What is CVE-2023-46862?

CVE-2023-46862 is a Medium severity Linux kernel vulnerability with a CVSS score of 4.7 out of 10, classified as a NULL Pointer Dereference flaw (CWE-476). CVE-2023-46862 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2023-46862?

CVE-2023-46862 has a CVSS score of 4.7 out of 10, rated Medium severity. The vector string is CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H.

Is there a patch available for CVE-2023-46862?

No patch is currently available for CVE-2023-46862. Monitor the NIST NVD and your Linux distribution's security advisories for updates.

Is CVE-2023-46862 actively exploited?

CVE-2023-46862 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-2023-46862

Medium

An issue was discovered in the Linux kernel through 6.5.9. During a race with SQ thread exit, an io_uring/fdinfo.c io_uring_show_fdinfo NULL pointer dereference can occur.

Package Linux Kernel

Published 2023-10-29

Last modified 2024-11-21

CVSS version 3.1

Patch available

Awaiting data

CVSS 3.1 score

4.7

out of 10

Medium

Attack Vector

Local

Attack Complexity

High

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

None

Availability

High

Vector string

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

Weakness type

CWE-476

CVE-2023-46862 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-2023-46862 including vendor advisories, patch commits, exploit details, and third-party analysis. Links are sourced from the NIST NVD database.

Debian Security
https://lists.debian.org/debian-lts-announce/2024/01/msg00005.html
Kernel patch commit
https://bugzilla.kernel.org/show_bug.cgi?id=218032#c4
Patch
Kernel patch commit
https://github.com/torvalds/linux/commit/7644b1a1c9a7ae8ab99175989bfc8676055edb46
Patch

Details

CVE ID CVE-2023-46862

Severity Medium

CVSS score 4.7 / 10

CVSS version 3.1

Published 2023-10-29

Modified 2024-11-21

KEV No

Patch Awaiting data

Package linux

Frequently asked questions

What is CVE-2023-46862?

CVE-2023-46862 is a Medium severity Linux kernel vulnerability with a CVSS score of 4.7 out of 10 , classified as a NULL Pointer Dereference flaw (CWE-476) . CVE-2023-46862 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2023-46862?

CVE-2023-46862 has a CVSS score of 4.7 out of 10, rated Medium severity (CVSS 3.1). The vector string is CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H.
Is there a patch available for CVE-2023-46862?

No patch is currently available for CVE-2023-46862. Monitor the NIST NVD and your Linux distribution's security advisories for updates.
Is CVE-2023-46862 actively exploited?

No — CVE-2023-46862 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 →