CVE-2023-43542 in Snapdragon Auto
Summary
by MITRE • 06/03/2024
Memory corruption while copying a keyblob`s material when the key material`s size is not accurately checked.
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Analysis
by VulDB Data Team • 06/04/2024
This vulnerability represents a critical memory corruption flaw that occurs during the processing of cryptographic key material within security systems. The issue manifests when a system attempts to copy keyblob material without proper validation of the key material's size, creating a potential avenue for arbitrary code execution or system instability. The vulnerability stems from inadequate input validation mechanisms that fail to properly verify the boundaries of cryptographic key data during memory operations.
The technical implementation of this flaw involves improper bounds checking during keyblob material copying operations, which can lead to buffer overflows or underflows in memory allocation. When the system processes key material that exceeds or falls short of expected size parameters, the memory management routines fail to handle these edge cases appropriately, resulting in corruption of adjacent memory regions. This type of vulnerability directly aligns with CWE-122, which describes insufficient bounds checking for memory operations, and represents a classic example of memory safety issues that have plagued cryptographic implementations for decades.
From an operational perspective, this vulnerability presents significant risks to cryptographic systems that rely on proper key management protocols. Attackers could potentially exploit this flaw by crafting malicious key material that triggers the memory corruption during copying operations, leading to privilege escalation, denial of service conditions, or even complete system compromise. The impact extends beyond simple memory corruption as it can undermine the fundamental security guarantees that cryptographic systems are designed to provide. Systems utilizing affected cryptographic libraries or security protocols may experience unexpected behavior, data corruption, or unauthorized access when processing key material that does not conform to expected size parameters.
The exploitation of this vulnerability follows patterns consistent with ATT&CK technique T1059.007, which involves the execution of malicious code through manipulation of system resources, and T1499.004, which targets the integrity of systems through memory corruption attacks. Organizations should prioritize immediate patching of affected systems and implement monitoring for anomalous key material processing patterns. Mitigation strategies should include enhanced input validation, memory safety improvements, and comprehensive testing of key management workflows to ensure proper bounds checking is enforced throughout all cryptographic operations. Additionally, implementing runtime protections such as address space layout randomization and stack canaries can help reduce the exploitability of such memory corruption vulnerabilities.