Is CVE-2023-0468 in the CISA KEV catalog?

No. CVE-2023-0468 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2023-0468?

CVE-2023-0468 has a CVSS v3 base score of 4.7 (MEDIUM).

What is the EPSS score for CVE-2023-0468?

CVE-2023-0468 has an EPSS score of 0.28% (20th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2023-0468?

Upgrade linux on debian 12 to 6.0.12-1 or later. Fixes are available for 114 affected products.

CVE & CISA-KEV Catalog

CVE-2023-0468

MEDIUM

4.7

CVSS v3

NVD

Description

A use-after-free flaw was found in io_uring/poll.c in io_poll_check_events in the io_uring subcomponent in the Linux Kernel due to a race condition of poll_refs. This flaw may cause a NULL pointer dereference.

CWE-416Use After Free

How to fix

Remediation Available

linuxDebian

Fixed in:6.0.12-1CVE-2023-0468

awsUbuntu

Fixed in:4.15.0-1054LSN-0094-1

Fixed in:5.4.0-1009LSN-0094-1

Fixed in:5.15.0-1000LSN-0094-1

aws-5.15Ubuntu

Fixed in:5.15.0-1000LSN-0094-1

aws-5.4Ubuntu

Fixed in:5.4.0-1069LSN-0094-1

aws-hweUbuntu

Fixed in:4.15.0-1126LSN-0094-1

azureUbuntu

Fixed in:4.15.0-1063LSN-0094-1

Fixed in:5.4.0-1010LSN-0094-1

Fixed in:5.15.0-1000LSN-0094-1

azure-4.15Ubuntu

Fixed in:4.15.0-1115LSN-0094-1

azure-5.4Ubuntu

Fixed in:5.4.0-1069LSN-0094-1

gcpUbuntu

Fixed in:4.15.0-1118LSN-0094-1

Fixed in:5.4.0-1009LSN-0094-1

Fixed in:5.15.0-1000LSN-0094-1

gcp-4.15Ubuntu

Fixed in:4.15.0-1121LSN-0094-1

gcp-5.15Ubuntu

Fixed in:5.15.0-1000LSN-0094-1

gcp-5.4Ubuntu

Fixed in:5.4.0-1069LSN-0094-1

generic-4.15Ubuntu

Fixed in:4.15.0-143LSN-0094-1

Fixed in:4.15.0-69LSN-0094-1

generic-5.4Ubuntu

Fixed in:5.4.0-26LSN-0094-1

gkeUbuntu

Fixed in:5.4.0-1033LSN-0094-1

Fixed in:5.15.0-1000LSN-0094-1

gke-4.15Ubuntu

Fixed in:4.15.0-1076LSN-0094-1

gke-5.15Ubuntu

Fixed in:5.15.0-1000LSN-0094-1

gke-5.4Ubuntu

Fixed in:5.4.0-1009LSN-0094-1

gkeopUbuntu

Fixed in:5.4.0-1009LSN-0094-1

gkeop-5.4Ubuntu

Fixed in:5.4.0-1007LSN-0094-1

ibmUbuntu

Fixed in:5.4.0-1009LSN-0094-1

Fixed in:5.15.0-1000LSN-0094-1

ibm-5.4Ubuntu

Fixed in:5.4.0-1009LSN-0094-1

linuxUbuntu

Fixed in:5.15.0-67.74USN-5912-1

Fixed in:5.15.0-24LSN-0094-1

Fixed in:5.19.0-40.41USN-6024-1

linux-awsUbuntu

Fixed in:5.15.0-1031.35USN-5912-1

Fixed in:5.19.0-1023.24USN-6024-1

linux-aws-5.15Ubuntu

Fixed in:5.15.0-1031.35~20.04.1USN-5912-1

linux-azureUbuntu

Fixed in:5.15.0-1034.41USN-5912-1

Fixed in:5.19.0-1023.24USN-6024-1

linux-azure-5.15Ubuntu

Fixed in:5.15.0-1034.41~20.04.1USN-5912-1

linux-azure-fdeUbuntu

Fixed in:5.15.0-1034.41.1USN-5912-1

linux-gcpUbuntu

Fixed in:5.15.0-1030.37USN-5912-1

Fixed in:5.19.0-1020.22USN-6024-1

