What is CVE-2023-6915?

CVE-2023-6915 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10, classified as a NULL Pointer Dereference flaw (CWE-476). CVE-2023-6915 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2023-6915?

CVE-2023-6915 has a CVSS score of 5.5 out of 10, rated Medium severity. The vector string is CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.

Is there a patch available for CVE-2023-6915?

No patch is currently available for CVE-2023-6915. Monitor the NIST NVD and your Linux distribution's security advisories for updates.

Is CVE-2023-6915 actively exploited?

CVE-2023-6915 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-2023-6915

Medium

A Null pointer dereference problem was found in ida_free in lib/idr.c in the Linux Kernel. This issue may allow an attacker using this library to cause a denial of service problem due to a missing check at a function return.

Package Linux Kernel

Published 2024-01-15

Last modified 2024-11-21

CVSS version 3.1

Patch available

Awaiting data

CVSS 3.1 score

5.5

out of 10

Medium

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

Low

Integrity

None

Availability

High

Vector string

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

Weakness type

CWE-476

CVE-2023-6915 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-2023-6915 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/errata/RHSA-2024:2394
Red Hat
https://access.redhat.com/errata/RHSA-2024:2950
Red Hat
https://access.redhat.com/errata/RHSA-2024:3138
Red Hat
https://access.redhat.com/security/cve/CVE-2023-6915

Third Party Advisory
Red Hat
https://bugzilla.redhat.com/show_bug.cgi?id=2254982

Issue Tracking
Debian Security
https://lists.debian.org/debian-lts-announce/2024/06/msg00016.html
Kernel patch commit
https://github.com/torvalds/linux/commit/af73483f4e8b6f5c68c9aa63257bdd929a9c194a
Patch

Details

CVE ID CVE-2023-6915

Severity Medium

CVSS score 5.5 / 10

CVSS version 3.1

Published 2024-01-15

Modified 2024-11-21

KEV No

Patch Awaiting data

Package linux

Frequently asked questions

What is CVE-2023-6915?

CVE-2023-6915 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10 , classified as a NULL Pointer Dereference flaw (CWE-476) . CVE-2023-6915 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2023-6915?

CVE-2023-6915 has a CVSS score of 5.5 out of 10, rated Medium severity (CVSS 3.1). The vector string is CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.
Is there a patch available for CVE-2023-6915?

No patch is currently available for CVE-2023-6915. Monitor the NIST NVD and your Linux distribution's security advisories for updates.
Is CVE-2023-6915 actively exploited?

No — CVE-2023-6915 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 →