CVE-2017-13693

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.

Category

5.5
CVSS
Severity: Medium
CVSS 3.0 •
CVSS 2.0 •
EPSS 0.06%
Third-Party Advisory securityfocus.com Third-Party Advisory github.com Third-Party Advisory kernel.org
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://patchwork.kernel.org/patch/9919053/ third party advisory patch
https://github.com/acpica/acpica/pull/295/commits/987a3b5cf7175916e2a4b6ea5b8e70f830dfe732 patch third party advisory issue tracking
http://www.securityfocus.com/bid/100502 third party advisory vdb entry
https://github.com/acpica/acpica/pull/295

Frequently Asked Questions

What is the severity of CVE-2017-13693?
CVE-2017-13693 has been scored as a medium severity vulnerability.
How to fix CVE-2017-13693?
To fix CVE-2017-13693, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2017-13693 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2017-13693 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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