What is CVE-2024-42142?

CVE-2024-42142 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10. CVE-2024-42142 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2024-42142?

CVE-2024-42142 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-2024-42142?

No patch is currently available for CVE-2024-42142. Monitor the NIST NVD and your Linux distribution's security advisories for updates.

Is CVE-2024-42142 actively exploited?

CVE-2024-42142 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

CVE-2024-42142

Medium

In the Linux kernel, the following vulnerability has been resolved: net/mlx5: E-switch, Create ingress ACL when needed Currently, ingress acl is used for three features. It is created only when vport metadata match and prio tag are enabled. But active-backup lag mode also uses it. It is independent of vport metadata match and prio tag. And vport metadata match can be disabled using the following devlink command: # devlink dev param set pci/0000:08:00.0 name esw_port_metadata \ value false cmode runtime If ingress acl is not created, will hit panic when creating drop rule for active-backup lag mode. If always create it, there will be about 5% performance degradation. Fix it by creating ingress acl when needed. If esw_port_metadata is true, ingress acl exists, then create drop rule using existing ingress acl. If esw_port_metadata is false, create ingress acl and then create drop rule.

Package Linux Kernel

Published 2024-07-30

Last modified 2025-11-03

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

References

The following references provide additional information about CVE-2024-42142 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/2025/01/msg00001.html
Kernel patch commit
https://git.kernel.org/stable/c/3e3551f8702978cd2221d2614ca6d6727e785324
Patch
Kernel patch commit
https://git.kernel.org/stable/c/83bc1a129f7fd0d7d05036ceb7ee69102624e320
Patch
Kernel patch commit
https://git.kernel.org/stable/c/b20c2fb45470d0c7a603613c9cfa5d45720e17f2
Patch

4 patch commits total View all on NVD

Details

CVE ID CVE-2024-42142

Severity Medium

CVSS score 5.5 / 10

CVSS version 3.1

Published 2024-07-30

Modified 2025-11-03

KEV No

Patch Awaiting data

Package linux

Frequently asked questions

What is CVE-2024-42142?

CVE-2024-42142 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10 . CVE-2024-42142 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2024-42142?

CVE-2024-42142 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-2024-42142?

No patch is currently available for CVE-2024-42142. Monitor the NIST NVD and your Linux distribution's security advisories for updates.
Is CVE-2024-42142 actively exploited?

No — CVE-2024-42142 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.