Use-After-Free in Linux Kernel ACPICA

Executive Summary

This vulnerability in the Linux kernel involves a missing validation check in the function acpi_ns_build_normalized_path(). The issue allows a use-after-free vulnerability to occur, which could lead to memory corruption or arbitrary code execution by an attacker.

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Detection Guidance

This vulnerability is specific to the Linux kernel's ACPICA component and involves a use-after-free issue in acpi_ns_build_normalized_path(). Detection requires checking kernel logs for ACPI-related errors or crashes. Commands like dmesg | grep -i acpi or journalctl -k | grep -i acpi may help identify issues. Ensure your kernel is updated to a patched version.

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Impact Analysis

If exploited, this vulnerability could allow an attacker to execute arbitrary code, escalate privileges, or cause a denial of service on affected systems running vulnerable versions of the Linux kernel.

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Compliance Impact

This vulnerability involves a use-after-free issue in the Linux kernel's ACPICA component, which could lead to memory corruption or crashes. Such low-level system vulnerabilities may impact compliance with standards like GDPR or HIPAA by potentially exposing sensitive data or disrupting system integrity if exploited.

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Mitigation Strategies

Update the Linux kernel to the latest patched version to resolve the use-after-free vulnerability in ACPICA's acpi_ns_build_normalized_path function.

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