Go to homepageCyberStrike

Menu

Star on GitHub · 3.2k
Sign inDownload

CVE-2021-47378

9.8 · CRITICAL

In the Linux kernel, the following vulnerability has been resolved: nvme-rdma: destroy cm id before destroy qp to avoid use after free We should always destroy cm_id before destroy qp to avoid to…

Published May 21, 2024CWE-416EPSS 1.18%

Overview

CVE-2021-47378 is a critical-severity vulnerability. It was published on May 21, 2024 and has a CVSS 3.1 base score of 9.8 (CRITICAL).

This vulnerability has a CVSS 3.1 base score of 9.8, rated CRITICAL. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical description

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

nvme-rdma: destroy cm id before destroy qp to avoid use after free

We should always destroy cm_id before destroy qp to avoid to get cma

event after qp was destroyed, which may lead to use after free.

In RDMA connection establishment error flow, don't destroy qp in cm

event handler.Just report cm_error to upper level, qp will be destroy

in nvme_rdma_alloc_queue() after destroy cm id.

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/9817d763dbe15327b9b3ff4404fa6f27f927e744Refgit.kernel.org/stable/c/d268a182c56e8361e19fb781137411643312b994Refgit.kernel.org/stable/c/ecf0dc5a904830c926a64feffd8e01141f89822fRefgit.kernel.org/stable/c/9817d763dbe15327b9b3ff4404fa6f27f927e744Refgit.kernel.org/stable/c/d268a182c56e8361e19fb781137411643312b994Refgit.kernel.org/stable/c/ecf0dc5a904830c926a64feffd8e01141f89822f

How CyberStrike helps

Frequently asked questions

What is CVE-2021-47378?

CVE-2021-47378 is a critical-severity vulnerability. It was published on May 21, 2024 and has a CVSS 3.1 base score of 9.8 (CRITICAL).

How severe is CVE-2021-47378?

This vulnerability has a CVSS 3.1 base score of 9.8, rated CRITICAL. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2021-47378?

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-2021-47378?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2021-47378 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 CRITICAL CVEs from 2021

View all
Browse by year2026202520242023202220212020201920182017201620152014201320122011201020092008200720062005200420032002200120001999