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CVE-2022-48883

7.8 · HIGH

In the Linux kernel, the following vulnerability has been resolved: net/mlx5e: IPoIB, Block PKEY interfaces with less rx queues than parent A user is able to configure an arbitrary number of rx q…

Published Aug 21, 2024CWE-129EPSS 0.23%

Overview

CVE-2022-48883 is a high-severity vulnerability. It was published on August 21, 2024 and has a CVSS 3.1 base score of 7.8 (HIGH).

This vulnerability has a CVSS 3.1 base score of 7.8, rated HIGH. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

Technical description

In the Linux kernel, the following vulnerability has been resolved:

net/mlx5e: IPoIB, Block PKEY interfaces with less rx queues than parent

A user is able to configure an arbitrary number of rx queues when

creating an interface via netlink. This doesn't work for child PKEY

interfaces because the child interface uses the parent receive channels.

Although the child shares the parent's receive channels, the number of

rx queues is important for the channel_stats array: the parent's rx

channel index is used to access the child's channel_stats. So the array

has to be at least as large as the parent's rx queue size for the

counting to work correctly and to prevent out of bound accesses.

This patch checks for the mentioned scenario and returns an error when

trying to create the interface. The error is propagated to the user.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

Frequently asked questions

What is CVE-2022-48883?

CVE-2022-48883 is a high-severity vulnerability. It was published on August 21, 2024 and has a CVSS 3.1 base score of 7.8 (HIGH).

How severe is CVE-2022-48883?

This vulnerability has a CVSS 3.1 base score of 7.8, rated HIGH. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2022-48883?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2022-48883?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2022-48883 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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