CVE-2017-13694

Description

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.

Category

5.5
CVSS
Severity: Medium
CVSS 3.0 •
CVSS 2.0 •
EPSS 0.07%
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/9806085/ third party advisory patch
http://www.securityfocus.com/bid/100500 vdb entry third party advisory
https://github.com/acpica/acpica/pull/278/commits/4a0243ecb4c94e2d73510d096c5ea4d0711fc6c0 issue tracking third party advisory patch
https://github.com/acpica/acpica/pull/278

Frequently Asked Questions

What is the severity of CVE-2017-13694?
CVE-2017-13694 has been scored as a medium severity vulnerability.
How to fix CVE-2017-13694?
To fix CVE-2017-13694, 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-2017-13694 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2017-13694 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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