CVE & CISA-KEV Catalog

CVE-2021-47018

MEDIUM
5.5
CVSS v3
NVD

Description

In the Linux kernel, the following vulnerability has been resolved: powerpc/64: Fix the definition of the fixmap area At the time being, the fixmap area is defined at the top of the address space or just below KASAN. This definition is not valid for PPC64. For PPC64, use the top of the I/O space. Because of circular dependencies, it is not possible to include asm/fixmap.h in asm/book3s/64/pgtable.h , so define a fixed size AREA at the top of the I/O space for fixmap and ensure during build that the size is big enough.

How to fix

Remediation Available
linuxDebian
Fixed in:5.10.38-1CVE-2021-47018
Fixed in:5.10.38-1CVE-2021-47018
Fixed in:5.10.38-1CVE-2021-47018
Fixed in:5.10.38-1CVE-2021-47018
bpftoolRed Hat / RHEL
Fixed in:0:4.18.0-553.16.1.el8_10RHSA-2024:5101
Fixed in:0:4.18.0-553.16.1.el8_10RHSA-2024:5101
Fixed in:0:4.18.0-553.16.1.el8_10RHSA-2024:5101
Fixed in:0:4.18.0-553.16.1.el8_10RHSA-2024:5101
bpftoolRocky
Fixed in:0:4.18.0-553.16.1.el8_10RHSA-2024:5101
Fixed in:0:4.18.0-553.16.1.el8_10RHSA-2024:5101
Fixed in:0:4.18.0-553.16.1.el8_10RHSA-2024:5101
Fixed in:0:4.18.0-553.16.1.el8_10RHSA-2024:5101
bpftool-debuginfoRed Hat / RHEL
Fixed in:0:4.18.0-553.16.1.el8_10RHSA-2024:5101
Fixed in:0:4.18.0-553.16.1.el8_10RHSA-2024:5101
Fixed in:0:4.18.0-553.16.1.el8_10RHSA-2024:5101
Fixed in:0:4.18.0-553.16.1.el8_10RHSA-2024:5101
bpftool-debuginfoRocky
Fixed in:0:4.18.0-553.16.1.el8_10RHSA-2024:5101
Fixed in:0:4.18.0-553.16.1.el8_10RHSA-2024:5101
Fixed in:0:4.18.0-553.16.1.el8_10RHSA-2024:5101
Fixed in:0:4.18.0-553.16.1.el8_10RHSA-2024:5101
kernelRed Hat / RHEL
Fixed in:0:4.18.0-553.16.1.el8_10RHSA-2024:5101
Fixed in:0:4.18.0-553.16.1.el8_10RHSA-2024:5101
Fixed in:0:4.18.0-553.16.1.el8_10RHSA-2024:5101
Fixed in:0:4.18.0-553.16.1.el8_10RHSA-2024:5101
Fixed in:0:4.18.0-553.16.1.el8_10RHSA-2024:5101
kernelRocky
Fixed in:0:4.18.0-553.16.1.el8_10RHSA-2024:5101
Fixed in:0:4.18.0-553.16.1.el8_10RHSA-2024:5101
Fixed in:0:4.18.0-553.16.1.el8_10RHSA-2024:5101
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Fixed in:0:4.18.0-553.16.1.el8_10RHSA-2024:5101
kernel-abi-stablelistsRocky
Fixed in:0:4.18.0-553.16.1.el8_10RHSA-2024:5101
kernel-abi-stablelistsRed Hat / RHEL
Fixed in:0:4.18.0-553.16.1.el8_10RHSA-2024:5101
kernel-coreRed Hat / RHEL
Fixed in:0:4.18.0-553.16.1.el8_10RHSA-2024:5101
Fixed in:0:4.18.0-553.16.1.el8_10RHSA-2024:5101
Fixed in:0:4.18.0-553.16.1.el8_10RHSA-2024:5101
Fixed in:0:4.18.0-553.16.1.el8_10RHSA-2024:5101
kernel-coreRocky
Fixed in:0:4.18.0-553.16.1.el8_10RHSA-2024:5101
Fixed in:0:4.18.0-553.16.1.el8_10RHSA-2024:5101
