CVE-2023-3772

Medium

A flaw was found in the Linux kernel’s IP framework for transforming packets (XFRM subsystem). This issue may allow a malicious user with CAP_NET_ADMIN privileges to directly dereference a NULL pointer in xfrm_update_ae_params(), leading to a possible kernel crash and denial of service.

Package Linux Kernel
Published 2023-07-25
Last modified 2024-11-21
CVSS version 3.1
Patch available
Awaiting data

CVSS 3.1 score

4.4

out of 10
Medium
Attack Vector
Local
Attack Complexity
Low
Privileges Required
High
User Interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
None
Availability
High
Vector string
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H

Weakness type

CWE-476

CVE-2023-3772 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-2023-3772 including vendor advisories, patch commits, exploit details, and third-party analysis. Links are sourced from the NIST NVD database.

Frequently asked questions

  • What is CVE-2023-3772?

    CVE-2023-3772 is a Medium severity Linux kernel vulnerability with a CVSS score of 4.4 out of 10 , classified as a NULL Pointer Dereference flaw (CWE-476) . CVE-2023-3772 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

  • What is the CVSS score for CVE-2023-3772?

    CVE-2023-3772 has a CVSS score of 4.4 out of 10, rated Medium severity (CVSS 3.1). The vector string is CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H .

  • Is there a patch available for CVE-2023-3772?

    No patch is currently available for CVE-2023-3772. Monitor the NIST NVD and your Linux distribution's security advisories for updates.

  • Is CVE-2023-3772 actively exploited?

    No — CVE-2023-3772 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 →

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