CVE-2025-47367 in Snapdragon Compute
Summary
by MITRE • 11/04/2025
Memory corruption while accessing a buffer during IOCTL processing.
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Analysis
by VulDB Data Team • 11/04/2025
This vulnerability represents a critical memory corruption issue that occurs during input/output control operations within kernel-mode drivers. The flaw manifests when the system processes IOCTL requests and attempts to access buffer memory structures, creating conditions where arbitrary memory locations can be overwritten or accessed beyond their allocated boundaries. Such memory corruption vulnerabilities are particularly dangerous because they can lead to privilege escalation, system instability, or complete system compromise when exploited by malicious actors. The vulnerability stems from inadequate bounds checking during buffer access operations, allowing attackers to manipulate memory layout through carefully crafted IOCTL parameters. This type of flaw typically falls under the CWE-121 category of stack-based buffer overflow or CWE-787 out-of-bounds write conditions, both of which are classified as high-risk vulnerabilities in cybersecurity frameworks. The operational impact of this vulnerability extends beyond simple memory corruption as it can enable attackers to execute arbitrary code with kernel-level privileges, potentially leading to full system compromise and persistent backdoor access. The vulnerability affects systems where kernel-mode drivers handle IOCTL operations, particularly those implementing custom device drivers or communication protocols that process external input through control interfaces.
The technical exploitation of this vulnerability requires understanding of kernel-mode memory management and driver architecture patterns. Attackers can craft malicious IOCTL requests that contain oversized buffer parameters or malformed data structures, causing the driver to write beyond allocated memory regions. This memory corruption can overwrite critical kernel data structures, function pointers, or return addresses, enabling code execution control flow manipulation. The vulnerability's exploitation path aligns with ATT&CK technique T1068 which describes local privilege escalation through kernel exploits, and T1059 which encompasses command and scripting interpreters used in post-exploitation activities. When successfully exploited, the vulnerability can bypass modern security mitigations such as address space layout randomization and data execution protection mechanisms, particularly if the system lacks kernel address space layout randomization or control flow integrity protections. The flaw demonstrates poor input validation and memory management practices that violate fundamental security principles for kernel-level software development, where every memory access must be strictly validated against allocated boundaries.
Mitigation strategies for this vulnerability must address both immediate defensive measures and long-term architectural improvements. System administrators should implement immediate patches or updates from vendor sources that correct the buffer access validation logic and add proper bounds checking mechanisms. Additionally, enabling kernel-mode exploit protection features such as kernel address space layout randomization, control flow guard, and driver signature enforcement can significantly reduce exploitation success rates. The implementation of runtime monitoring solutions that detect anomalous buffer access patterns or memory corruption attempts provides additional layers of defense. Organizations should also conduct thorough vulnerability assessments of their kernel-mode drivers and implement strict code review processes that enforce secure coding practices, particularly focusing on buffer management and input validation. Network segmentation and principle of least privilege configurations can limit the potential impact if exploitation occurs, while regular system updates and security monitoring help detect and respond to exploitation attempts. The vulnerability highlights the importance of following secure development lifecycle practices and adhering to industry standards such as those defined in the CERT/CC secure coding guidelines and NIST cybersecurity frameworks for protecting kernel-level software components from memory corruption attacks.