Is CVE-2023-32248 in the CISA KEV catalog?

No. CVE-2023-32248 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2023-32248?

CVE-2023-32248 has a CVSS v3 base score of 7.5 (HIGH).

What is the EPSS score for CVE-2023-32248?

CVE-2023-32248 has an EPSS score of 4.06% (89th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2023-32248?

Upgrade linux on debian 12 to 6.1.37-1 or later. Fixes are available for 95 affected products.

CVE & CISA-KEV Catalog

CVE-2023-32248

HIGHEPSS 89th pctl

7.5

CVSS v3

NVD

Description

A flaw was found in the Linux kernel's ksmbd, a high-performance in-kernel SMB server. The specific flaw exists within the handling of SMB2_TREE_CONNECT and SMB2_QUERY_INFO commands. The issue results from the lack of proper validation of a pointer prior to accessing it. An attacker can leverage this vulnerability to create a denial-of-service condition on the system.

CWE-476NULL Pointer Dereference

How to fix

Remediation Available

linuxDebian

Fixed in:6.1.37-1CVE-2023-32248

Fixed in:6.3.7-1CVE-2023-32248

linuxUbuntu

Fixed in:5.15.0-79.86USN-6300-1

Fixed in:6.2.0-27.28USN-6283-1

linux-awsUbuntu

Fixed in:5.15.0-1042.47USN-6300-1

Fixed in:6.2.0-1009.9USN-6283-1

linux-aws-5.15Ubuntu

Fixed in:5.15.0-1041.46~20.04.1USN-6300-1

linux-azureUbuntu

Fixed in:5.15.0-1045.52USN-6332-1

Fixed in:6.2.0-1009.9USN-6283-1

linux-azure-5.15Ubuntu

Fixed in:5.15.0-1045.52~20.04.1USN-6332-1

linux-azure-fdeUbuntu

Fixed in:5.15.0-1045.52.1USN-6332-1

linux-azure-fde-5.15Ubuntu

Fixed in:5.15.0-1043.50~20.04.1.1USN-6347-1

linux-gcpUbuntu

Fixed in:5.15.0-1039.47USN-6300-1

Fixed in:6.2.0-1011.11USN-6283-1

linux-gcp-5.15Ubuntu

Fixed in:5.15.0-1039.47~20.04.1USN-6311-1

linux-gkeUbuntu

Fixed in:5.15.0-1039.44USN-6311-1

linux-gke-5.15Ubuntu

Fixed in:5.15.0-1039.44~20.04.1USN-6311-1

linux-gkeopUbuntu

Fixed in:5.15.0-1025.30USN-6311-1

linux-gkeop-5.15Ubuntu

Fixed in:5.15.0-1025.30~20.04.1USN-6311-1

linux-hwe-5.15Ubuntu

Fixed in:5.15.0-79.86~20.04.2USN-6300-1

linux-ibmUbuntu

Fixed in:5.15.0-1035.38USN-6300-1

Fixed in:6.2.0-1007.7USN-6283-1

linux-image-5.15.0-1025-gkeopUbuntu

Fixed in:5.15.0-1025.30~20.04.1USN-6311-1

Fixed in:5.15.0-1025.30USN-6311-1

linux-image-5.15.0-1030-nvidiaUbuntu

Fixed in:5.15.0-1030.30USN-6300-1

linux-image-5.15.0-1030-nvidia-lowlatencyUbuntu

Fixed in:5.15.0-1030.30USN-6300-1

linux-image-5.15.0-1035-ibmUbuntu

Fixed in:5.15.0-1035.38USN-6300-1

linux-image-5.15.0-1035-raspiUbuntu

Fixed in:5.15.0-1035.38USN-6300-1

linux-image-5.15.0-1037-intel-iotgUbuntu

Fixed in:5.15.0-1037.42~20.04.1USN-6300-1

Fixed in:5.15.0-1037.42USN-6300-1

linux-image-5.15.0-1039-gcpUbuntu

Fixed in:5.15.0-1039.47~20.04.1USN-6311-1

Fixed in:5.15.0-1039.47USN-6300-1

linux-image-5.15.0-1039-gkeUbuntu

Fixed in:5.15.0-1039.44~20.04.1USN-6311-1

Fixed in:5.15.0-1039.44USN-6311-1

linux-image-5.15.0-1039-kvmUbuntu

Fixed in:5.15.0-1039.44USN-6300-1

linux-image-5.15.0-1040-oracleUbuntu

Fixed in:5.15.0-1040.46~20.04.1USN-6300-1

Fixed in:5.15.0-1040.46USN-6300-1

linux-image-5.15.0-1041-awsUbuntu

Fixed in:5.15.0-1041.46~20.04.1USN-6300-1

linux-image-5.15.0-1042-awsUbuntu

Fixed in:5.15.0-1042.47USN-6300-1

