ACPI Table Vulnerability: Kernel Memory Information Disclosure and KASLR Bypass

ACPI Table Vulnerability: Kernel Memory Information Disclosure and KASLR Bypass

CVE-2017-13694 · LOW Severity

AV:L/AC:L/AU:N/C:P/I:N/A:N

The acpi_ps_complete_final_op() function in drivers/acpi/acpica/psobject.c in the Linux kernel through 4.12.9 does not flush the node and node_ext caches and causes a kernel stack dump, which allows local users to obtain sensitive information from kernel memory and bypass the KASLR protection mechanism (in the kernel through 4.9) via a crafted ACPI table.

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