Is CVE-2023-52631 in the CISA KEV catalog?

No. CVE-2023-52631 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2023-52631?

CVE-2023-52631 has a CVSS v3 base score of 5.5 (MEDIUM).

What is the EPSS score for CVE-2023-52631?

CVE-2023-52631 has an EPSS score of 0.22% (13th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2023-52631?

Upgrade linux on debian 12 to 6.1.82-1 or later. Fixes are available for 123 affected products.

CVE & CISA-KEV Catalog

CVE-2023-52631

MEDIUM

5.5

CVSS v3

NVD

Description

In the Linux kernel, the following vulnerability has been resolved: fs/ntfs3: Fix an NULL dereference bug The issue here is when this is called from ntfs_load_attr_list(). The "size" comes from le32_to_cpu(attr->res.data_size) so it can't overflow on a 64bit systems but on 32bit systems the "+ 1023" can overflow and the result is zero. This means that the kmalloc will succeed by returning the ZERO_SIZE_PTR and then the memcpy() will crash with an Oops on the next line.

CWE-476NULL Pointer Dereference

How to fix

Remediation Available

linuxDebian

Fixed in:6.1.82-1CVE-2023-52631

Fixed in:6.7.7-1CVE-2023-52631

linuxUbuntu

Fixed in:5.15.0-106.116USN-6766-1

Fixed in:6.5.0-44.44USN-6895-1

linux-awsUbuntu

Fixed in:5.15.0-1061.67USN-6766-3

linux-aws-5.15Ubuntu

Fixed in:5.15.0-1061.67~20.04.1USN-6766-3

linux-aws-6.5Ubuntu

Fixed in:6.5.0-1023.23~22.04.1USN-6895-3

linux-azureUbuntu

Fixed in:5.15.0-1063.72USN-6766-1

linux-azure-5.15Ubuntu

Fixed in:5.15.0-1063.72~20.04.1USN-6766-1

linux-azure-6.5Ubuntu

Fixed in:6.5.0-1024.25~22.04.1USN-6895-2

linux-azure-fdeUbuntu

Fixed in:5.15.0-1063.72.1USN-6766-1

linux-azure-fde-5.15Ubuntu

Fixed in:5.15.0-1063.72~20.04.1.1USN-6766-1

linux-gcpUbuntu

Fixed in:5.15.0-1059.67USN-6766-1

Fixed in:6.5.0-1024.26USN-6895-1

linux-gcp-5.15Ubuntu

Fixed in:5.15.0-1059.67~20.04.1USN-6766-1

linux-gcp-6.5Ubuntu

Fixed in:6.5.0-1024.26~22.04.1USN-6895-2

linux-gkeUbuntu

Fixed in:5.15.0-1058.63USN-6766-1

linux-gkeopUbuntu

Fixed in:5.15.0-1044.51USN-6766-1

linux-gkeop-5.15Ubuntu

Fixed in:5.15.0-1044.51~20.04.1USN-6766-1

linux-hwe-5.15Ubuntu

Fixed in:5.15.0-106.116~20.04.1USN-6766-2

linux-hwe-6.5Ubuntu

Fixed in:6.5.0-44.44~22.04.1USN-6900-1

linux-ibmUbuntu

Fixed in:5.15.0-1054.57USN-6766-1

linux-ibm-5.15Ubuntu

Fixed in:5.15.0-1054.57~20.04.1USN-6766-1

linux-image-5.15.0-1044-gkeopUbuntu

Fixed in:5.15.0-1044.51~20.04.1USN-6766-1

Fixed in:5.15.0-1044.51USN-6766-1

linux-image-5.15.0-1054-ibmUbuntu

Fixed in:5.15.0-1054.57~20.04.1USN-6766-1

Fixed in:5.15.0-1054.57USN-6766-1

linux-image-5.15.0-1054-nvidiaUbuntu

Fixed in:5.15.0-1054.55USN-6766-1

linux-image-5.15.0-1054-nvidia-lowlatencyUbuntu

Fixed in:5.15.0-1054.55USN-6766-1

linux-image-5.15.0-1054-raspiUbuntu

Fixed in:5.15.0-1054.57USN-6766-2

linux-image-5.15.0-1057-intel-iotgUbuntu

