Predictive Vulnerability Intelligence.

Product

  • Product
  • Pricing
  • Documentation

Company

  • About
  • Partnerships
  • Blog
  • Support

Legal

  • Terms
  • Privacy
  • Data Licensing

© 2026 FAUCET Technologies LLC. All rights reserved.

CVE-2015-8970

16
FAUCET Score

CVE-2015-8970 is a NULL pointer dereference vulnerability in the Linux kernel (before version 4.4.2) affecting the crypto/algif_skcipher.c component. A local attacker can trigger a denial of service (system crash) by using a crafted application that initiates an AF_ALG socket without supplying a key before an accept system call. This vulnerability has a CVSS v3 score of 5.5 (Medium), indicating low attack complexity and privileges required, with a high impact on availability. There is no evidence of active exploitation, publicly available exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
<= 4.4.1CPE 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
0.50%
Probability of exploitation in next 30 days
EPSS Percentile
40.2%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0050 is in the 92nd percentile among its peer group of 15,940 CVEs.

Social Chatter

No social media mentions found for this CVE.

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 (5)

github_advisorypatch availablevia nvd_reference
View patch
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 Linux 7.3 Extended Update SupportFixed in: kernel-0:3.10.0-514.28.1.el7
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise MRG 2Fixed in: kernel-rt-1:3.10.0-514.rt56.231.el6rt
View patch

Vendor Advisories (1)

redhatCVE-2015-8970Moderate

kernel: crypto: GPF in lrw_crypt caused by null-deref

Dec 17, 2015

References

git.kernel.org / cgit/linux/kernel/git/torvalds/linux.git/commit
Issue TrackingPatchVendor Advisory
access.redhat.com / errata/RHSA-2017:1842
access.redhat.com / errata/RHSA-2017:2077
access.redhat.com / errata/RHSA-2017:2437
access.redhat.com / errata/RHSA-2017:2444
bugzilla.redhat.com / show_bug.cgi
Issue Tracking
github.com / torvalds/linux/commit/dd504589577d8e8e70f51f997ad487a4cb6c026f
Issue TrackingPatchThird Party Advisory
groups.google.com / forum
kernel.org / pub/linux/kernel/v4.x/ChangeLog-4.4.2
Release Notes
openwall.com / lists/oss-security/2016/11/04/3
Mailing ListThird Party Advisory
securityfocus.com / bid/94217
Third Party AdvisoryVDB Entry