Is CVE-2023-1872 in the CISA KEV catalog?

No. CVE-2023-1872 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2023-1872?

CVE-2023-1872 has a CVSS v3 base score of 7.8 (HIGH).

What is the EPSS score for CVE-2023-1872?

CVE-2023-1872 has an EPSS score of 0.29% (21th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2023-1872?

Upgrade linux on debian 11 to 5.10.178-1 or later. Fixes are available for 105 affected products.

CVE & CISA-KEV Catalog

CVE-2023-1872

HIGH

7.8

CVSS v3

NVD

Description

A use-after-free vulnerability in the Linux Kernel io_uring system can be exploited to achieve local privilege escalation. The io_file_get_fixed function lacks the presence of ctx->uring_lock which can lead to a Use-After-Free vulnerability due a race condition with fixed files getting unregistered. We recommend upgrading past commit da24142b1ef9fd5d36b76e36bab328a5b27523e8.

CWE-416Use After Free

How to fix

Remediation Available

linuxDebian

Fixed in:5.10.178-1CVE-2023-1872

Fixed in:5.17.3-1CVE-2023-1872

awsUbuntu

Fixed in:4.4.0-1098LSN-0102-1

Fixed in:4.15.0-1054LSN-0102-1

Fixed in:5.4.0-1009LSN-0102-1

Fixed in:5.4.0-1009LSN-0095-1

Fixed in:5.15.0-1000LSN-0102-1

Fixed in:5.15.0-1000LSN-0095-1

aws-5.15Ubuntu

Fixed in:5.15.0-1000LSN-0102-1

Fixed in:5.15.0-1000LSN-0095-1

aws-5.4Ubuntu

Fixed in:5.4.0-1069LSN-0095-1

Fixed in:5.4.0-1069LSN-0102-1

aws-6.5Ubuntu

Fixed in:6.5.0-1007LSN-0102-1

aws-hweUbuntu

Fixed in:4.15.0-1126LSN-0102-1

azureUbuntu

Fixed in:4.15.0-1063LSN-0102-1

Fixed in:5.4.0-1010LSN-0095-1

Fixed in:5.4.0-1010LSN-0102-1

Fixed in:5.15.0-1000LSN-0102-1

Fixed in:5.15.0-1000LSN-0095-1

azure-4.15Ubuntu

Fixed in:4.15.0-1115LSN-0102-1

azure-5.4Ubuntu

Fixed in:5.4.0-1069LSN-0102-1

Fixed in:5.4.0-1069LSN-0095-1

azure-6.5Ubuntu

Fixed in:6.5.0-1000LSN-0102-1

gcpUbuntu

Fixed in:4.15.0-1118LSN-0102-1

Fixed in:5.4.0-1009LSN-0095-1

Fixed in:5.4.0-1009LSN-0102-1

Fixed in:5.15.0-1000LSN-0095-1

Fixed in:5.15.0-1000LSN-0102-1

gcp-4.15Ubuntu

Fixed in:4.15.0-1154LSN-0102-1

gcp-5.15Ubuntu

Fixed in:5.15.0-1000LSN-0095-1

Fixed in:5.15.0-1000LSN-0102-1

gcp-5.4Ubuntu

Fixed in:5.4.0-1069LSN-0102-1

Fixed in:5.4.0-1069LSN-0095-1

gcp-6.5Ubuntu

Fixed in:6.5.0-1000LSN-0102-1

generic-4.15Ubuntu

Fixed in:4.15.0-143LSN-0102-1

Fixed in:4.15.0-69LSN-0102-1

generic-4.4Ubuntu

Fixed in:4.4.0-168LSN-0102-1

Fixed in:4.4.0-211LSN-0102-1

generic-5.15Ubuntu

Fixed in:5.15.0-0LSN-0102-1

