<p>Upgrade <code>RHEL:8</code> <code>perf</code> to version 0:4.18.0-372.123.1.el8_6 or higher.<br>This issue was patched in <code>RHSA-2024:6753</code>.</p>

Race Condition Affecting perf package, versions <0:4.18.0-372.123.1.el8_6

Threat Intelligence

0.04% (6^th percentile)

Do your applications use this vulnerable package?

In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.

Test your applications

Snyk ID SNYK-RHEL8-PERF-8059847
published 19 Sep 2024
disclosed 1 May 2024

Report a new vulnerability Found a mistake?

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 RHEL:8 perf to version 0:4.18.0-372.123.1.el8_6 or higher.
This issue was patched in RHSA-2024:6753.

NVD Description

Note: Versions mentioned in the description apply only to the upstream perf package and not the perf package as distributed by RHEL. See How to fix? for RHEL: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 perf package, versions <0:4.18.0-372.123.1.el8_6

Severity

Based on Red Hat Enterprise Linux security rating