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CVE-2017-6951

20
FAUCET Score

CVE-2017-6951 is a denial-of-service vulnerability affecting the Linux kernel through version 3.14.79, specifically within the keyring_search_aux function. A local attacker can trigger a NULL pointer dereference and system crash (OOPS) by making a request_key system call for the "dead" type. This vulnerability is rated Medium severity (CVSS 5.5) due to its local attack vector and high impact on availability, requiring low privileges and no user interaction. There is no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
<= 3.14.79CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

5.5MEDIUM

CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
1.8
Impact Score
3.6
CvssVersion
3.0

Exploit Intelligence

EPSS Score
0.39%
Probability of exploitation in next 30 days
EPSS Percentile
31.1%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0039 is in the 87th percentile among its peer group of 15,940 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (4)

redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: kernel-rt-0:3.10.0-693.rt56.617.el7
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: kernel-0:3.10.0-693.el7
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise MRG 2Fixed in: kernel-rt-1:3.10.0-693.2.1.rt56.585.el6rt
View patch
redhatno patchvia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: kernel

Vendor Advisories (1)

redhatCVE-2017-6951Moderate

kernel: NULL pointer dereference in keyring_search_aux function

Mar 3, 2017

References

access.redhat.com / errata/RHSA-2017:1842
access.redhat.com / errata/RHSA-2017:2077
access.redhat.com / errata/RHSA-2017:2669
securityfocus.com / bid/96943
Third Party AdvisoryVDB Entry
spinics.net / lists/keyrings/msg01845.html
Mailing ListThird Party Advisory
spinics.net / lists/keyrings/msg01846.html
Mailing ListThird Party Advisory
spinics.net / lists/keyrings/msg01849.html
Mailing ListThird Party Advisory