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Fixed in:0:4.18.0-553.16.1.el8_10RHSA-2024:5101
kernel-debugRocky
Fixed in:0:4.18.0-553.16.1.el8_10RHSA-2024:5101
Fixed in:0:4.18.0-553.16.1.el8_10RHSA-2024:5101
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Fixed in:0:4.18.0-553.16.1.el8_10RHSA-2024:5101
kernel-debugRed Hat / RHEL
Fixed in:0:4.18.0-553.16.1.el8_10RHSA-2024:5101
Fixed in:0:4.18.0-553.16.1.el8_10RHSA-2024:5101
Fixed in:0:4.18.0-553.16.1.el8_10RHSA-2024:5101
Fixed in:0:4.18.0-553.16.1.el8_10RHSA-2024:5101
kernel-debug-coreRocky
Fixed in:0:4.18.0-553.16.1.el8_10RHSA-2024:5101
Fixed in:0:4.18.0-553.16.1.el8_10RHSA-2024:5101
Fixed in:0:4.18.0-553.16.1.el8_10RHSA-2024:5101
Fixed in:0:4.18.0-553.16.1.el8_10RHSA-2024:5101
kernel-debug-coreRed Hat / RHEL
Fixed in:0:4.18.0-553.16.1.el8_10RHSA-2024:5101
Fixed in:0:4.18.0-553.16.1.el8_10RHSA-2024:5101
Fixed in:0:4.18.0-553.16.1.el8_10RHSA-2024:5101
Fixed in:0:4.18.0-553.16.1.el8_10RHSA-2024:5101
kernel-debug-debuginfoRocky
Fixed in:0:4.18.0-553.16.1.el8_10RHSA-2024:5101
Fixed in:0:4.18.0-553.16.1.el8_10RHSA-2024:5101
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Fixed in:0:4.18.0-553.16.1.el8_10RHSA-2024:5101
kernel-debug-debuginfoRed Hat / RHEL
Fixed in:0:4.18.0-553.16.1.el8_10RHSA-2024:5101
Fixed in:0:4.18.0-553.16.1.el8_10RHSA-2024:5101
Fixed in:0:4.18.0-553.16.1.el8_10RHSA-2024:5101
Fixed in:0:4.18.0-553.16.1.el8_10RHSA-2024:5101
kernel-debug-develRocky
Fixed in:0:4.18.0-553.16.1.el8_10RHSA-2024:5101
Fixed in:0:4.18.0-553.16.1.el8_10RHSA-2024:5101
Fixed in:0:4.18.0-553.16.1.el8_10RHSA-2024:5101
Fixed in:0:4.18.0-553.16.1.el8_10RHSA-2024:5101
kernel-debug-develRed Hat / RHEL
Fixed in:0:4.18.0-553.16.1.el8_10RHSA-2024:5101
Fixed in:0:4.18.0-553.16.1.el8_10RHSA-2024:5101
Fixed in:0:4.18.0-553.16.1.el8_10RHSA-2024:5101
Fixed in:0:4.18.0-553.16.1.el8_10RHSA-2024:5101
kernel-debug-modulesRocky
Fixed in:0:4.18.0-553.16.1.el8_10RHSA-2024:5101
Fixed in:0:4.18.0-553.16.1.el8_10RHSA-2024:5101
Fixed in:0:4.18.0-553.16.1.el8_10RHSA-2024:5101
Fixed in:0:4.18.0-553.16.1.el8_10RHSA-2024:5101
kernel-debug-modulesRed Hat / RHEL
Fixed in:0:4.18.0-553.16.1.el8_10RHSA-2024:5101
Fixed in:0:4.18.0-553.16.1.el8_10RHSA-2024:5101
Fixed in:0:4.18.0-553.16.1.el8_10RHSA-2024:5101
Fixed in:0:4.18.0-553.16.1.el8_10RHSA-2024:5101
kernel-debug-modules-extraRocky
Fixed in:0:4.18.0-553.16.1.el8_10RHSA-2024:5101
Fixed in:0:4.18.0-553.16.1.el8_10RHSA-2024:5101
Fixed in:0:4.18.0-553.16.1.el8_10RHSA-2024:5101
Fixed in:0:4.18.0-553.16.1.el8_10RHSA-2024:5101
kernel-debug-modules-extraRed Hat / RHEL
Fixed in:0:4.18.0-553.16.1.el8_10RHSA-2024:5101
