CVE-2017-13693

MEDIUM

Description

The acpi_ds_create_operands() function in drivers/acpi/acpica/dsutils.c in the Linux kernel through 4.12.9 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://www.securityfocus.com/bid/100502

https://github.com/acpica/acpica/pull/295/commits/987a3b5cf7175916e2a4b6ea5b8e70f830dfe732

https://patchwork.kernel.org/patch/9919053/

Details

Source: MITRE

Published: 2017-08-25

Updated: 2017-09-20

Type: CWE-200

Risk Information

CVSS v2.0

Base Score: 4.9

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

Impact Score: 6.9

Exploitability Score: 3.9

Severity: MEDIUM

CVSS v3.0

Base Score: 5.5

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

Impact Score: 3.6

Exploitability Score: 1.8

Severity: MEDIUM