Fixed in:5.15.0-1057.63USN-6795-1

linux-image-5.15.0-1058-gkeUbuntu

Fixed in:5.15.0-1058.63USN-6766-1

linux-image-5.15.0-1058-intel-iotgUbuntu

Fixed in:5.15.0-1058.64~20.04.1USN-6828-1

linux-image-5.15.0-1058-kvmUbuntu

Fixed in:5.15.0-1058.63USN-6766-1

linux-image-5.15.0-1059-gcpUbuntu

Fixed in:5.15.0-1059.67~20.04.1USN-6766-1

Fixed in:5.15.0-1059.67USN-6766-1

linux-image-5.15.0-1059-oracleUbuntu

Fixed in:5.15.0-1059.65~20.04.1USN-6766-1

Fixed in:5.15.0-1059.65USN-6766-1

linux-image-5.15.0-106-genericUbuntu

Fixed in:5.15.0-106.116~20.04.1USN-6766-2

Fixed in:5.15.0-106.116USN-6766-1

linux-image-5.15.0-106-generic-64kUbuntu

Fixed in:5.15.0-106.116~20.04.1USN-6766-2

Fixed in:5.15.0-106.116USN-6766-1

linux-image-5.15.0-106-generic-lpaeUbuntu

Fixed in:5.15.0-106.116~20.04.1USN-6766-2

Fixed in:5.15.0-106.116USN-6766-1

linux-image-5.15.0-106-lowlatencyUbuntu

Fixed in:5.15.0-106.116~20.04.1USN-6766-1

Fixed in:5.15.0-106.116USN-6766-1

linux-image-5.15.0-106-lowlatency-64kUbuntu

Fixed in:5.15.0-106.116~20.04.1USN-6766-1

Fixed in:5.15.0-106.116USN-6766-1

linux-image-5.15.0-1061-awsUbuntu

Fixed in:5.15.0-1061.67~20.04.1USN-6766-3

Fixed in:5.15.0-1061.67USN-6766-3

linux-image-5.15.0-1063-azureUbuntu

Fixed in:5.15.0-1063.72~20.04.1USN-6766-1

Fixed in:5.15.0-1063.72USN-6766-1

linux-image-5.15.0-1063-azure-fdeUbuntu

Fixed in:5.15.0-1063.72~20.04.1.1USN-6766-1

Fixed in:5.15.0-1063.72.1USN-6766-1

linux-image-6.5.0-1017-starfiveUbuntu

Fixed in:6.5.0-1017.18~22.04.1USN-6895-3

linux-image-6.5.0-1020-raspiUbuntu

Fixed in:6.5.0-1020.23USN-6895-1

linux-image-6.5.0-1023-awsUbuntu

Fixed in:6.5.0-1023.23~22.04.1USN-6895-3

linux-image-6.5.0-1023-nvidiaUbuntu

Fixed in:6.5.0-1023.24USN-6895-1

linux-image-6.5.0-1023-nvidia-64kUbuntu

Fixed in:6.5.0-1023.24USN-6895-1

linux-image-6.5.0-1024-azureUbuntu

Fixed in:6.5.0-1024.25~22.04.1USN-6895-2

linux-image-6.5.0-1024-azure-fdeUbuntu

Fixed in:6.5.0-1024.25~22.04.1USN-6895-2

linux-image-6.5.0-1024-gcpUbuntu

Fixed in:6.5.0-1024.26~22.04.1USN-6895-2

Fixed in:6.5.0-1024.26USN-6895-1

linux-image-6.5.0-1026-oracleUbuntu

Fixed in:6.5.0-1026.26~22.04.1USN-6895-3

linux-image-6.5.0-1026-oracle-64kUbuntu

Fixed in:6.5.0-1026.26~22.04.1USN-6895-3

linux-image-6.5.0-1027-oemUbuntu

Fixed in:6.5.0-1027.28USN-6895-4

linux-image-6.5.0-44-genericUbuntu

Fixed in:6.5.0-44.44~22.04.1USN-6900-1

Fixed in:6.5.0-44.44USN-6895-1

linux-image-6.5.0-44-generic-64kUbuntu

Fixed in:6.5.0-44.44~22.04.1USN-6900-1

Fixed in:6.5.0-44.44USN-6895-1

linux-image-6.5.0-44-lowlatencyUbuntu

Fixed in:6.5.0-44.44.1~22.04.1USN-6895-3

linux-image-6.5.0-44-lowlatency-64kUbuntu

Fixed in:6.5.0-44.44.1~22.04.1USN-6895-3

linux-image-awsUbuntu

Fixed in:5.15.0.1061.67~20.04.1USN-6766-3

Fixed in:6.5.0.1023.23~22.04.1USN-6895-3

linux-image-aws-lts-22.04Ubuntu

Fixed in:5.15.0.1061.61USN-6766-3