Fixed in:0:4.18.0-553.16.1.el8_10RHSA-2024:5101
Fixed in:0:4.18.0-553.16.1.el8_10RHSA-2024:5101
Fixed in:0:4.18.0-553.16.1.el8_10RHSA-2024:5101
kernel-debuginfoRed Hat / RHEL
Fixed in:0:4.18.0-553.16.1.el8_10RHSA-2024:5101
Fixed in:0:4.18.0-553.16.1.el8_10RHSA-2024:5101
Fixed in:0:4.18.0-553.16.1.el8_10RHSA-2024:5101
Fixed in:0:4.18.0-553.16.1.el8_10RHSA-2024:5101
kernel-debuginfoRocky
Fixed in:0:4.18.0-553.16.1.el8_10RHSA-2024:5101
Fixed in:0:4.18.0-553.16.1.el8_10RHSA-2024:5101
Fixed in:0:4.18.0-553.16.1.el8_10RHSA-2024:5101
Fixed in:0:4.18.0-553.16.1.el8_10RHSA-2024:5101
kernel-debuginfo-common-aarch64Red Hat / RHEL
Fixed in:0:4.18.0-553.16.1.el8_10RHSA-2024:5101
kernel-debuginfo-common-aarch64Rocky
Fixed in:0:4.18.0-553.16.1.el8_10RHSA-2024:5101
kernel-debuginfo-common-ppc64leRocky
Fixed in:0:4.18.0-553.16.1.el8_10RHSA-2024:5101
kernel-debuginfo-common-ppc64leRed Hat / RHEL
Fixed in:0:4.18.0-553.16.1.el8_10RHSA-2024:5101
kernel-debuginfo-common-s390xRocky
Fixed in:0:4.18.0-553.16.1.el8_10RHSA-2024:5101
kernel-debuginfo-common-s390xRed Hat / RHEL
Fixed in:0:4.18.0-553.16.1.el8_10RHSA-2024:5101
kernel-debuginfo-common-x86_64Rocky
Fixed in:0:4.18.0-553.16.1.el8_10RHSA-2024:5101
kernel-debuginfo-common-x86_64Red Hat / RHEL
Fixed in:0:4.18.0-553.16.1.el8_10RHSA-2024:5101
kernel-develRed Hat / RHEL
Fixed in:0:4.18.0-553.16.1.el8_10RHSA-2024:5101
Fixed in:0:4.18.0-553.16.1.el8_10RHSA-2024:5101
Fixed in:0:4.18.0-553.16.1.el8_10RHSA-2024:5101
Fixed in:0:4.18.0-553.16.1.el8_10RHSA-2024:5101
kernel-develRocky
Fixed in:0:4.18.0-553.16.1.el8_10RHSA-2024:5101
Fixed in:0:4.18.0-553.16.1.el8_10RHSA-2024:5101
Fixed in:0:4.18.0-553.16.1.el8_10RHSA-2024:5101
Fixed in:0:4.18.0-553.16.1.el8_10RHSA-2024:5101
kernel-docRed Hat / RHEL
Fixed in:0:4.18.0-553.16.1.el8_10RHSA-2024:5101
kernel-docRocky
Fixed in:0:4.18.0-553.16.1.el8_10RHSA-2024:5101
kernel-modulesRed Hat / RHEL
Fixed in:0:4.18.0-553.16.1.el8_10RHSA-2024:5101
Fixed in:0:4.18.0-553.16.1.el8_10RHSA-2024:5101
Fixed in:0:4.18.0-553.16.1.el8_10RHSA-2024:5101
Fixed in:0:4.18.0-553.16.1.el8_10RHSA-2024:5101
kernel-modulesRocky
Fixed in:0:4.18.0-553.16.1.el8_10RHSA-2024:5101
Fixed in:0:4.18.0-553.16.1.el8_10RHSA-2024:5101
Fixed in:0:4.18.0-553.16.1.el8_10RHSA-2024:5101
Fixed in:0:4.18.0-553.16.1.el8_10RHSA-2024:5101
kernel-modules-extraRed Hat / RHEL
Fixed in:0:4.18.0-553.16.1.el8_10RHSA-2024:5101
Fixed in:0:4.18.0-553.16.1.el8_10RHSA-2024:5101
Fixed in:0:4.18.0-553.16.1.el8_10RHSA-2024:5101
Fixed in:0:4.18.0-553.16.1.el8_10RHSA-2024:5101
kernel-modules-extraRocky
Fixed in:0:4.18.0-553.16.1.el8_10RHSA-2024:5101
