CVE-2017-2647

Description

The KEYS subsystem in the Linux kernel before 3.18 allows local users to gain privileges or cause a denial of service (NULL pointer dereference and system crash) via vectors involving a NULL value for a certain match field, related to the keyring_search_iterator function in keyring.c.

Category

7.8
CVSS
Severity: High
CVSS 3.0 •
CVSS 2.0 •
EPSS 0.04%
Vendor Advisory redhat.com Vendor Advisory redhat.com Vendor Advisory ubuntu.com Vendor Advisory ubuntu.com Vendor Advisory redhat.com Vendor Advisory redhat.com
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://access.redhat.com/errata/RHSA-2017:2437 vendor advisory
https://access.redhat.com/errata/RHSA-2017:2444 vendor advisory
http://www.securityfocus.com/bid/97258 vdb entry third party advisory
https://github.com/torvalds/linux/commit/c06cfb08b88dfbe13be44a69ae2fdc3a7c902d81 issue tracking third party advisory patch
https://usn.ubuntu.com/3849-1/ vendor advisory
https://usn.ubuntu.com/3849-2/ vendor advisory
https://access.redhat.com/errata/RHSA-2017:2077 vendor advisory
https://access.redhat.com/errata/RHSA-2017:1842 vendor advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1428353 issue tracking patch
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=c06cfb08b88dfbe13be44a69ae2fdc3a7c902d81 issue tracking third party advisory patch

Frequently Asked Questions

What is the severity of CVE-2017-2647?
CVE-2017-2647 has been scored as a high severity vulnerability.
How to fix CVE-2017-2647?
To fix CVE-2017-2647, 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-2017-2647 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2017-2647 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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