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Fencer Vulns
medium 4.7

CVE-2022-47022 json

An issue was discovered in open-mpi hwloc 2.1.0 allows attackers to cause a denial of service or...

published 2023-08-22 3 y ago modified 2026-07-23 3 mo ago also EUVD-2022-49800 , JLSEC-2025-176

cvss
4.7
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
0.3%
EPSS 0.3% chance of exploitation in 30 days, percentile 24%
public exploits
0
none known

Summary

An issue was discovered in open-mpi hwloc 2.1.0 allows attackers to cause a denial of service or other unspecified impacts via glibc-cpuset in topology-linux.c.

Patch / fix

  • julia Hwloc_jll 2.9.3+0
  • hwloc Debian 14, Debian 13 2.9.3-1

debian advisories DEBIAN-CVE-2022-47022

  • hwloc CBL-Mariner 2.0 2.5.0-2
  • openmpi CBL-Mariner 2.0 4.1.4-12
  • hwloc Azure Linux 3.0 2.9.2-2
  • openmpi Azure Linux 3.0 4.1.7-2

azure linux advisories AZL-28092AZL-28595AZL-34800AZL-35071

Azure Linux vulnerability data, Copyright (c) Microsoft Corporation, from https://github.com/microsoft/AzureLinuxVulnerabilityData via OSV, under the MIT licence; changed: normalised to fixed package versions per release. MIT

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-2022-47022 updated cvss 5.1

hwloc: null pointer dereference bug in open-mpi hwloc

  • Red Hat Enterprise Linux 8 hwloc, hwloc-gui, hwloc-libs, compat-hwloc1, hwloc-plugins Red Hat Enterprise Linux 9 hwloc, hwloc-gui, hwloc-libs
    affected: no fix available

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

CISA SSVC

Exploitation
Proof of concept is public
Automatable
no
Technical impact
partial
Assessed
2 y ago

Exploit prediction

0.31% chance of exploitation in the next 30 days, higher than 24% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • github.com https://github.com/open-mpi/hwloc/issues/544 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 3.1 4.7 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
OSV 3.1 4.7 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H

Affected packages

ecosystem package affected fixed in
julia Hwloc_jll
<2.9.3+0
2.9.3+0

Classification

Weakness

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.