Fixed in:0:4.18.0-553.16.1.el8_10RHSA-2024:5101
Fixed in:0:4.18.0-553.16.1.el8_10RHSA-2024:5101
Fixed in:0:4.18.0-553.16.1.el8_10RHSA-2024:5101
kernel-toolsRocky
Fixed in:0:4.18.0-553.16.1.el8_10RHSA-2024:5101
Fixed in:0:4.18.0-553.16.1.el8_10RHSA-2024:5101
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Fixed in:0:4.18.0-553.16.1.el8_10RHSA-2024:5101
kernel-toolsRed Hat / RHEL
Fixed in:0:4.18.0-553.16.1.el8_10RHSA-2024:5101
Fixed in:0:4.18.0-553.16.1.el8_10RHSA-2024:5101
Fixed in:0:4.18.0-553.16.1.el8_10RHSA-2024:5101
Fixed in:0:4.18.0-553.16.1.el8_10RHSA-2024:5101
kernel-tools-debuginfoRed Hat / RHEL
Fixed in:0:4.18.0-553.16.1.el8_10RHSA-2024:5101
Fixed in:0:4.18.0-553.16.1.el8_10RHSA-2024:5101
Fixed in:0:4.18.0-553.16.1.el8_10RHSA-2024:5101
Fixed in:0:4.18.0-553.16.1.el8_10RHSA-2024:5101
kernel-tools-debuginfoRocky
Fixed in:0:4.18.0-553.16.1.el8_10RHSA-2024:5101
Fixed in:0:4.18.0-553.16.1.el8_10RHSA-2024:5101
Fixed in:0:4.18.0-553.16.1.el8_10RHSA-2024:5101
Fixed in:0:4.18.0-553.16.1.el8_10RHSA-2024:5101
kernel-tools-libsRed Hat / RHEL
Fixed in:0:4.18.0-553.16.1.el8_10RHSA-2024:5101
Fixed in:0:4.18.0-553.16.1.el8_10RHSA-2024:5101
Fixed in:0:4.18.0-553.16.1.el8_10RHSA-2024:5101
kernel-tools-libsRocky
Fixed in:0:4.18.0-553.16.1.el8_10RHSA-2024:5101
Fixed in:0:4.18.0-553.16.1.el8_10RHSA-2024:5101
Fixed in:0:4.18.0-553.16.1.el8_10RHSA-2024:5101
kernel-tools-libs-develRed Hat / RHEL
Fixed in:0:4.18.0-553.16.1.el8_10RHSA-2024:5101
Fixed in:0:4.18.0-553.16.1.el8_10RHSA-2024:5101
Fixed in:0:4.18.0-553.16.1.el8_10RHSA-2024:5101
kernel-tools-libs-develRocky
Fixed in:0:4.18.0-553.16.1.el8_10RHSA-2024:5101
Fixed in:0:4.18.0-553.16.1.el8_10RHSA-2024:5101
Fixed in:0:4.18.0-553.16.1.el8_10RHSA-2024:5101
kernel-zfcpdumpRed Hat / RHEL
Fixed in:0:4.18.0-553.16.1.el8_10RHSA-2024:5101
kernel-zfcpdumpRocky
Fixed in:0:4.18.0-553.16.1.el8_10RHSA-2024:5101
kernel-zfcpdump-coreRocky
Fixed in:0:4.18.0-553.16.1.el8_10RHSA-2024:5101
kernel-zfcpdump-coreRed Hat / RHEL
Fixed in:0:4.18.0-553.16.1.el8_10RHSA-2024:5101
kernel-zfcpdump-debuginfoRed Hat / RHEL
Fixed in:0:4.18.0-553.16.1.el8_10RHSA-2024:5101
kernel-zfcpdump-debuginfoRocky
Fixed in:0:4.18.0-553.16.1.el8_10RHSA-2024:5101
kernel-zfcpdump-develRed Hat / RHEL
Fixed in:0:4.18.0-553.16.1.el8_10RHSA-2024:5101
kernel-zfcpdump-develRocky
Fixed in:0:4.18.0-553.16.1.el8_10RHSA-2024:5101
kernel-zfcpdump-modulesRed Hat / RHEL
Fixed in:0:4.18.0-553.16.1.el8_10RHSA-2024:5101
kernel-zfcpdump-modulesRocky
Fixed in:0:4.18.0-553.16.1.el8_10RHSA-2024:5101
kernel-zfcpdump-modules-extraRed Hat / RHEL
Fixed in:0:4.18.0-553.16.1.el8_10RHSA-2024:5101
kernel-zfcpdump-modules-extraRocky