linux-image-azureUbuntu

Fixed in:5.15.0.1063.72~20.04.1USN-6766-1

Fixed in:6.5.0.1024.25~22.04.1USN-6895-2

linux-image-azure-cvmUbuntu

Fixed in:5.15.0.1063.72~20.04.1USN-6766-1

linux-image-azure-fdeUbuntu

Fixed in:5.15.0.1063.72~20.04.1.41USN-6766-1

Fixed in:6.5.0.1024.25~22.04.1USN-6895-2

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

Fixed in:5.15.0.1063.72.41USN-6766-1

linux-image-azure-lts-22.04Ubuntu

Fixed in:5.15.0.1063.61USN-6766-1

linux-image-gcpUbuntu

Fixed in:5.15.0.1059.67~20.04.1USN-6766-1

Fixed in:6.5.0.1024.26~22.04.1USN-6895-2

Fixed in:6.5.0.1024.26USN-6895-1

linux-image-gcp-lts-22.04Ubuntu

Fixed in:5.15.0.1059.55USN-6766-1

linux-image-genericUbuntu

Fixed in:5.15.0.106.106USN-6766-1

Fixed in:6.5.0.44.44USN-6895-1

linux-image-generic-64kUbuntu

Fixed in:5.15.0.106.106USN-6766-1

Fixed in:6.5.0.44.44USN-6895-1

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

Fixed in:5.15.0.106.116~20.04.1USN-6766-2

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

Fixed in:6.5.0.44.44~22.04.1USN-6900-1

linux-image-generic-hwe-20.04Ubuntu

Fixed in:5.15.0.106.116~20.04.1USN-6766-2

linux-image-generic-hwe-22.04Ubuntu

Fixed in:6.5.0.44.44~22.04.1USN-6900-1

linux-image-generic-lpaeUbuntu

Fixed in:5.15.0.106.106USN-6766-1

Fixed in:6.5.0.44.44USN-6895-1

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

Fixed in:5.15.0.106.116~20.04.1USN-6766-2

linux-image-gkeUbuntu

Fixed in:5.15.0.1058.57USN-6766-1

linux-image-gke-5.15Ubuntu

Fixed in:5.15.0.1058.57USN-6766-1

linux-image-gkeopUbuntu

Fixed in:5.15.0.1044.43USN-6766-1

linux-image-gkeop-5.15Ubuntu

Fixed in:5.15.0.1044.51~20.04.1USN-6766-1

Fixed in:5.15.0.1044.43USN-6766-1

linux-image-ibmUbuntu

Fixed in:5.15.0.1054.57~20.04.1USN-6766-1

Fixed in:5.15.0.1054.50USN-6766-1

linux-image-intelUbuntu

Fixed in:5.15.0.1058.64~20.04.1USN-6828-1

linux-image-intel-iotgUbuntu

Fixed in:5.15.0.1058.64~20.04.1USN-6828-1

Fixed in:5.15.0.1057.57USN-6795-1

linux-image-kvmUbuntu

Fixed in:5.15.0.1058.54USN-6766-1

Fixed in:6.5.0.44.44USN-6895-1

linux-image-lowlatencyUbuntu

Fixed in:5.15.0.106.101USN-6766-1

linux-image-lowlatency-64kUbuntu

Fixed in:5.15.0.106.101USN-6766-1

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

Fixed in:5.15.0.106.116~20.04.1USN-6766-1

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

Fixed in:6.5.0.44.44.1~22.04.1USN-6895-3

linux-image-lowlatency-hwe-20.04Ubuntu

Fixed in:5.15.0.106.116~20.04.1USN-6766-1

linux-image-lowlatency-hwe-22.04Ubuntu

Fixed in:6.5.0.44.44.1~22.04.1USN-6895-3

linux-image-nvidiaUbuntu

Fixed in:5.15.0.1054.54USN-6766-1

linux-image-nvidia-6.5Ubuntu

Fixed in:6.5.0.1023.31USN-6895-1

linux-image-nvidia-64k-6.5Ubuntu

Fixed in:6.5.0.1023.31USN-6895-1

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

Fixed in:6.5.0.1023.31USN-6895-1

