CVE-2024-5564 Libndp: buffer overflow in route information length field

High 8.1 Published Updated

A local attacker can trigger a buffer overflow in NetworkManager via malformed IPv6 router advertisements, potentially causing denial of service or code execution.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
Not needed
Fix
Available

What is CVE-2024-5564?

CVE-2024-5564 is a high-severity memory corruption vulnerability in Red Hat Enterprise Linux 10, published on 31 May 2024. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

A vulnerability was found in libndp. This flaw allows a local malicious user to cause a buffer overflow in NetworkManager, triggered by sending a malformed IPv6 router advertisement packet. This issue occurred as libndp was not correctly validating the route length information.

Weakness: CWE-120

Which versions are affected by CVE-2024-5564?

Linux distribution packages (40)
libndp AlmaLinux:8All versions1.7-7.el8_10.alma.1
libndp AlmaLinux:9All versions1.8-6.el9_4.alma.1
libndp Red Hat:enterprise_linux:10.0All versions0:1.9-2.el10
libndp-debuginfo Red Hat:enterprise_linux:10.0All versions0:1.9-2.el10
libndp-debugsource Red Hat:enterprise_linux:10.0All versions0:1.9-2.el10
libndp Red Hat:enterprise_linux:8::baseosAll versions0:1.7-7.el8_10
libndp-debuginfo Red Hat:enterprise_linux:8::baseosAll versions0:1.7-7.el8_10
libndp-debugsource Red Hat:enterprise_linux:8::baseosAll versions0:1.7-7.el8_10
libndp Red Hat:enterprise_linux:9::baseosAll versions0:1.8-6.el9_4
libndp-debuginfo Red Hat:enterprise_linux:9::baseosAll versions0:1.8-6.el9_4
libndp-debugsource Red Hat:enterprise_linux:9::baseosAll versions0:1.8-6.el9_4
libndp Red Hat:rhel_aus:8.2::baseosAll versions0:1.7-4.el8_2
libndp-debuginfo Red Hat:rhel_aus:8.2::baseosAll versions0:1.7-4.el8_2
libndp-debugsource Red Hat:rhel_aus:8.2::baseosAll versions0:1.7-4.el8_2
libndp Red Hat:rhel_aus:8.4::baseosAll versions0:1.7-6.el8_4
libndp-debuginfo Red Hat:rhel_aus:8.4::baseosAll versions0:1.7-6.el8_4
libndp-debugsource Red Hat:rhel_aus:8.4::baseosAll versions0:1.7-6.el8_4
libndp Red Hat:rhel_aus:8.6::baseosAll versions0:1.7-7.el8_6
libndp-debuginfo Red Hat:rhel_aus:8.6::baseosAll versions0:1.7-7.el8_6
libndp-debugsource Red Hat:rhel_aus:8.6::baseosAll versions0:1.7-7.el8_6
libndp Red Hat:rhel_e4s:8.4::baseosAll versions0:1.7-6.el8_4
libndp-debuginfo Red Hat:rhel_e4s:8.4::baseosAll versions0:1.7-6.el8_4
libndp-debugsource Red Hat:rhel_e4s:8.4::baseosAll versions0:1.7-6.el8_4
libndp Red Hat:rhel_e4s:8.6::baseosAll versions0:1.7-7.el8_6
libndp-debuginfo Red Hat:rhel_e4s:8.6::baseosAll versions0:1.7-7.el8_6
libndp-debugsource Red Hat:rhel_e4s:8.6::baseosAll versions0:1.7-7.el8_6
libndp Red Hat:rhel_e4s:9.0::baseosAll versions0:1.8-5.el9_0
libndp-debuginfo Red Hat:rhel_e4s:9.0::baseosAll versions0:1.8-5.el9_0
libndp-debugsource Red Hat:rhel_e4s:9.0::baseosAll versions0:1.8-5.el9_0
libndp Red Hat:rhel_els:7All versions0:1.2-10.el7_9
libndp-debuginfo Red Hat:rhel_els:7All versions0:1.2-10.el7_9
libndp-devel Red Hat:rhel_els:7All versions0:1.2-10.el7_9
libndp Red Hat:rhel_eus:8.8::baseosAll versions0:1.7-7.el8_8
libndp-debuginfo Red Hat:rhel_eus:8.8::baseosAll versions0:1.7-7.el8_8
libndp-debugsource Red Hat:rhel_eus:8.8::baseosAll versions0:1.7-7.el8_8
libndp Red Hat:rhel_eus:9.2::baseosAll versions0:1.8-5.el9_2
libndp-debuginfo Red Hat:rhel_eus:9.2::baseosAll versions0:1.8-5.el9_2
libndp-debugsource Red Hat:rhel_eus:9.2::baseosAll versions0:1.8-5.el9_2
libndp Red Hat:rhel_tus:8.4::baseosAll versions0:1.7-6.el8_4
libndp-debuginfo Red Hat:rhel_tus:8.4::baseosAll versions0:1.7-6.el8_4

How do I fix CVE-2024-5564?

Apply the vendor's patch.

Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.

Is CVE-2024-5564 being exploited?

There is no known exploitation of CVE-2024-5564 in the wild and no public exploit code.

Sources

Also known as ALSA-2024:4620, ALSA-2024:4636, AZL-42609, AZL-42625, CLSA-2024-1724259497, CLSA-2025-1745270484 and 27 more.

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