CVE-2022-22090 in Snapdragon Compute
Summary
by MITRE • 06/14/2022
Memory corruption in audio due to use after free while managing buffers from internal cache in Snapdragon Compute, Snapdragon Connectivity, Snapdragon Mobile
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Analysis
by VulDB Data Team • 06/15/2022
This vulnerability represents a critical memory corruption issue affecting audio processing components within Qualcomm Snapdragon automotive and mobile platforms. The flaw manifests as a use-after-free condition that occurs during buffer management operations within the internal cache system of these processors. When audio data is processed and cached in memory, the system fails to properly validate buffer references before subsequent access operations, creating opportunities for malicious actors to exploit this memory management weakness. The vulnerability impacts multiple Snapdragon product lines including compute, connectivity, and mobile processors, indicating a widespread architectural issue within Qualcomm's audio subsystem design.
The technical root cause of this vulnerability stems from improper memory lifecycle management within the audio buffer handling code. Specifically, when audio data is cached and subsequently freed from memory, the system continues to reference these freed memory locations during subsequent processing operations. This pattern violates fundamental memory safety principles and creates conditions where arbitrary code execution becomes possible. The issue is classified as a use-after-free vulnerability which aligns with CWE-416, representing an improper release of memory resources. Attackers can leverage this condition to manipulate memory contents, potentially leading to privilege escalation or system compromise.
From an operational perspective, this vulnerability presents significant security risks for automotive and mobile environments where Snapdragon processors are deployed. The attack surface includes any audio processing functionality that utilizes cached buffers, potentially affecting voice recognition systems, audio streaming applications, and multimedia processing capabilities. The impact extends beyond simple audio corruption to potentially enable full system compromise when exploited by attackers with appropriate privileges. This vulnerability is particularly concerning in automotive applications where audio systems may interface with vehicle control systems, creating potential pathways for unauthorized access to critical vehicle functions. The exploitation requires minimal privileges and can be executed through legitimate audio processing pathways, making detection and prevention challenging.
Mitigation strategies for this vulnerability should focus on immediate firmware updates from Qualcomm, which address the memory management flaws in the affected audio subsystems. Organizations should implement comprehensive patch management protocols specifically targeting Snapdragon processor families, ensuring that all affected devices receive timely security updates. Network segmentation and monitoring solutions should be deployed to detect anomalous audio processing patterns that might indicate exploitation attempts. Additionally, implementing runtime protection mechanisms such as address space layout randomization and memory integrity checks can provide additional defense layers. The vulnerability demonstrates the importance of rigorous memory safety testing in automotive and mobile processor design, particularly for components handling sensitive data processing operations. Organizations should also consider implementing intrusion detection systems specifically tuned to monitor audio processing subsystems for potential exploitation attempts, as these systems may represent attack vectors for more sophisticated threats targeting automotive and mobile platforms.