Go to homepageCyberStrike

Menu

Star on GitHub · 3.2k
Sign inDownload

CVE-2023-52980

7.8 · HIGH

In the Linux kernel, the following vulnerability has been resolved: block: ublk: extending queue_size to fix overflow When validating drafted SPDK ublk target, in a case that assigning large queu…

Published Mar 27, 2025CWE-787EPSS 0.24%

Overview

CVE-2023-52980 is a high-severity vulnerability. It was published on March 27, 2025 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:

block: ublk: extending queue_size to fix overflow

When validating drafted SPDK ublk target, in a case that

assigning large queue depth to multiqueue ublk device,

ublk target would run into a weird incorrect state. During

rounds of review and debug, An overflow bug was found

in ublk driver.

In ublk_cmd.h, UBLK_MAX_QUEUE_DEPTH is 4096 which means

each ublk queue depth can be set as large as 4096. But

when setting qd for a ublk device,

sizeof(struct ublk_queue) + depth * sizeof(struct ublk_io)

will be larger than 65535 if qd is larger than 2728.

Then queue_size is overflowed, and ublk_get_queue()

references a wrong pointer position. The wrong content of

ublk_queue elements will lead to out-of-bounds memory

access.

Extend queue_size in ublk_device as "unsigned int".

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/29baef789c838bd5c02f50c88adbbc6b955aaf61Refgit.kernel.org/stable/c/ee1e3fe4b4579f856997190a00ea4db0307b4332

How CyberStrike helps

Frequently asked questions

What is CVE-2023-52980?

CVE-2023-52980 is a high-severity vulnerability. It was published on March 27, 2025 and has a CVSS 3.1 base score of 7.8 (HIGH).

How severe is CVE-2023-52980?

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-2023-52980?

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-2023-52980?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2023-52980 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.

Related HIGH CVEs from 2023

View all
Browse by year2026202520242023202220212020201920182017201620152014201320122011201020092008200720062005200420032002200120001999