What is CVE-2023-52462?

CVE-2023-52462 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-2023-52462 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2023-52462?

CVE-2023-52462 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:H/A:N.

Is there a patch available for CVE-2023-52462?

No patch is currently available for CVE-2023-52462. Monitor the NIST NVD and your Linux distribution's security advisories for updates.

Is CVE-2023-52462 actively exploited?

CVE-2023-52462 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-2023-52462

Medium

In the Linux kernel, the following vulnerability has been resolved: bpf: fix check for attempt to corrupt spilled pointer When register is spilled onto a stack as a 1/2/4-byte register, we set slot_type[BPF_REG_SIZE - 1] (plus potentially few more below it, depending on actual spill size). So to check if some stack slot has spilled register we need to consult slot_type[7], not slot_type[0]. To avoid the need to remember and double-check this in the future, just use is_spilled_reg() helper.

Package Linux Kernel

Published 2024-02-23

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

High

Availability

None

Vector string

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

Weakness type

CWE-476

CVE-2023-52462 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-2023-52462 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/2024/06/msg00016.html
Kernel patch commit
https://git.kernel.org/stable/c/2757f17972d87773b3677777f5682510f13c66ef
Patch
Kernel patch commit
https://git.kernel.org/stable/c/40617d45ea05535105e202a8a819e388a2b1f036
Patch
Kernel patch commit
https://git.kernel.org/stable/c/67e6707f07354ed1acb4e65552e97c60cf9d69cf
Patch

6 patch commits total View all on NVD

Details

CVE ID CVE-2023-52462

Severity Medium

CVSS score 5.5 / 10

CVSS version 3.1

Published 2024-02-23

Modified 2024-11-21

KEV No

Patch Awaiting data

Package linux

Frequently asked questions

What is CVE-2023-52462?

CVE-2023-52462 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-2023-52462 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2023-52462?

CVE-2023-52462 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:H/A:N.
Is there a patch available for CVE-2023-52462?

No patch is currently available for CVE-2023-52462. Monitor the NIST NVD and your Linux distribution's security advisories for updates.
Is CVE-2023-52462 actively exploited?

No — CVE-2023-52462 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 →