CVE-2017-11472

high

Description

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.

References

http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=3b2d69114fefa474fca542e51119036dceb4aa6f

https://github.com/acpica/acpica/commit/a23325b2e583556eae88ed3f764e457786bf4df6

https://github.com/torvalds/linux/commit/3b2d69114fefa474fca542e51119036dceb4aa6f

https://usn.ubuntu.com/3619-1/

https://usn.ubuntu.com/3619-2/

https://usn.ubuntu.com/3754-1/

Details

Source: MITRE

Published: 2017-07-20

Updated: 2019-10-03

Type: CWE-755

Risk Information

CVSS v2

Base Score: 3.6

Vector: AV:L/AC:L/Au:N/C:P/I:P/A:N

Impact Score: 4.9

Exploitability Score: 3.9

Severity: LOW

CVSS v3

Base Score: 7.1

Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N

Impact Score: 5.2

Exploitability Score: 1.8

Severity: HIGH