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CVE-2023-7192

16
FAUCET Score

CVE-2023-7192 is a memory leak vulnerability in the Linux Kernel's ctnetlink_create_conntrack function, affecting various Linux distributions including Red Hat Enterprise Linux. A local attacker with CAP_NET_ADMIN privileges can exploit this flaw to trigger a refcount overflow, leading to a denial of service (DoS) condition. The vulnerability has a CVSS score of 4.4 (Medium), indicating low attack complexity but requiring high privileges. There is currently no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
< 6.3CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
8.0CPE matchmatch criteria
cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:*
9.0CPE matchmatch criteria
cpe:2.3:o:redhat:enterprise_linux:9.0:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

5.5MEDIUM

CVSS:3.1/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
3.1

Exploit Intelligence

EPSS Score
0.30%
Probability of exploitation in next 30 days
EPSS Percentile
22.0%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0030 is in the 68th 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 (26)

microsoftpatch availablevia msrc
Product: cbl2 kernel 5.15.148.1-1 on CBL Mariner 2.0Fixed in: 5.15.148.1-1
microsoftpatch availablevia msrc
Product: cbl2 kernel 5.15.180.1-1 on CBL Mariner 2.0Fixed in: 5.15.148.1-1
microsoftpatch availablevia msrc
Product: 17095-17086Fixed in: 5.15.148.1-1
microsoftpatch availablevia msrc
Product: 17452-16823Fixed in: 5.15.148.1-1
microsoftpatch availablevia msrc
Product: 19673-17086Fixed in: 5.15.148.1-1
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update SupportFixed in: kernel-0:4.18.0-305.125.1.el8_4
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 8.4 Telecommunications Update ServiceFixed in: kernel-rt-0:4.18.0-305.125.1.rt7.201.el8_4
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 8.4 Telecommunications Update ServiceFixed in: kernel-0:4.18.0-305.125.1.el8_4
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 8.4 Update Services for SAP SolutionsFixed in: kernel-0:4.18.0-305.125.1.el8_4
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 8.6 Extended Update SupportFixed in: kernel-0:4.18.0-372.95.1.el8_6
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 8.8 Extended Update SupportFixed in: kernel-0:4.18.0-477.51.1.el8_8
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 9.0 Extended Update SupportFixed in: kernel-0:5.14.0-70.93.2.el9_0
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 9.0 Extended Update SupportFixed in: kernel-rt-0:5.14.0-70.93.1.rt21.165.el9_0
View patch
redhatpatch availablevia nvd_reference
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 9.2 Extended Update SupportFixed in: kernel-rt-0:5.14.0-284.52.1.rt14.337.el9_2
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Virtualization 4 for Red Hat Enterprise Linux 8Fixed in: kernel-0:4.18.0-372.95.1.el8_6
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 9.2 Extended Update SupportFixed in: kernel-0:5.14.0-284.52.1.el9_2
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 8.2 Advanced Update SupportFixed in: kernel-0:4.18.0-193.133.1.el8_2
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 8.2 Telecommunications Update ServiceFixed in: kernel-rt-0:4.18.0-193.133.1.rt13.184.el8_2
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 8.2 Telecommunications Update ServiceFixed in: kernel-0:4.18.0-193.133.1.el8_2
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 8.2 Update Services for SAP SolutionsFixed in: kernel-0:4.18.0-193.133.1.el8_2
View patch
oraclevendor investigatingvia oracle_oval
Product: cpe:/a:oracle:linux:6:10:UEKR4_ELS
redhatno patchvia redhat_api
Product: Red Hat Enterprise Linux 9Fixed in: kernel-rt
redhatno patchvia redhat_api
Product: Red Hat Enterprise Linux 9Fixed in: kernel
redhatno patchvia redhat_api
Product: Red Hat Enterprise Linux 8Fixed in: kernel-rt
redhatno patchvia redhat_api
Product: Red Hat Enterprise Linux 8Fixed in: kernel

Vendor Advisories (3)

microsoft2024-Jan/CVE-2023-7192

Kernel: refcount leak in ctnetlink_create_conntrack()

Jan 9, 2024
redhatCVE-2023-7192Moderate

kernel: refcount leak in ctnetlink_create_conntrack()

Feb 10, 2023
oracleoval:com.oracle.ovmsa:def:20240003IMPORTANT

OVMSA-2024-0003: Unbreakable Enterprise kernel security update (IMPORTANT)

References

access.redhat.com / errata/RHSA-2024:0723
access.redhat.com / errata/RHSA-2024:0725
access.redhat.com / errata/RHSA-2024:1188
access.redhat.com / errata/RHSA-2024:1250
access.redhat.com / errata/RHSA-2024:1306
access.redhat.com / errata/RHSA-2024:1367
access.redhat.com / errata/RHSA-2024:1382
access.redhat.com / errata/RHSA-2024:1404
access.redhat.com / errata/RHSA-2024:2006
access.redhat.com / errata/RHSA-2024:2008
access.redhat.com / security/cve/CVE-2023-7192
Third Party Advisory
bugzilla.redhat.com / show_bug.cgi
Issue TrackingPatch
git.kernel.org / pub/scm/linux/kernel/git/netdev/net.git/commit
Mailing ListPatch