linux-image-nvidia-hwe-22.04Ubuntu

Fixed in:6.5.0.1023.31USN-6895-1

linux-image-nvidia-lowlatencyUbuntu

Fixed in:5.15.0.1054.54USN-6766-1

linux-image-oem-20.04Ubuntu

Fixed in:5.15.0.106.116~20.04.1USN-6766-2

linux-image-oem-20.04bUbuntu

Fixed in:5.15.0.106.116~20.04.1USN-6766-2

linux-image-oem-20.04cUbuntu

Fixed in:5.15.0.106.116~20.04.1USN-6766-2

linux-image-oem-20.04dUbuntu

Fixed in:5.15.0.106.116~20.04.1USN-6766-2

linux-image-oem-22.04Ubuntu

Fixed in:6.5.0.1027.29USN-6895-4

linux-image-oem-22.04aUbuntu

Fixed in:6.5.0.1027.29USN-6895-4

linux-image-oem-22.04bUbuntu

Fixed in:6.5.0.1027.29USN-6895-4

linux-image-oem-22.04cUbuntu

Fixed in:6.5.0.1027.29USN-6895-4

linux-image-oem-22.04dUbuntu

Fixed in:6.5.0.1027.29USN-6895-4

linux-image-oracleUbuntu

Fixed in:5.15.0.1059.65~20.04.1USN-6766-1

Fixed in:6.5.0.1026.26~22.04.1USN-6895-3

linux-image-oracle-64kUbuntu

Fixed in:6.5.0.1026.26~22.04.1USN-6895-3

linux-image-oracle-lts-22.04Ubuntu

Fixed in:5.15.0.1059.55USN-6766-1

linux-image-raspiUbuntu

Fixed in:5.15.0.1054.52USN-6766-2

Fixed in:6.5.0.1020.21USN-6895-1

linux-image-raspi-nolpaeUbuntu

Fixed in:5.15.0.1054.52USN-6766-2

Fixed in:6.5.0.1020.21USN-6895-1

linux-image-starfiveUbuntu

Fixed in:6.5.0.1017.18~22.04.1USN-6895-3

linux-image-virtualUbuntu

Fixed in:5.15.0.106.106USN-6766-1

Fixed in:6.5.0.44.44USN-6895-1

linux-image-virtual-hwe-20.04Ubuntu

Fixed in:5.15.0.106.116~20.04.1USN-6766-2

linux-image-virtual-hwe-22.04Ubuntu

Fixed in:6.5.0.44.44~22.04.1USN-6900-1

Fixed in:6.5.0.44.44USN-6895-1

linux-intel-iotgUbuntu

Fixed in:5.15.0-1057.63USN-6795-1

linux-intel-iotg-5.15Ubuntu

Fixed in:5.15.0-1058.64~20.04.1USN-6828-1

linux-kvmUbuntu

Fixed in:5.15.0-1058.63USN-6766-1

linux-lowlatencyUbuntu

Fixed in:5.15.0-106.116USN-6766-1

linux-lowlatency-hwe-5.15Ubuntu

Fixed in:5.15.0-106.116~20.04.1USN-6766-1

linux-lowlatency-hwe-6.5Ubuntu

Fixed in:6.5.0-44.44.1~22.04.1USN-6895-3

linux-nvidiaUbuntu

Fixed in:5.15.0-1054.55USN-6766-1

linux-nvidia-6.5Ubuntu

Fixed in:6.5.0-1023.24USN-6895-1

linux-oem-6.5Ubuntu

Fixed in:6.5.0-1027.28USN-6895-4

linux-oracleUbuntu

Fixed in:5.15.0-1059.65USN-6766-1

linux-oracle-5.15Ubuntu

Fixed in:5.15.0-1059.65~20.04.1USN-6766-1

linux-oracle-6.5Ubuntu

Fixed in:6.5.0-1026.26~22.04.1USN-6895-3

linux-raspiUbuntu

Fixed in:5.15.0-1054.57USN-6766-2

Fixed in:6.5.0-1020.23USN-6895-1

linux-starfive-6.5Ubuntu

Fixed in:6.5.0-1017.18~22.04.1USN-6895-3

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

ConfidentialityNone

IntegrityNone

AvailabilityHigh

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

Exploit Intelligence

0.22%probability of exploitation in 30 days

13thpercentile

Low risk: more likely to be exploited than 13% of all known CVEs.

References

Patch5

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 2025-04-08.