generic-5.4Ubuntu

Fixed in:5.4.0-26LSN-0095-1

Fixed in:5.4.0-26LSN-0102-1

Fixed in:5.4.0-26LSN-0095-1

gkeUbuntu

Fixed in:5.4.0-1033LSN-0095-1

Fixed in:5.4.0-1033LSN-0102-1

Fixed in:5.15.0-1000LSN-0102-1

Fixed in:5.15.0-1000LSN-0095-1

gke-5.15Ubuntu

Fixed in:5.15.0-1000LSN-0095-1

Fixed in:5.15.0-1000LSN-0102-1

gke-5.4Ubuntu

Fixed in:5.4.0-1009LSN-0095-1

gkeopUbuntu

Fixed in:5.4.0-1009LSN-0102-1

Fixed in:5.4.0-1009LSN-0095-1

gkeop-5.4Ubuntu

Fixed in:5.4.0-1007LSN-0095-1

hwe-6.5Ubuntu

Fixed in:6.5.0-5LSN-0102-1

ibmUbuntu

Fixed in:5.4.0-1009LSN-0102-1

Fixed in:5.4.0-1009LSN-0095-1

Fixed in:5.15.0-1000LSN-0095-1

Fixed in:5.15.0-1000LSN-0102-1

ibm-5.15Ubuntu

Fixed in:5.15.0-1000LSN-0102-1

ibm-5.4Ubuntu

Fixed in:5.4.0-1009LSN-0095-1

linuxUbuntu

Fixed in:5.15.0-71LSN-0102-1

Fixed in:5.15.0-71LSN-0095-1

Fixed in:5.15.0-71.78USN-6044-1

linux-awsUbuntu

Fixed in:5.15.0-1035.39USN-6044-1

linux-aws-5.15Ubuntu

Fixed in:5.15.0-1035.39~20.04.1USN-6044-1

linux-azureUbuntu

Fixed in:5.15.0-1037.44USN-6044-1

linux-azure-5.15Ubuntu

Fixed in:5.15.0-1037.44~20.04.1USN-6051-1

linux-azure-fdeUbuntu

Fixed in:5.15.0-1037.44.1USN-6051-1

linux-azure-fde-5.15Ubuntu

Fixed in:5.15.0-1037.44~20.04.1.1USN-6070-1

linux-gcp-5.15Ubuntu

Fixed in:5.15.0-1033.41~20.04.1USN-6107-1

linux-gkeUbuntu

Fixed in:5.15.0-1032.37USN-6044-1

linux-gke-5.15Ubuntu

Fixed in:5.15.0-1032.37~20.04.1USN-6044-1

linux-gkeopUbuntu

Fixed in:5.15.0-1019.24USN-6044-1

linux-hwe-5.15Ubuntu

Fixed in:5.15.0-71.78~20.04.1USN-6044-1

linux-ibmUbuntu

Fixed in:5.15.0-1029.32USN-6044-1

linux-image-5.15.0-1019-gkeopUbuntu

Fixed in:5.15.0-1019.24USN-6044-1

linux-image-5.15.0-1028-raspiUbuntu

Fixed in:5.15.0-1028.30USN-6070-1

linux-image-5.15.0-1028-raspi-nolpaeUbuntu

Fixed in:5.15.0-1028.30USN-6070-1

linux-image-5.15.0-1029-ibmUbuntu

Fixed in:5.15.0-1029.32USN-6044-1

linux-image-5.15.0-1030-intel-iotgUbuntu

Fixed in:5.15.0-1030.35~20.04.1USN-6134-1

Fixed in:5.15.0-1030.35USN-6133-1

linux-image-5.15.0-1032-gkeUbuntu

Fixed in:5.15.0-1032.37~20.04.1USN-6044-1

Fixed in:5.15.0-1032.37USN-6044-1

linux-image-5.15.0-1032-kvmUbuntu

Fixed in:5.15.0-1032.37USN-6051-1

linux-image-5.15.0-1033-gcpUbuntu

Fixed in:5.15.0-1033.41~20.04.1USN-6107-1

linux-image-5.15.0-1034-oracleUbuntu

Fixed in:5.15.0-1034.40~20.04.1USN-6044-1

Fixed in:5.15.0-1034.40USN-6044-1

linux-image-5.15.0-1035-awsUbuntu

