CVE-2017-15951

Description

The KEYS subsystem in the Linux kernel before 4.13.10 does not correctly synchronize the actions of updating versus finding a key in the "negative" state to avoid a race condition, which allows local users to cause a denial of service or possibly have unspecified other impact via crafted system calls.

Category

7.8
CVSS
Severity: High
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.10%
Vendor Advisory kernel.org
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=363b02dab09b3226f3bd1420dad9c72b79a42a76 issue tracking third party advisory patch
https://github.com/torvalds/linux/commit/363b02dab09b3226f3bd1420dad9c72b79a42a76 issue tracking third party advisory patch
http://www.securityfocus.com/bid/101621 vdb entry third party advisory
http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.13.10 release notes vendor advisory

Frequently Asked Questions

What is the severity of CVE-2017-15951?
CVE-2017-15951 has been scored as a high severity vulnerability.
How to fix CVE-2017-15951?
To fix CVE-2017-15951, 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-2017-15951 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2017-15951 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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