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Fencer Vulns
critical 9.8

CVE-2021-37404 json

Heap buffer overflow in libhdfs native library

published 2022-06-13 4 y ago modified 2026-06-17 4 mo ago also GHSA-rmpj-7c96-mrg8 , EUVD-2022-6150

cvss
9.8
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
3.1%
EPSS 3.1% chance of exploitation in 30 days, percentile 87%
public exploits
0
none known

Summary

There is a potential heap buffer overflow in Apache Hadoop libhdfs native code. Opening a file path provided by user without validation may result in a denial of service or arbitrary code execution. Users should upgrade to Apache Hadoop 2.10.2, 3.2.3, 3.3.2 or higher.

Patch / fix

  • maven org.apache.hadoop:hadoop-common 2.10.2, 3.2.3, 3.3.2
  • apache hadoop 2.10.2, 3.2.3, 3.3.2

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2021-37404 updated cvss 9.8

hadoop-hdfs: Heap buffer overflow in Apache Hadoop libhdfs

  • Red Hat JBoss Fuse 6 hadoop-hdfs hadoop-hdfs
    affected: no fix planned “Out of support scope”
  • Red Hat OpenShift Container Platform 4 openshift4/ose-metering-hive, openshift4/ose-metering-hadoop, openshift4/ose-metering-presto
    affected: no fix available “Fix deferred”
  • Red Hat Fuse 7 hadoop-hdfs hadoop-hdfs
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

3.11% chance of exploitation in the next 30 days, higher than 87% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
NVD 3.1 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD 2.0 7.5 AV:N/AC:L/Au:N/C:P/I:P/A:P
GitHub 3.1 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected packages

ecosystem package affected fixed in
maven org.apache.hadoop:hadoop-common
>=3.3.0, <3.3.2
>=3.0.0, <3.2.3
<2.10.2
3.3.2
3.2.3
2.10.2

Affected products

  • Apache Software Foundation Apache Hadoop

Classification

Weakness
  • CWE-787 Out-of-bounds Write
  • CWE-120 Buffer Copy without Checking Size of Input
  • CWE-131 Incorrect Calculation of Buffer Size

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.