CVE-2025-27052 in Snapdragon Auto
Summary
by MITRE • 07/08/2025
Memory corruption while processing data packets in diag received from Unix clients.
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Analysis
by VulDB Data Team • 09/07/2025
This vulnerability represents a critical memory corruption flaw that occurs within the diagnostic processing subsystem when handling data packets transmitted from unix clients. The issue manifests during the reception and parsing of diagnostic information sent through unix domain sockets, where improper memory management leads to potential buffer overflows or heap corruption conditions. The vulnerability stems from insufficient input validation and inadequate bounds checking during packet processing, creating opportunities for attackers to manipulate memory structures through carefully crafted diagnostic data. This type of vulnerability falls under the category of memory safety issues that can lead to arbitrary code execution or system instability when exploited.
The technical implementation of this flaw involves the diagnostic subsystem's failure to properly validate packet boundaries and data lengths when processing unix client communications. When diagnostic packets arrive from unix clients, the system does not adequately verify the integrity of the received data before attempting to parse or store it in memory buffers. This lack of proper sanitization allows for potential overflow conditions where maliciously crafted packet contents can overwrite adjacent memory locations, potentially corrupting critical system structures or executing unintended code sequences. The vulnerability is particularly concerning because it operates at a low level within the system's communication stack, making detection and prevention more challenging.
Operationally, this vulnerability poses significant risks to system stability and security integrity, especially in environments where unix client diagnostics are frequently processed. An attacker could exploit this flaw by establishing a connection to the diagnostic service and sending maliciously constructed packets that trigger the memory corruption conditions. The impact extends beyond simple system crashes to potentially allow for privilege escalation or remote code execution depending on the system configuration and access controls in place. The vulnerability affects systems that rely on unix domain socket communications for diagnostic purposes, which are common in enterprise environments, embedded systems, and network infrastructure devices that utilize diagnostic protocols.
Mitigation strategies should focus on implementing comprehensive input validation and bounds checking mechanisms within the diagnostic packet processing code. The recommended approach includes adding strict length validation for all incoming diagnostic packets, implementing proper buffer management techniques, and applying memory safety enhancements such as stack canaries or address space layout randomization. Additionally, network segmentation and access controls should be strengthened to limit exposure of the vulnerable diagnostic service to untrusted unix clients. Organizations should also consider implementing intrusion detection systems to monitor for unusual diagnostic packet patterns that might indicate exploitation attempts. This vulnerability aligns with CWE-121 heap-based buffer overflow and potentially CWE-787 out-of-bounds write conditions, and could be mapped to ATT&CK techniques involving privilege escalation and execution through system services. Regular patching and security updates are essential to address this memory corruption vulnerability before it can be exploited in active attacks.