linux-gcp-5.15Ubuntu

Fixed in:5.15.0-1030.37~20.04.1USN-5912-1

linux-gkeUbuntu

Fixed in:5.15.0-1028.33USN-5912-1

linux-gke-5.15Ubuntu

Fixed in:5.15.0-1028.33~20.04.1USN-5912-1

linux-gkeopUbuntu

Fixed in:5.15.0-1016.21USN-5938-1

linux-hwe-5.15Ubuntu

Fixed in:5.15.0-67.74~20.04.1USN-5912-1

linux-hwe-5.19Ubuntu

Fixed in:5.19.0-40.41~22.04.1USN-6024-1

linux-ibmUbuntu

Fixed in:5.15.0-1026.29USN-5935-1

linux-image-5.15.0-1016-gkeopUbuntu

Fixed in:5.15.0-1016.21USN-5938-1

linux-image-5.15.0-1025-raspiUbuntu

Fixed in:5.15.0-1025.27USN-5935-1

linux-image-5.15.0-1025-raspi-nolpaeUbuntu

Fixed in:5.15.0-1025.27USN-5935-1

linux-image-5.15.0-1026-ibmUbuntu

Fixed in:5.15.0-1026.29USN-5935-1

linux-image-5.15.0-1026-intel-iotgUbuntu

Fixed in:5.15.0-1026.31USN-5962-1

linux-image-5.15.0-1028-gkeUbuntu

Fixed in:5.15.0-1028.33~20.04.1USN-5912-1

Fixed in:5.15.0-1028.33USN-5912-1

linux-image-5.15.0-1029-kvmUbuntu

Fixed in:5.15.0-1029.34USN-5941-1

linux-image-5.15.0-1030-gcpUbuntu

Fixed in:5.15.0-1030.37~20.04.1USN-5912-1

Fixed in:5.15.0-1030.37USN-5912-1

linux-image-5.15.0-1030-oracleUbuntu

Fixed in:5.15.0-1030.36~20.04.1USN-5912-1

Fixed in:5.15.0-1030.36USN-5912-1

linux-image-5.15.0-1031-awsUbuntu

Fixed in:5.15.0-1031.35~20.04.1USN-5912-1

Fixed in:5.15.0-1031.35USN-5912-1

linux-image-5.15.0-1034-azureUbuntu

Fixed in:5.15.0-1034.41~20.04.1USN-5912-1

Fixed in:5.15.0-1034.41USN-5912-1

linux-image-5.15.0-1034-azure-fdeUbuntu

Fixed in:5.15.0-1034.41.1USN-5912-1

linux-image-5.15.0-67-genericUbuntu

Fixed in:5.15.0-67.74~20.04.1USN-5912-1

Fixed in:5.15.0-67.74USN-5912-1

linux-image-5.15.0-67-generic-64kUbuntu

Fixed in:5.15.0-67.74~20.04.1USN-5912-1

Fixed in:5.15.0-67.74USN-5912-1

linux-image-5.15.0-67-generic-lpaeUbuntu

Fixed in:5.15.0-67.74~20.04.1USN-5912-1

Fixed in:5.15.0-67.74USN-5912-1

linux-image-5.15.0-67-lowlatencyUbuntu

Fixed in:5.15.0-67.74~20.04.1USN-5912-1

Fixed in:5.15.0-67.74USN-5912-1

linux-image-5.15.0-67-lowlatency-64kUbuntu

Fixed in:5.15.0-67.74~20.04.1USN-5912-1

Fixed in:5.15.0-67.74USN-5912-1

linux-image-5.17.0-1031-oemUbuntu

Fixed in:5.17.0-1031.32USN-6071-1

linux-image-5.19.0-1016-raspiUbuntu

Fixed in:5.19.0-1016.23USN-6024-1

linux-image-5.19.0-1016-raspi-nolpaeUbuntu

Fixed in:5.19.0-1016.23USN-6024-1

linux-image-5.19.0-1020-gcpUbuntu

Fixed in:5.19.0-1020.22USN-6024-1

linux-image-5.19.0-1020-oracleUbuntu

Fixed in:5.19.0-1020.23USN-6024-1

linux-image-5.19.0-1021-kvmUbuntu

Fixed in:5.19.0-1021.22USN-6024-1

linux-image-5.19.0-1022-lowlatencyUbuntu

Fixed in:5.19.0-1022.23USN-6024-1

linux-image-5.19.0-1022-lowlatency-64kUbuntu

Fixed in:5.19.0-1022.23USN-6024-1

