CVE-2021-38202

kernel: out-of-bounds read in TRACE_EVENT() in fs/nfsd/trace.h by sending NFS traffic when the trace event framework is being used for nfsd

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Severity

Important

Red Hat Product Security

7.5

CVSS 3.1

Review impact separately from score.

Published · July 6, 2021

Updated · June 28, 2026

Description

A flaw was found in Linux kernel. A remote attacker could cause a denial of service attack by sending NFS traffic when trace event framework is being used for nfsd. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.

Statement

There was no shipped kernel version that was seen affected by this problem.

CVSS score applicability

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.

Mitigation

No mitigation is specified in collected source.

CVSS / CWE

CVSS 3.1 · 7.5
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CWE-125 · Out-of-bounds Read