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CVE-2023-53034

7.1 · HIGH

In the Linux kernel, the following vulnerability has been resolved: ntb_hw_switchtec: Fix shift-out-of-bounds in switchtec_ntb_mw_set_trans There is a kernel API ntb_mw_clear_trans() would pass 0…

Published Apr 16, 2025CWE-125EPSS 0.29%

Overview

CVE-2023-53034 is a high-severity vulnerability. It was published on April 16, 2025 and has a CVSS 3.1 base score of 7.1 (HIGH).

This vulnerability has a CVSS 3.1 base score of 7.1, rated HIGH. It requires local or adjacent network access to exploit. No authentication or special privileges are required for exploitation.

Technical description

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

ntb_hw_switchtec: Fix shift-out-of-bounds in switchtec_ntb_mw_set_trans

There is a kernel API ntb_mw_clear_trans() would pass 0 to both addr and

size. This would make xlate_pos negative.

[ 23.734156] switchtec switchtec0: MW 0: part 0 addr 0x0000000000000000 size 0x0000000000000000

[ 23.734158] ================================================================================

[ 23.734172] UBSAN: shift-out-of-bounds in drivers/ntb/hw/mscc/ntb_hw_switchtec.c:293:7

[ 23.734418] shift exponent -1 is negative

Ensuring xlate_pos is a positive or zero before BIT.

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.

References

Refgit.kernel.org/stable/c/0df2e03e4620548b41891b4e0d1bd9d2e0d8a39aRefgit.kernel.org/stable/c/2429bdf26a0f3950fdd996861e9c1a3873af1dbeRefgit.kernel.org/stable/c/36d32cfb00d42e865396424bb5d340fc0a28870dRefgit.kernel.org/stable/c/5b6857bb3bfb0dae17fab1e42c1e82c204a508b1Refgit.kernel.org/stable/c/7ed22f8d8be26225a78cf5e85b2036421a6bf2d5Refgit.kernel.org/stable/c/c61a3f2df162ba424be0141649a9ef5f28eaccc1Refgit.kernel.org/stable/c/cb153bdc1812a3375639ed6ca5f147eaefb65349Refgit.kernel.org/stable/c/de203da734fae00e75be50220ba5391e7beecdf9Refgit.kernel.org/stable/c/f56951f211f181410a383d305e8d370993e45294Reflists.debian.org/debian-lts-announce/2025/05/msg00030.html

How CyberStrike helps

Frequently asked questions

What is CVE-2023-53034?

CVE-2023-53034 is a high-severity vulnerability. It was published on April 16, 2025 and has a CVSS 3.1 base score of 7.1 (HIGH).

How severe is CVE-2023-53034?

This vulnerability has a CVSS 3.1 base score of 7.1, rated HIGH. It requires local or adjacent network access to exploit. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2023-53034?

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-2023-53034?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2023-53034 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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