<p>Upgrade <code>Centos:8</code> <code>kernel-rt-kvm</code> to version 0:4.18.0-553.16.1.rt7.357.el8_10 or higher.</p>

Race Condition Affecting kernel-rt-kvm package, versions <0:4.18.0-553.16.1.rt7.357.el8_10

Threat Intelligence

0.04% (6^th percentile)

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Snyk ID SNYK-CENTOS8-KERNELRTKVM-6773184
published 2 May 2024
disclosed 1 May 2024

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Introduced: 1 May 2024

CVE-2024-27020 Open this link in a new tab CWE-362 Open this link in a new tab

How to fix?

Upgrade Centos:8 kernel-rt-kvm to version 0:4.18.0-553.16.1.rt7.357.el8_10 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-rt-kvm package and not the kernel-rt-kvm package as distributed by Centos. See How to fix? for Centos:8 relevant fixed versions and status.

In the Linux kernel, the following vulnerability has been resolved:

netfilter: nf_tables: Fix potential data-race in __nft_expr_type_get()

nft_unregister_expr() can concurrent with __nft_expr_type_get(), and there is not any protection when iterate over nf_tables_expressions list in __nft_expr_type_get(). Therefore, there is potential data-race of nf_tables_expressions list entry.

Use list_for_each_entry_rcu() to iterate over nf_tables_expressions list in __nft_expr_type_get(), and use rcu_read_lock() in the caller nft_expr_type_get() to protect the entire type query process.

References

CVSS Scores

version 3.1

Attack Vector (AV)

Local
Attack Complexity (AC)

High
Privileges Required (PR)

Low
User Interaction (UI)

None

Scope (S)

Unchanged

Confidentiality (C)

High
Integrity (I)

High
Availability (A)

High

Race Condition Affecting kernel-rt-kvm package, versions <0:4.18.0-553.16.1.rt7.357.el8_10

Severity

Based on CentOS security rating