CVE-2024-6501: Networkmanager: denial of service

Severity: low (CVSS 3.1 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.4% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2024-07-09 · updated 2026-06-17
Weakness: CWE-400

Description

A flaw was found in NetworkManager. When a system running NetworkManager with DEBUG logs enabled and an interface eth1 configured with LLDP enabled, a malicious user could inject a malformed LLDP packet. NetworkManager would crash, leading to a denial of service.

Affected products

Red Hat OpenShift Container Platform 4.18: all versions
Red Hat Enterprise Linux 8: all versions
Red Hat Enterprise Linux 9: all versions — fixed in 1:1.48.10-2.el9_5

How to fix

Upgrade to a fixed version: Red Hat Enterprise Linux 9 1:1.48.10-2.el9_5. Check the vendor advisory for mitigations.

References

https://access.redhat.com/errata/RHSA-2024:9317
https://access.redhat.com/security/cve/CVE-2024-6501
https://bugzilla.redhat.com/show_bug.cgi?id=2295734
https://access.redhat.com/security/cve/CVE-2024-6501
https://bugzilla.redhat.com/show_bug.cgi?id=2295734

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