Fixed in:5.15.0-1035.39~20.04.1USN-6044-1

Fixed in:5.15.0-1035.39USN-6044-1

linux-image-5.15.0-1037-azureUbuntu

Fixed in:5.15.0-1037.44~20.04.1USN-6051-1

Fixed in:5.15.0-1037.44USN-6044-1

linux-image-5.15.0-1037-azure-fdeUbuntu

Fixed in:5.15.0-1037.44~20.04.1.1USN-6070-1

Fixed in:5.15.0-1037.44.1USN-6051-1

linux-image-5.15.0-71-genericUbuntu

Fixed in:5.15.0-71.78~20.04.1USN-6044-1

Fixed in:5.15.0-71.78USN-6044-1

linux-image-5.15.0-71-generic-64kUbuntu

Fixed in:5.15.0-71.78~20.04.1USN-6044-1

Fixed in:5.15.0-71.78USN-6044-1

linux-image-5.15.0-71-generic-lpaeUbuntu

Fixed in:5.15.0-71.78~20.04.1USN-6044-1

Fixed in:5.15.0-71.78USN-6044-1

linux-image-5.15.0-71-lowlatencyUbuntu

Fixed in:5.15.0-71.78~20.04.1USN-6044-1

Fixed in:5.15.0-71.78USN-6044-1

linux-image-5.15.0-71-lowlatency-64kUbuntu

Fixed in:5.15.0-71.78~20.04.1USN-6044-1

Fixed in:5.15.0-71.78USN-6044-1

linux-image-awsUbuntu

Fixed in:5.15.0.1035.39~20.04.24USN-6044-1

linux-image-aws-lts-22.04Ubuntu

Fixed in:5.15.0.1035.34USN-6044-1

linux-image-azureUbuntu

Fixed in:5.15.0.1037.44~20.04.27USN-6051-1

Fixed in:5.15.0.1037.33USN-6044-1

linux-image-azure-cvmUbuntu

Fixed in:5.15.0.1037.44~20.04.27USN-6051-1

linux-image-azure-fdeUbuntu

Fixed in:5.15.0.1037.44~20.04.1.16USN-6070-1

Fixed in:5.15.0.1037.44.14USN-6051-1

linux-image-azure-lts-22.04Ubuntu

Fixed in:5.15.0.1037.33USN-6044-1

linux-image-gcpUbuntu

Fixed in:5.15.0.1033.41~20.04.1USN-6107-1

linux-image-genericUbuntu

Fixed in:5.15.0.71.69USN-6044-1

linux-image-generic-64kUbuntu

Fixed in:5.15.0.71.69USN-6044-1

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

Fixed in:5.15.0.71.78~20.04.32USN-6044-1

linux-image-generic-hwe-20.04Ubuntu

Fixed in:5.15.0.71.78~20.04.32USN-6044-1

linux-image-generic-lpaeUbuntu

Fixed in:5.15.0.71.69USN-6044-1

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

Fixed in:5.15.0.71.78~20.04.32USN-6044-1

linux-image-gkeUbuntu

Fixed in:5.15.0.1032.31USN-6044-1

linux-image-gke-5.15Ubuntu

Fixed in:5.15.0.1032.37~20.04.1USN-6044-1

Fixed in:5.15.0.1032.31USN-6044-1

linux-image-gkeopUbuntu

Fixed in:5.15.0.1019.18USN-6044-1

linux-image-gkeop-5.15Ubuntu

Fixed in:5.15.0.1019.18USN-6044-1

linux-image-ibmUbuntu

Fixed in:5.15.0.1029.25USN-6044-1

linux-image-intelUbuntu

Fixed in:5.15.0.1030.35~20.04.22USN-6134-1

linux-image-intel-iotgUbuntu

Fixed in:5.15.0.1030.35~20.04.22USN-6134-1

Fixed in:5.15.0.1030.29USN-6133-1

linux-image-kvmUbuntu

