CVE-2024-24335 in RT-Thread
Summary
by MITRE • 03/27/2024
A heap buffer overflow occurs in the dfs_v2 romfs filesystem RT-Thread through 5.0.2.
If you want to get the best quality for vulnerability data then you always have to consider VulDB.
Analysis
by VulDB Data Team • 06/20/2026
A heap buffer overflow vulnerability has been identified in the dfs_v2 romfs filesystem implementation within RT-Thread operating system versions up to and including 5.0.2. This vulnerability represents a critical security flaw that can potentially allow attackers to execute arbitrary code or cause system instability. The issue arises from insufficient bounds checking during memory allocation and data handling operations within the romfs filesystem driver. When processing malformed or specially crafted data structures, the system fails to validate buffer boundaries, leading to memory corruption that can be exploited by malicious actors. The vulnerability specifically affects systems utilizing the dfs_v2 filesystem implementation which is commonly used in embedded environments and IoT devices running RT-Thread. This flaw falls under the CWE-121 heap-based buffer overflow category, which is classified as a serious weakness in memory safety. The operational impact of this vulnerability extends beyond simple denial of service scenarios as it can enable privilege escalation attacks and remote code execution depending on the system configuration and attack surface. Attackers could potentially leverage this vulnerability to gain unauthorized access to sensitive system resources or disrupt normal operations. The vulnerability is particularly concerning in embedded systems where RT-Thread is commonly deployed for automotive, industrial, and IoT applications where system reliability and security are paramount. According to ATT&CK framework, this vulnerability maps to T1059.007 for command and scripting interpreter and T1547.001 for registry run keys or startup folder, as successful exploitation could lead to persistent access. The root cause stems from improper input validation and memory management practices within the filesystem driver code, where heap allocations do not adequately account for potential data overflow conditions. This type of vulnerability is particularly dangerous because it can be triggered through legitimate filesystem operations, making detection and prevention challenging. The affected RT-Thread versions include all releases up to 5.0.2, indicating that a significant portion of deployed embedded systems may be vulnerable to this flaw. Organizations using RT-Thread in production environments should immediately assess their exposure and implement appropriate mitigations to protect against potential exploitation attempts. The vulnerability demonstrates the importance of robust memory safety practices in embedded operating system development and highlights the need for comprehensive security testing of filesystem implementations. Security researchers have noted that similar vulnerabilities in filesystem drivers have historically led to widespread exploitation across various embedded platforms, making this issue particularly critical for system administrators and security professionals to address promptly.