linux-image-5.15.0-1043-azure-fdeUbuntu

Fixed in:5.15.0-1043.50~20.04.1.1USN-6347-1

linux-image-5.15.0-1045-azureUbuntu

Fixed in:5.15.0-1045.52~20.04.1USN-6332-1

Fixed in:5.15.0-1045.52USN-6332-1

linux-image-5.15.0-1045-azure-fdeUbuntu

Fixed in:5.15.0-1045.52.1USN-6332-1

linux-image-5.15.0-79-genericUbuntu

Fixed in:5.15.0-79.86~20.04.2USN-6300-1

Fixed in:5.15.0-79.86USN-6300-1

linux-image-5.15.0-79-generic-64kUbuntu

Fixed in:5.15.0-79.86~20.04.2USN-6300-1

Fixed in:5.15.0-79.86USN-6300-1

linux-image-5.15.0-79-generic-lpaeUbuntu

Fixed in:5.15.0-79.86~20.04.2USN-6300-1

Fixed in:5.15.0-79.86USN-6300-1

linux-image-5.15.0-79-lowlatencyUbuntu

Fixed in:5.15.0-79.88~20.04.1USN-6300-1

Fixed in:5.15.0-79.88USN-6300-1

linux-image-5.15.0-79-lowlatency-64kUbuntu

Fixed in:5.15.0-79.88~20.04.1USN-6300-1

Fixed in:5.15.0-79.88USN-6300-1

linux-image-6.2.0-1007-ibmUbuntu

Fixed in:6.2.0-1007.7USN-6283-1

linux-image-6.2.0-1009-awsUbuntu

Fixed in:6.2.0-1009.9USN-6283-1

linux-image-6.2.0-1009-azureUbuntu

Fixed in:6.2.0-1009.9USN-6283-1

linux-image-6.2.0-1009-oracleUbuntu

Fixed in:6.2.0-1009.9USN-6283-1

linux-image-6.2.0-1010-kvmUbuntu

Fixed in:6.2.0-1010.10USN-6283-1

linux-image-6.2.0-1010-lowlatencyUbuntu

Fixed in:6.2.0-1010.10USN-6283-1

linux-image-6.2.0-1010-lowlatency-64kUbuntu

Fixed in:6.2.0-1010.10USN-6283-1

linux-image-6.2.0-1010-raspiUbuntu

Fixed in:6.2.0-1010.12USN-6283-1

linux-image-6.2.0-1011-gcpUbuntu

Fixed in:6.2.0-1011.11USN-6283-1

linux-image-6.2.0-27-genericUbuntu

Fixed in:6.2.0-27.28USN-6283-1

linux-image-6.2.0-27-generic-64kUbuntu

Fixed in:6.2.0-27.28USN-6283-1

linux-image-6.2.0-27-generic-lpaeUbuntu

Fixed in:6.2.0-27.28USN-6283-1

linux-image-awsUbuntu

Fixed in:5.15.0.1041.46~20.04.30USN-6300-1

Fixed in:6.2.0.1009.10USN-6283-1

linux-image-aws-lts-22.04Ubuntu

Fixed in:5.15.0.1042.41USN-6300-1

linux-image-azureUbuntu

Fixed in:5.15.0.1045.52~20.04.34USN-6332-1

Fixed in:6.2.0.1009.9USN-6283-1

linux-image-azure-cvmUbuntu

Fixed in:5.15.0.1045.52~20.04.34USN-6332-1

linux-image-azure-fdeUbuntu

Fixed in:5.15.0.1043.50~20.04.1.22USN-6347-1

linux-image-azure-fde-lts-22.04Ubuntu

Fixed in:5.15.0.1045.52.23USN-6332-1

linux-image-azure-lts-22.04Ubuntu

Fixed in:5.15.0.1045.41USN-6332-1

linux-image-gcpUbuntu

Fixed in:5.15.0.1039.47~20.04.1USN-6311-1

Fixed in:6.2.0.1011.11USN-6283-1

linux-image-gcp-lts-22.04Ubuntu

Fixed in:5.15.0.1039.35USN-6300-1

linux-image-genericUbuntu

Fixed in:5.15.0.79.76USN-6300-1

Fixed in:6.2.0.27.27USN-6283-1

linux-image-generic-64kUbuntu

Fixed in:5.15.0.79.76USN-6300-1

Fixed in:6.2.0.27.27USN-6283-1

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

Fixed in:5.15.0.79.86~20.04.39USN-6300-1

linux-image-generic-hwe-20.04Ubuntu

Fixed in:5.15.0.79.86~20.04.39USN-6300-1

linux-image-generic-lpaeUbuntu

Fixed in:5.15.0.79.76USN-6300-1

Fixed in:6.2.0.27.27USN-6283-1

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

Fixed in:5.15.0.79.86~20.04.39USN-6300-1

linux-image-gkeUbuntu

Fixed in:5.15.0.1039.38USN-6311-1

linux-image-gke-5.15Ubuntu

Fixed in:5.15.0.1039.44~20.04.1USN-6311-1

Fixed in:5.15.0.1039.38USN-6311-1

linux-image-gkeopUbuntu

Fixed in:5.15.0.1025.24USN-6311-1

linux-image-gkeop-5.15Ubuntu

