CVE-2017-11472

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.

Category

7.1
CVSS
Severity: High
CVSS 3.0 •
CVSS 2.0 •
EPSS 0.06%
Vendor Advisory ubuntu.com Vendor Advisory ubuntu.com Vendor Advisory ubuntu.com
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://usn.ubuntu.com/3619-2/ vendor advisory
https://usn.ubuntu.com/3754-1/ vendor advisory
https://github.com/torvalds/linux/commit/3b2d69114fefa474fca542e51119036dceb4aa6f patch third party advisory issue tracking
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=3b2d69114fefa474fca542e51119036dceb4aa6f patch third party advisory issue tracking
https://github.com/acpica/acpica/commit/a23325b2e583556eae88ed3f764e457786bf4df6 patch third party advisory issue tracking
https://usn.ubuntu.com/3619-1/ vendor advisory

Frequently Asked Questions

What is the severity of CVE-2017-11472?
CVE-2017-11472 has been scored as a high severity vulnerability.
How to fix CVE-2017-11472?
To fix CVE-2017-11472, 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-2017-11472 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2017-11472 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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