CVE-2024-6501 Networkmanager: denial of service

Low 3.1 Published Updated

A malicious user can cause a denial of service in NetworkManager by injecting malformed LLDP packets when debug logs are enabled.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
A user has to click or open something
Fix
Available

What is CVE-2024-6501?

CVE-2024-6501 is a low-severity denial of service vulnerability in Red Hat Enterprise Linux 6, published on 9 Jul 2024. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

Official 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.

Weakness: CWE-400

Which versions are affected by CVE-2024-6501?

Linux distribution packages (40)
NetworkManager AlmaLinux:9All versions1:1.48.10-2.el9_5.alma.1
NetworkManager-adsl AlmaLinux:9All versions1:1.48.10-2.el9_5.alma.1
NetworkManager-bluetooth AlmaLinux:9All versions1:1.48.10-2.el9_5.alma.1
NetworkManager-cloud-setup AlmaLinux:9All versions1:1.48.10-2.el9_5.alma.1
NetworkManager-config-connectivity-redhat AlmaLinux:9All versions1:1.48.10-2.el9_5.alma.1
NetworkManager-config-server AlmaLinux:9All versions1:1.48.10-2.el9_5.alma.1
NetworkManager-dispatcher-routing-rules AlmaLinux:9All versions1:1.48.10-2.el9_5.alma.1
NetworkManager-initscripts-updown AlmaLinux:9All versions1:1.48.10-2.el9_5.alma.1
NetworkManager-libnm AlmaLinux:9All versions1:1.48.10-2.el9_5.alma.1
NetworkManager-libnm-devel AlmaLinux:9All versions1:1.48.10-2.el9_5.alma.1
NetworkManager-ovs AlmaLinux:9All versions1:1.48.10-2.el9_5.alma.1
NetworkManager-ppp AlmaLinux:9All versions1:1.48.10-2.el9_5.alma.1
NetworkManager-team AlmaLinux:9All versions1:1.48.10-2.el9_5.alma.1
NetworkManager-tui AlmaLinux:9All versions1:1.48.10-2.el9_5.alma.1
NetworkManager-wifi AlmaLinux:9All versions1:1.48.10-2.el9_5.alma.1
NetworkManager-wwan AlmaLinux:9All versions1:1.48.10-2.el9_5.alma.1
NetworkManager-adsl-debuginfo Red Hat:enterprise_linux:9::appstreamAll versions1:1.48.10-2.el9_5
NetworkManager-bluetooth-debuginfo Red Hat:enterprise_linux:9::appstreamAll versions1:1.48.10-2.el9_5
NetworkManager-cloud-setup Red Hat:enterprise_linux:9::appstreamAll versions1:1.48.10-2.el9_5
NetworkManager-cloud-setup-debuginfo Red Hat:enterprise_linux:9::appstreamAll versions1:1.48.10-2.el9_5
NetworkManager-config-connectivity-redhat Red Hat:enterprise_linux:9::appstreamAll versions1:1.48.10-2.el9_5
NetworkManager-debuginfo Red Hat:enterprise_linux:9::appstreamAll versions1:1.48.10-2.el9_5
NetworkManager-debugsource Red Hat:enterprise_linux:9::appstreamAll versions1:1.48.10-2.el9_5
NetworkManager-dispatcher-routing-rules Red Hat:enterprise_linux:9::appstreamAll versions1:1.48.10-2.el9_5
NetworkManager-libnm-debuginfo Red Hat:enterprise_linux:9::appstreamAll versions1:1.48.10-2.el9_5
NetworkManager-ovs Red Hat:enterprise_linux:9::appstreamAll versions1:1.48.10-2.el9_5
NetworkManager-ovs-debuginfo Red Hat:enterprise_linux:9::appstreamAll versions1:1.48.10-2.el9_5
NetworkManager-ppp Red Hat:enterprise_linux:9::appstreamAll versions1:1.48.10-2.el9_5
NetworkManager-ppp-debuginfo Red Hat:enterprise_linux:9::appstreamAll versions1:1.48.10-2.el9_5
NetworkManager-team-debuginfo Red Hat:enterprise_linux:9::appstreamAll versions1:1.48.10-2.el9_5
NetworkManager-tui-debuginfo Red Hat:enterprise_linux:9::appstreamAll versions1:1.48.10-2.el9_5
NetworkManager-wifi-debuginfo Red Hat:enterprise_linux:9::appstreamAll versions1:1.48.10-2.el9_5
NetworkManager-wwan-debuginfo Red Hat:enterprise_linux:9::appstreamAll versions1:1.48.10-2.el9_5
NetworkManager Red Hat:enterprise_linux:9::baseosAll versions1:1.48.10-2.el9_5
NetworkManager-adsl Red Hat:enterprise_linux:9::baseosAll versions1:1.48.10-2.el9_5
NetworkManager-adsl-debuginfo Red Hat:enterprise_linux:9::baseosAll versions1:1.48.10-2.el9_5
NetworkManager-bluetooth Red Hat:enterprise_linux:9::baseosAll versions1:1.48.10-2.el9_5
NetworkManager-bluetooth-debuginfo Red Hat:enterprise_linux:9::baseosAll versions1:1.48.10-2.el9_5
NetworkManager-cloud-setup-debuginfo Red Hat:enterprise_linux:9::baseosAll versions1:1.48.10-2.el9_5
NetworkManager-config-server Red Hat:enterprise_linux:9::baseosAll versions1:1.48.10-2.el9_5

How do I fix CVE-2024-6501?

Apply the vendor's patch.

Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.

Is CVE-2024-6501 being exploited?

There is no known exploitation of CVE-2024-6501 in the wild and no public exploit code.

Sources

Also known as ALSA-2024:9317, CLSA-2026-1779533209, DEBIAN-CVE-2024-6501, GHSA-gwgm-rhr4-mf4h, OESA-2024-2291, RHSA-2024:9317 and 1 more.

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