CVE-2021-47378
NVMERDMA Use After Free Information Disclosure
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.
INFO
Published Date :
May 21, 2024, 3:15 p.m.
Last Modified :
April 2, 2025, 2:52 p.m.
Source :
416baaa9-dc9f-4396-8d5f-8c081fb06d67
Remotely Exploitable :
Yes !
Impact Score :
5.9
Exploitability Score :
3.9
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2021-47378.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
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The following list is the news that have been mention
CVE-2021-47378 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2021-47378 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
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Initial Analysis by [email protected]
Apr. 02, 2025
Action Type Old Value New Value Added CPE Configuration OR *cpe:2.3:o:linux:linux_kernel:5.15:rc1:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.11 up to (excluding) 5.14.9 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions up to (excluding) 5.10.70 Added Reference Type CVE: https://git.kernel.org/stable/c/9817d763dbe15327b9b3ff4404fa6f27f927e744 Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/9817d763dbe15327b9b3ff4404fa6f27f927e744 Types: Patch Added Reference Type CVE: https://git.kernel.org/stable/c/d268a182c56e8361e19fb781137411643312b994 Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/d268a182c56e8361e19fb781137411643312b994 Types: Patch Added Reference Type CVE: https://git.kernel.org/stable/c/ecf0dc5a904830c926a64feffd8e01141f89822f Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/ecf0dc5a904830c926a64feffd8e01141f89822f Types: Patch -
CVE Modified by af854a3a-2127-422b-91ae-364da2661108
Nov. 21, 2024
Action Type Old Value New Value Added Reference https://git.kernel.org/stable/c/9817d763dbe15327b9b3ff4404fa6f27f927e744 Added Reference https://git.kernel.org/stable/c/d268a182c56e8361e19fb781137411643312b994 Added Reference https://git.kernel.org/stable/c/ecf0dc5a904830c926a64feffd8e01141f89822f -
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Jul. 03, 2024
Action Type Old Value New Value Added CWE CISA-ADP CWE-416 Added CVSS V3.1 CISA-ADP AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H -
CVE Modified by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
May. 28, 2024
Action Type Old Value New Value -
CVE Received by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
May. 21, 2024
Action Type Old Value New Value Added 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. Added Reference kernel.org https://git.kernel.org/stable/c/ecf0dc5a904830c926a64feffd8e01141f89822f [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/d268a182c56e8361e19fb781137411643312b994 [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/9817d763dbe15327b9b3ff4404fa6f27f927e744 [No types assigned]
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2021-47378 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2021-47378
weaknesses.