Description (CNA)
The acpi_ns_terminate() function in drivers/acpi/acpica/nsutils.c in the Linux kernel before 4.12 does not flush the operand cache 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.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| n/a / n/a | affected n/a |
CWE
No CWE identifiers supplied.
References
- https://usn.ubuntu.com/3619-2/
- https://usn.ubuntu.com/3754-1/
- https://github.com/torvalds/linux/commit/3b2d69114fefa474fca542e51119036dceb4aa6f
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=3b2d69114fefa474fca542e51119036dceb4aa6f
- https://github.com/acpica/acpica/commit/a23325b2e583556eae88ed3f764e457786bf4df6
- https://usn.ubuntu.com/3619-1/
ADP enrichment
No English description supplied.
- https://usn.ubuntu.com/3619-2/
- https://usn.ubuntu.com/3754-1/
- https://github.com/torvalds/linux/commit/3b2d69114fefa474fca542e51119036dceb4aa6f
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=3b2d69114fefa474fca542e51119036dceb4aa6f
- https://github.com/acpica/acpica/commit/a23325b2e583556eae88ed3f764e457786bf4df6
- https://usn.ubuntu.com/3619-1/