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CVE-2018-1068

19
FAUCET Score

CVE-2018-1068 is a kernel memory write vulnerability in the Linux 4.x kernel's 32-bit syscall interface for bridging, affecting Canonical, Debian, Linux, and Red Hat distributions. A privileged local attacker could exploit this flaw to arbitrarily write to a limited range of kernel memory, leading to high impact on confidentiality, integrity, and availability. Despite its CVSS score of 6.7 (Medium), indicating a local attack with high privileges, there is no known active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
< 3.2.102CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 3.3, < 3.16.57CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 3.17, < 3.18.100CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 3.19, < 4.1.51CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 4.2, < 4.4.122CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

6.7MEDIUM

CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
HIGH
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
0.8
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.45%
Probability of exploitation in next 30 days
EPSS Percentile
36.8%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0045 is in the 87th percentile among its peer group of 3,720 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 (9)

github_advisorypatch availablevia nvd_reference
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: kernel-rt-0:3.10.0-862.2.3.rt56.806.el7
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: kernel-0:3.10.0-862.2.3.el7
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: kernel-alt-0:4.14.0-115.el7a
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 7.3 Advanced Update SupportFixed in: kernel-0:3.10.0-514.71.1.el7
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 7.3 Telco Extended Update SupportFixed in: kernel-0:3.10.0-514.71.1.el7
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 7.3 Update Services for SAP SolutionsFixed in: kernel-0:3.10.0-514.71.1.el7
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 7.4 Extended Update SupportFixed in: kernel-0:3.10.0-693.47.2.el7
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise MRG 2Fixed in: kernel-rt-1:3.10.0-693.47.2.rt56.641.el6rt
View patch

Vendor Advisories (1)

redhatCVE-2018-1068Important

kernel: Out-of-bounds write via userland offsets in ebt_entry struct in netfilter/ebtables.c

Mar 5, 2018

References

access.redhat.com / errata/RHSA-2018:1318
Third Party Advisory
access.redhat.com / errata/RHSA-2018:1355
Third Party Advisory
access.redhat.com / errata/RHSA-2018:2948
Third Party Advisory
access.redhat.com / errata/RHSA-2019:1170
Third Party Advisory
access.redhat.com / errata/RHSA-2019:1190
Third Party Advisory
access.redhat.com / errata/RHSA-2019:4159
Third Party Advisory
bugzilla.redhat.com / show_bug.cgi
Issue TrackingThird Party Advisory
github.com / torvalds/linux/commit/b71812168571fa55e44cdd0254471331b9c4c4c6
PatchThird Party Advisory
git.kernel.org / pub/scm/linux/kernel/git/torvalds/linux.git/commit
PatchVendor Advisory
lists.debian.org / debian-lts-announce/2018/05/msg00000.html
Mailing ListThird Party Advisory
marc.info
Third Party Advisory
marc.info
PatchThird Party Advisory
usn.ubuntu.com / 3654-1
Third Party Advisory
usn.ubuntu.com / 3654-2
Third Party Advisory
usn.ubuntu.com / 3656-1
Third Party Advisory
usn.ubuntu.com / 3674-1
Third Party Advisory
usn.ubuntu.com / 3674-2
Third Party Advisory
usn.ubuntu.com / 3677-1
Third Party Advisory
usn.ubuntu.com / 3677-2
Third Party Advisory
debian.org / security/2018/dsa-4187
Third Party Advisory
debian.org / security/2018/dsa-4188
Third Party Advisory
securityfocus.com / bid/103459
Third Party AdvisoryVDB Entry