What is CVE-2023-32248?

CVE-2023-32248 is a High severity Linux kernel vulnerability with a CVSS score of 7.5 out of 10, classified as a NULL Pointer Dereference flaw (CWE-476). CVE-2023-32248 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

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

CVE-2023-32248 has a CVSS score of 7.5 out of 10, rated High severity. The vector string is CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

Is there a patch available for CVE-2023-32248?

No patch is currently available for CVE-2023-32248. Monitor the NIST NVD and your Linux distribution's security advisories for updates.

Is CVE-2023-32248 actively exploited?

CVE-2023-32248 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is NULL Pointer Dereference (CWE-476)?

The product dereferences a pointer that it expects to be valid but is NULL, typically causing a crash. See MITRE CWE for full details: https://cwe.mitre.org/data/definitions/476.html

CVE-2023-32248

High

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.

Package Linux Kernel

Published 2023-07-24

Last modified 2024-11-21

CVSS version 3.1

Patch available

Awaiting data

CVSS 3.1 score

7.5

out of 10

High

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

Low

Integrity

None

Availability

High

Vector string

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

Weakness type

CWE-476

CVE-2023-32248 is a NULL Pointer Dereference vulnerability

What is NULL Pointer Dereference?

The product dereferences a pointer that it expects to be valid but is NULL, typically causing a crash. Learn more on MITRE CWE

References

The following references provide additional information about CVE-2023-32248 including vendor advisories, patch commits, exploit details, and third-party analysis. Links are sourced from the NIST NVD database.

Red Hat
https://access.redhat.com/security/cve/CVE-2023-32248

Third Party Advisory
Security
https://security.netapp.com/advisory/ntap-20230915-0006/

Third Party Advisory
Kernel patch commit
https://bugzilla.redhat.com/show_bug.cgi?id=2219818
Patch
Kernel patch commit
https://www.zerodayinitiative.com/advisories/ZDI-CAN-20479/
Patch

Details

CVE ID CVE-2023-32248

Severity High

CVSS score 7.5 / 10

CVSS version 3.1

Published 2023-07-24

Modified 2024-11-21

KEV No

Patch Awaiting data

Package linux

Frequently asked questions

What is CVE-2023-32248?

CVE-2023-32248 is a High severity Linux kernel vulnerability with a CVSS score of 7.5 out of 10 , classified as a NULL Pointer Dereference flaw (CWE-476) . CVE-2023-32248 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2023-32248?

CVE-2023-32248 has a CVSS score of 7.5 out of 10, rated High severity (CVSS 3.1). The vector string is CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
Is there a patch available for CVE-2023-32248?

No patch is currently available for CVE-2023-32248. Monitor the NIST NVD and your Linux distribution's security advisories for updates.
Is CVE-2023-32248 actively exploited?

No — CVE-2023-32248 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.
What is NULL Pointer Dereference (CWE-476)?

The product dereferences a pointer that it expects to be valid but is NULL, typically causing a crash. View CWE-476 on MITRE CWE →