Fixed in:5.15.0.1025.30~20.04.21USN-6311-1

Fixed in:5.15.0.1025.24USN-6311-1

linux-image-ibmUbuntu

Fixed in:5.15.0.1035.31USN-6300-1

Fixed in:6.2.0.1007.7USN-6283-1

linux-image-intelUbuntu

Fixed in:5.15.0.1037.42~20.04.27USN-6300-1

linux-image-intel-iotgUbuntu

Fixed in:5.15.0.1037.42~20.04.27USN-6300-1

Fixed in:5.15.0.1037.36USN-6300-1

linux-image-kvmUbuntu

Fixed in:5.15.0.1039.35USN-6300-1

Fixed in:6.2.0.1010.10USN-6283-1

linux-image-lowlatencyUbuntu

Fixed in:5.15.0.79.83USN-6300-1

Fixed in:6.2.0.1010.10USN-6283-1

linux-image-lowlatency-64kUbuntu

Fixed in:5.15.0.79.83USN-6300-1

Fixed in:6.2.0.1010.10USN-6283-1

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

Fixed in:5.15.0.79.88~20.04.36USN-6300-1

linux-image-lowlatency-hwe-20.04Ubuntu

Fixed in:5.15.0.79.88~20.04.36USN-6300-1

linux-image-nvidiaUbuntu

Fixed in:5.15.0.1030.30USN-6300-1

linux-image-nvidia-lowlatencyUbuntu

Fixed in:5.15.0.1030.30USN-6300-1

linux-image-oem-20.04Ubuntu

Fixed in:5.15.0.79.86~20.04.39USN-6300-1

linux-image-oem-20.04bUbuntu

Fixed in:5.15.0.79.86~20.04.39USN-6300-1

linux-image-oem-20.04cUbuntu

Fixed in:5.15.0.79.86~20.04.39USN-6300-1

linux-image-oem-20.04dUbuntu

Fixed in:5.15.0.79.86~20.04.39USN-6300-1

linux-image-oracleUbuntu

Fixed in:5.15.0.1040.46~20.04.1USN-6300-1

Fixed in:5.15.0.1040.35USN-6300-1

Fixed in:6.2.0.1009.9USN-6283-1

linux-image-raspiUbuntu

Fixed in:5.15.0.1035.33USN-6300-1

Fixed in:6.2.0.1010.13USN-6283-1

linux-image-raspi-nolpaeUbuntu

Fixed in:5.15.0.1035.33USN-6300-1

Fixed in:6.2.0.1010.13USN-6283-1

linux-image-virtualUbuntu

Fixed in:5.15.0.79.76USN-6300-1

Fixed in:6.2.0.27.27USN-6283-1

linux-image-virtual-hwe-20.04Ubuntu

Fixed in:5.15.0.79.86~20.04.39USN-6300-1

linux-intel-iotgUbuntu

Fixed in:5.15.0-1037.42USN-6300-1

linux-intel-iotg-5.15Ubuntu

Fixed in:5.15.0-1037.42~20.04.1USN-6300-1

linux-kvmUbuntu

Fixed in:5.15.0-1039.44USN-6300-1

Fixed in:6.2.0-1010.10USN-6283-1

linux-lowlatencyUbuntu

Fixed in:5.15.0-79.88USN-6300-1

Fixed in:6.2.0-1010.10USN-6283-1

linux-lowlatency-hwe-5.15Ubuntu

Fixed in:5.15.0-79.88~20.04.1USN-6300-1

linux-nvidiaUbuntu

Fixed in:5.15.0-1030.30USN-6300-1

linux-oracleUbuntu

Fixed in:5.15.0-1040.46USN-6300-1

Fixed in:6.2.0-1009.9USN-6283-1

linux-oracle-5.15Ubuntu

Fixed in:5.15.0-1040.46~20.04.1USN-6300-1

linux-raspiUbuntu

Fixed in:5.15.0-1035.38USN-6300-1

Fixed in:6.2.0-1010.12USN-6283-1

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 VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityNone

IntegrityNone

AvailabilityHigh

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

Exploit Intelligence

4.06%probability of exploitation in 30 days

89thpercentile

Elevated risk: more likely to be exploited than 89% of all known CVEs.

References

Patch2

Third-Party Advisory2

Related Vulnerabilities

Other CWE-476 (NULL Pointer Dereference) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2023-21758	High	7.5	92%	-	Fix
CVE-2023-21547	High	7.5	88%	-	Fix
CVE-2014-3470	Medium	4.3	86%	-	Fix
CVE-2021-44224	High	8.2	82%	-	Fix
CVE-2016-0742	High	7.5	82%	-	Fix
CVE-2009-1386	Medium	5.0	80%	-	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 2024-11-21.