CVE-2024-33022 in Snapdragon Auto
Summary
by MITRE • 08/05/2024
Memory corruption while allocating memory in HGSL driver.
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Analysis
by VulDB Data Team • 11/20/2024
The vulnerability involves a memory corruption issue within the HGSL (Hardware Graphics Subsystem Library) driver component that handles memory allocation operations. This type of flaw typically occurs when the driver fails to properly validate input parameters or manage memory boundaries during allocation processes, creating opportunities for attackers to manipulate memory structures and potentially execute arbitrary code. The HGSL driver serves as a critical interface between graphics processing units and system memory, making it a prime target for exploitation in graphics-related attack vectors.
Memory corruption vulnerabilities in graphics drivers often stem from insufficient bounds checking, improper handling of buffer sizes, or flawed memory management algorithms that fail to account for malicious input data. When the driver allocates memory without proper validation, it creates conditions where attacker-controlled data can overwrite adjacent memory locations, leading to unpredictable behavior including privilege escalation, denial of service, or code execution. This particular flaw demonstrates a weakness in the driver's memory allocation routine that could be exploited through specially crafted graphics commands or applications that interact with the hardware subsystem.
The operational impact of such a vulnerability extends across multiple security domains particularly affecting systems running graphics-intensive applications or gaming platforms where the HGSL driver is actively utilized. Attackers could leverage this memory corruption to gain elevated privileges within the system, potentially compromising user data or establishing persistent access points. The exploitation typically requires local system access or specific conditions that allow manipulation of graphics processing operations, making it a medium to high severity threat depending on the execution environment and privilege levels involved.
Mitigation strategies for this type of vulnerability involve implementing comprehensive memory safety mechanisms including bounds checking, stack canaries, and address space layout randomization to prevent exploitation. System administrators should ensure timely driver updates from vendors and implement monitoring solutions that detect anomalous memory allocation patterns or graphics processing behaviors. The vulnerability aligns with CWE-121 heap-based buffer overflow and may map to ATT&CK techniques involving privilege escalation through driver exploitation. Organizations should conduct regular security assessments of graphics drivers and maintain updated threat intelligence on related vulnerabilities affecting hardware subsystems. Proper input validation and memory management practices within the driver codebase can prevent such issues from occurring in future implementations, requiring adherence to secure coding standards and thorough testing procedures before deployment.