linux-image-5.19.0-1023-awsUbuntu

Fixed in:5.19.0-1023.24USN-6024-1

linux-image-5.19.0-1023-azureUbuntu

Fixed in:5.19.0-1023.24USN-6024-1

linux-image-5.19.0-40-genericUbuntu

Fixed in:5.19.0-40.41~22.04.1USN-6024-1

Fixed in:5.19.0-40.41USN-6024-1

linux-image-5.19.0-40-generic-64kUbuntu

Fixed in:5.19.0-40.41~22.04.1USN-6024-1

Fixed in:5.19.0-40.41USN-6024-1

linux-image-5.19.0-40-generic-lpaeUbuntu

Fixed in:5.19.0-40.41~22.04.1USN-6024-1

Fixed in:5.19.0-40.41USN-6024-1

linux-image-6.0.0-1015-oemUbuntu

Fixed in:6.0.0-1015.15USN-6072-1

linux-image-awsUbuntu

Fixed in:5.15.0.1031.35~20.04.20USN-5912-1

Fixed in:5.15.0.1031.29USN-5912-1

Fixed in:5.19.0.1023.20USN-6024-1

linux-image-aws-lts-22.04Ubuntu

Fixed in:5.15.0.1031.29USN-5912-1

linux-image-azureUbuntu

Fixed in:5.15.0.1034.41~20.04.24USN-5912-1

Fixed in:5.15.0.1034.30USN-5912-1

Fixed in:5.19.0.1023.19USN-6024-1

linux-image-azure-fdeUbuntu

Fixed in:5.15.0.1034.41.11USN-5912-1

linux-image-azure-lts-22.04Ubuntu

Fixed in:5.15.0.1034.30USN-5912-1

linux-image-gcpUbuntu

Fixed in:5.15.0.1030.37~20.04.1USN-5912-1

Fixed in:5.15.0.1030.25USN-5912-1

Fixed in:5.19.0.1020.17USN-6024-1

linux-image-genericUbuntu

Fixed in:5.15.0.67.65USN-5912-1

Fixed in:5.19.0.40.36USN-6024-1

linux-image-generic-64kUbuntu

Fixed in:5.15.0.67.65USN-5912-1

Fixed in:5.19.0.40.36USN-6024-1

linux-image-generic-64k-hwe-20.04Ubuntu

Fixed in:5.15.0.67.74~20.04.28USN-5912-1

linux-image-generic-64k-hwe-22.04Ubuntu

Fixed in:5.19.0.40.41~22.04.13USN-6024-1

linux-image-generic-hwe-20.04Ubuntu

Fixed in:5.15.0.67.74~20.04.28USN-5912-1

linux-image-generic-hwe-22.04Ubuntu

Fixed in:5.19.0.40.41~22.04.13USN-6024-1

linux-image-generic-lpaeUbuntu

Fixed in:5.15.0.67.65USN-5912-1

Fixed in:5.19.0.40.36USN-6024-1

linux-image-generic-lpae-hwe-20.04Ubuntu

Fixed in:5.15.0.67.74~20.04.28USN-5912-1

linux-image-generic-lpae-hwe-22.04Ubuntu

Fixed in:5.19.0.40.41~22.04.13USN-6024-1

linux-image-gkeUbuntu

Fixed in:5.15.0.1028.27USN-5912-1

linux-image-gke-5.15Ubuntu

Fixed in:5.15.0.1028.33~20.04.1USN-5912-1

Fixed in:5.15.0.1028.27USN-5912-1

linux-image-gkeopUbuntu

Fixed in:5.15.0.1016.15USN-5938-1

linux-image-gkeop-5.15Ubuntu

Fixed in:5.15.0.1016.15USN-5938-1

linux-image-ibmUbuntu

Fixed in:5.15.0.1026.22USN-5935-1

linux-image-intel-iotgUbuntu

Fixed in:5.15.0.1026.25USN-5962-1

linux-image-kvmUbuntu

Fixed in:5.15.0.1029.25USN-5941-1

Fixed in:5.19.0.1021.18USN-6024-1

linux-image-lowlatencyUbuntu

Fixed in:5.15.0.67.72USN-5912-1

Fixed in:5.19.0.1022.18USN-6024-1

linux-image-lowlatency-64kUbuntu

Fixed in:5.15.0.67.72USN-5912-1

Fixed in:5.19.0.1022.18USN-6024-1