Fixed in:0:4.18.0-553.16.1.el8_10RHSA-2024:5101
perfRocky
Fixed in:0:4.18.0-553.16.1.el8_10RHSA-2024:5101
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Fixed in:0:4.18.0-553.16.1.el8_10RHSA-2024:5101
Fixed in:0:4.18.0-553.16.1.el8_10RHSA-2024:5101
perfRed Hat / RHEL
Fixed in:0:4.18.0-553.16.1.el8_10RHSA-2024:5101
Fixed in:0:4.18.0-553.16.1.el8_10RHSA-2024:5101
Fixed in:0:4.18.0-553.16.1.el8_10RHSA-2024:5101
Fixed in:0:4.18.0-553.16.1.el8_10RHSA-2024:5101
perf-debuginfoRocky
Fixed in:0:4.18.0-553.16.1.el8_10RHSA-2024:5101
Fixed in:0:4.18.0-553.16.1.el8_10RHSA-2024:5101
Fixed in:0:4.18.0-553.16.1.el8_10RHSA-2024:5101
Fixed in:0:4.18.0-553.16.1.el8_10RHSA-2024:5101
perf-debuginfoRed Hat / RHEL
Fixed in:0:4.18.0-553.16.1.el8_10RHSA-2024:5101
Fixed in:0:4.18.0-553.16.1.el8_10RHSA-2024:5101
Fixed in:0:4.18.0-553.16.1.el8_10RHSA-2024:5101
Fixed in:0:4.18.0-553.16.1.el8_10RHSA-2024:5101
python3-perfRocky
Fixed in:0:4.18.0-553.16.1.el8_10RHSA-2024:5101
Fixed in:0:4.18.0-553.16.1.el8_10RHSA-2024:5101
Fixed in:0:4.18.0-553.16.1.el8_10RHSA-2024:5101
Fixed in:0:4.18.0-553.16.1.el8_10RHSA-2024:5101
python3-perfRed Hat / RHEL
Fixed in:0:4.18.0-553.16.1.el8_10RHSA-2024:5101
Fixed in:0:4.18.0-553.16.1.el8_10RHSA-2024:5101
Fixed in:0:4.18.0-553.16.1.el8_10RHSA-2024:5101
Fixed in:0:4.18.0-553.16.1.el8_10RHSA-2024:5101
python3-perf-debuginfoRed Hat / RHEL
Fixed in:0:4.18.0-553.16.1.el8_10RHSA-2024:5101
Fixed in:0:4.18.0-553.16.1.el8_10RHSA-2024:5101
Fixed in:0:4.18.0-553.16.1.el8_10RHSA-2024:5101
Fixed in:0:4.18.0-553.16.1.el8_10RHSA-2024:5101
python3-perf-debuginfoRocky
Fixed in:0:4.18.0-553.16.1.el8_10RHSA-2024:5101
Fixed in:0:4.18.0-553.16.1.el8_10RHSA-2024:5101
Fixed in:0:4.18.0-553.16.1.el8_10RHSA-2024:5101
Fixed in:0:4.18.0-553.16.1.el8_10RHSA-2024:5101

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorLocal
Attack ComplexityLow
Privileges RequiredLow
User InteractionNone
ScopeUnchanged

Impact

ConfidentialityNone
IntegrityNone
AvailabilityHigh

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

Exploit Intelligence

0.24%probability of exploitation in 30 days
15thpercentile

Low risk: more likely to be exploited than 15% of all known CVEs.

References

Embed a live status badge for CVE-2021-47018
CVE-2021-47018 severity badge

Markdown

[![CVE-2021-47018](https://tridentstack.com/cve/badge/CVE-2021-47018.svg)](https://tridentstack.com/cve/CVE-2021-47018)

HTML

<a href="https://tridentstack.com/cve/CVE-2021-47018"><img src="https://tridentstack.com/cve/badge/CVE-2021-47018.svg" alt="CVE-2021-47018"></a>

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2025-01-08.