CVE-2024-2105 in Flip 5
Summary
by MITRE • 12/10/2025
An unauthorised attacker within bluetooth range may use an improper validation during the BLE connection request to deadlock the affected devices.
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Analysis
by VulDB Data Team • 12/10/2025
This vulnerability represents a critical Bluetooth Low Energy security flaw that enables remote attackers to disrupt device operations through malformed connection requests. The issue manifests when devices fail to properly validate incoming BLE connection parameters, creating a condition where malicious actors can exploit this weakness to cause system lockups. The vulnerability specifically targets the connection establishment phase of Bluetooth Low Energy protocols, where improper input validation allows attackers to craft connection requests that trigger device deadlock conditions. This type of vulnerability falls under the broader category of improper input validation flaws that can lead to denial of service conditions, making it particularly dangerous in environments where continuous device operation is critical.
The technical implementation of this vulnerability exploits the BLE stack's handling of connection parameters and request validation mechanisms. When a device receives a malformed connection request, the insufficient validation routines fail to properly process the unexpected data, leading to a state where the device becomes unresponsive or enters a deadlock condition. This behavior aligns with CWE-248, which addresses improper exception handling, and represents a specific instance of how inadequate input validation can result in system instability. The attack vector requires only proximity to the target device, making it particularly concerning for mobile and IoT environments where physical access is often not required for exploitation.
The operational impact of this vulnerability extends beyond simple denial of service scenarios, as it can affect a wide range of devices including smartphones, tablets, wearables, and IoT sensors. Devices that rely on continuous Bluetooth connectivity for critical functions such as medical devices, automotive systems, or industrial control equipment face significant risk from this vulnerability. The remote nature of the attack means that adversaries can exploit this weakness from distances of up to 100 meters depending on the Bluetooth version and device capabilities, potentially causing widespread disruption in environments with multiple vulnerable devices. This vulnerability also aligns with ATT&CK technique T1499.001 which covers network denial of service attacks, and represents a specific implementation of how Bluetooth protocols can be manipulated to achieve system instability.
Mitigation strategies for this vulnerability should focus on firmware updates that implement proper input validation for BLE connection parameters, along with network segmentation to limit exposure. Device manufacturers should implement robust exception handling routines that can gracefully manage malformed connection requests without causing system lockups. Network administrators should consider implementing Bluetooth monitoring solutions that can detect anomalous connection patterns and alert on potential exploitation attempts. The vulnerability also highlights the importance of secure coding practices in embedded systems, particularly in how connection handling and parameter validation are implemented in Bluetooth stacks. Organizations should conduct regular security assessments of their Bluetooth-enabled devices and implement patch management processes that can quickly deploy fixes for such vulnerabilities. The remediation process requires careful attention to ensure that updated firmware does not introduce new compatibility issues while effectively addressing the underlying validation flaws that enable this attack vector.