linux-image-lowlatency-64k-hwe-20.04Ubuntu

Fixed in:5.15.0.67.74~20.04.25USN-5912-1

linux-image-lowlatency-hwe-20.04Ubuntu

Fixed in:5.15.0.67.74~20.04.25USN-5912-1

linux-image-oem-22.04Ubuntu

Fixed in:5.17.0.1031.29USN-6071-1

linux-image-oem-22.04aUbuntu

Fixed in:5.17.0.1031.29USN-6071-1

linux-image-oem-22.04bUbuntu

Fixed in:6.0.0.1015.15USN-6072-1

linux-image-oracleUbuntu

Fixed in:5.15.0.1030.36~20.04.1USN-5912-1

Fixed in:5.15.0.1030.25USN-5912-1

Fixed in:5.19.0.1020.17USN-6024-1

linux-image-raspiUbuntu

Fixed in:5.15.0.1025.22USN-5935-1

Fixed in:5.19.0.1016.15USN-6024-1

linux-image-raspi-nolpaeUbuntu

Fixed in:5.15.0.1025.22USN-5935-1

Fixed in:5.19.0.1016.15USN-6024-1

linux-image-virtualUbuntu

Fixed in:5.15.0.67.65USN-5912-1

Fixed in:5.19.0.40.36USN-6024-1

linux-image-virtual-hwe-20.04Ubuntu

Fixed in:5.15.0.67.74~20.04.28USN-5912-1

linux-image-virtual-hwe-22.04Ubuntu

Fixed in:5.19.0.40.41~22.04.13USN-6024-1

linux-intel-iotgUbuntu

Fixed in:5.15.0-1026.31USN-5962-1

linux-kvmUbuntu

Fixed in:5.15.0-1029.34USN-5941-1

Fixed in:5.19.0-1021.22USN-6024-1

linux-lowlatencyUbuntu

Fixed in:5.15.0-67.74USN-5912-1

Fixed in:5.19.0-1022.23USN-6024-1

linux-lowlatency-hwe-5.15Ubuntu

Fixed in:5.15.0-67.74~20.04.1USN-5912-1

linux-oem-5.17Ubuntu

Fixed in:5.17.0-1031.32USN-6071-1

linux-oem-6.0Ubuntu

Fixed in:6.0.0-1015.15USN-6072-1

linux-oracleUbuntu

Fixed in:5.15.0-1030.36USN-5912-1

Fixed in:5.19.0-1020.23USN-6024-1

linux-oracle-5.15Ubuntu

Fixed in:5.15.0-1030.36~20.04.1USN-5912-1

linux-raspiUbuntu

Fixed in:5.15.0-1025.27USN-5935-1

Fixed in:5.19.0-1016.23USN-6024-1

lowlatency-4.15Ubuntu

Fixed in:4.15.0-143LSN-0094-1

Fixed in:4.15.0-69LSN-0094-1

lowlatency-5.4Ubuntu

Fixed in:5.4.0-26LSN-0094-1

oemUbuntu

Fixed in:4.15.0-1063LSN-0094-1

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorLocal

Attack ComplexityHigh

Privileges RequiredLow

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityNone

IntegrityNone

AvailabilityHigh

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

Exploit Intelligence

0.28%probability of exploitation in 30 days

20thpercentile

Low risk: more likely to be exploited than 20% of all known CVEs.

References

Patch1

bugzilla.redhat.com

Related Vulnerabilities

Other CWE-416 (Use After Free) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2019-0708	Critical	9.8	100%	KEV + Ransom	-
CVE-2021-31166	Critical	9.8	100%	KEV	Fix
CVE-2015-5119	Critical	9.8	99%	KEV	-
CVE-2010-3962	High	8.1	97%	KEV	-
CVE-2015-0313	Critical	9.8	96%	KEV	Fix
CVE-2017-9798	High	7.5	95%	-	Fix

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2025-04-01.