through the tr098.c module, it fails to properly release allocated memory, file handles, or network connections upon completion of operations. This improper resource shutdown creates a condition where resources gradually accumulate without being freed, leading to resource leak exposure that can eventually exhaust system resources. The vulnerability aligns with CWE-404, which specifically addresses improper resource shutdown or release, and demonstrates how inadequate resource management can create persistent security weaknesses. The flaw operates at the system level where network protocols interact with the underlying operating system resources, making it particularly challenging to detect and remediate without comprehensive system analysis.
The operational impact of CVE-2025-49482 extends beyond simple resource exhaustion to potentially compromise network availability and system integrity. As resource leaks accumulate over time, affected devices may experience degraded performance, increased latency, or complete service unavailability. Network administrators may observe gradual system slowdowns, unexpected reboots, or failure of tr069 management functions that could disrupt critical telecommunications services. The vulnerability presents a significant risk to network infrastructure as it affects devices that are typically deployed in mission-critical environments where continuous operation is essential. Attackers could potentially exploit this weakness to cause denial of service conditions or create persistent access points within network infrastructure, particularly given that the tr069 protocol is commonly used for remote device management and configuration. This vulnerability also aligns with ATT&CK technique T1499.004, which covers network denial of service attacks, as the resource leak can effectively consume system resources needed for legitimate operations.
Mitigation strategies for CVE-2025-49482 require immediate attention from system administrators and network operators responsible for affected ASR180x and ASR190x devices. The primary recommendation involves upgrading all impacted systems to version v1536 or later, where the resource management issues within tr069/tr098.c have been addressed through proper resource shutdown procedures. Organizations should implement comprehensive monitoring solutions to track resource utilization patterns and detect early signs of resource leak conditions. Additionally, temporary workarounds may include implementing connection limits, reducing tr069 service frequency, or temporarily disabling the tr069 module when not actively required. Security teams should conduct thorough vulnerability assessments of their network infrastructure to identify all affected devices and prioritize remediation efforts based on risk exposure. The remediation process should include not only software updates but also comprehensive testing to ensure that the updated systems maintain proper tr069 functionality while eliminating the resource leak vulnerability. Regular security audits and vulnerability scanning should be implemented to prevent similar issues from emerging in future software releases, particularly focusing on resource management code reviews and adherence to secure coding practices that prevent improper resource shutdown conditions.