Fixed in:5.15.0.1032.28USN-6051-1

linux-image-lowlatencyUbuntu

Fixed in:5.15.0.71.76USN-6044-1

linux-image-lowlatency-64kUbuntu

Fixed in:5.15.0.71.76USN-6044-1

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

Fixed in:5.15.0.71.78~20.04.29USN-6044-1

linux-image-lowlatency-hwe-20.04Ubuntu

Fixed in:5.15.0.71.78~20.04.29USN-6044-1

linux-image-oem-20.04Ubuntu

Fixed in:5.15.0.71.78~20.04.32USN-6044-1

linux-image-oem-20.04bUbuntu

Fixed in:5.15.0.71.78~20.04.32USN-6044-1

linux-image-oem-20.04cUbuntu

Fixed in:5.15.0.71.78~20.04.32USN-6044-1

linux-image-oem-20.04dUbuntu

Fixed in:5.15.0.71.78~20.04.32USN-6044-1

linux-image-oracleUbuntu

Fixed in:5.15.0.1034.40~20.04.1USN-6044-1

Fixed in:5.15.0.1034.29USN-6044-1

linux-image-raspiUbuntu

Fixed in:5.15.0.1028.25USN-6070-1

linux-image-raspi-nolpaeUbuntu

Fixed in:5.15.0.1028.25USN-6070-1

linux-image-virtualUbuntu

Fixed in:5.15.0.71.69USN-6044-1

linux-image-virtual-hwe-20.04Ubuntu

Fixed in:5.15.0.71.78~20.04.32USN-6044-1

linux-intel-iotgUbuntu

Fixed in:5.15.0-1030.35USN-6133-1

linux-intel-iotg-5.15Ubuntu

Fixed in:5.15.0-1030.35~20.04.1USN-6134-1

linux-kvmUbuntu

Fixed in:5.15.0-1032.37USN-6051-1

linux-lowlatencyUbuntu

Fixed in:5.15.0-71.78USN-6044-1

linux-lowlatency-hwe-5.15Ubuntu

Fixed in:5.15.0-71.78~20.04.1USN-6044-1

linux-oracleUbuntu

Fixed in:5.15.0-1034.40USN-6044-1

linux-oracle-5.15Ubuntu

Fixed in:5.15.0-1034.40~20.04.1USN-6044-1

linux-raspiUbuntu

Fixed in:5.15.0-1028.30USN-6070-1

lowlatencyUbuntu

Fixed in:5.15.0-25LSN-0102-1

Fixed in:5.15.0-25LSN-0095-1

lowlatency-4.15Ubuntu

Fixed in:4.15.0-143LSN-0102-1

Fixed in:4.15.0-69LSN-0102-1

lowlatency-4.4Ubuntu

Fixed in:4.4.0-168LSN-0102-1

Fixed in:4.4.0-211LSN-0102-1

lowlatency-5.15Ubuntu

Fixed in:5.15.0-0LSN-0102-1

lowlatency-5.4Ubuntu

Fixed in:5.4.0-26LSN-0095-1

Fixed in:5.4.0-26LSN-0102-1

Fixed in:5.4.0-26LSN-0095-1

Fixed in:5.4.0-26LSN-0102-1

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 ComplexityLow

Privileges RequiredLow

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

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

Exploit Intelligence

0.29%probability of exploitation in 30 days

21stpercentile

Low risk: more likely to be exploited than 21% of all known CVEs.

References

Patch1

git.kernel.org

Third-Party Advisory3

Mailing List1

git.kernel.org

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 2025-02-13.