What’s Vulnerable › Vulnerabilities

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

• Severity: high (CVSS 8.1 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2024-05-31 · updated 2026-06-17
• Weakness: CWE-120

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.

Affected products

• Red Hat Enterprise Linux 10: all versions — fixed in 0:1.9-2.el10
• Red Hat Enterprise Linux 7 Extended Lifecycle Support: all versions — fixed in 0:1.2-10.el7_9
• Red Hat Enterprise Linux 8: all versions — fixed in 0:1.7-7.el8_10
• Red Hat Enterprise Linux 8.2 Advanced Update Support: all versions — fixed in 0:1.7-4.el8_2
• Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support: all versions — fixed in 0:1.7-6.el8_4
• Red Hat Enterprise Linux 8.4 Telecommunications Update Service: all versions — fixed in 0:1.7-6.el8_4
• Red Hat Enterprise Linux 8.4 Update Services for SAP Solutions: all versions — fixed in 0:1.7-6.el8_4
• Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support: all versions — fixed in 0:1.7-7.el8_6
• Red Hat Enterprise Linux 8.6 Telecommunications Update Service: all versions — fixed in 0:1.7-7.el8_6
• Red Hat Enterprise Linux 8.6 Update Services for SAP Solutions: all versions — fixed in 0:1.7-7.el8_6
• Red Hat Enterprise Linux 8.8 Extended Update Support: all versions — fixed in 0:1.7-7.el8_8
• Red Hat Enterprise Linux 9: all versions — fixed in 0:1.8-6.el9_4
• Red Hat Enterprise Linux 9.0 Update Services for SAP Solutions: all versions — fixed in 0:1.8-5.el9_0
• Red Hat Enterprise Linux 9.2 Extended Update Support: all versions — fixed in 0:1.8-5.el9_2

How to fix

Upgrade to a fixed version: Red Hat Enterprise Linux 10 0:1.9-2.el10; Red Hat Enterprise Linux 7 Extended Lifecycle Support 0:1.2-10.el7_9; Red Hat Enterprise Linux 8 0:1.7-7.el8_10; Red Hat Enterprise Linux 8.2 Advanced Update Support 0:1.7-4.el8_2; Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support 0:1.7-6.el8_4; Red Hat Enterprise Linux 8.4 Telecommunications Update Service 0:1.7-6.el8_4; Red Hat Enterprise Linux 8.4 Update Services for SAP Solutions 0:1.7-6.el8_4; Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support 0:1.7-7.el8_6; Red Hat Enterprise Linux 8.6 Telecommunications Update Service 0:1.7-7.el8_6; Red Hat Enterprise Linux 8.6 Update Services for SAP Solutions 0:1.7-7.el8_6; Red Hat Enterprise Linux 8.8 Extended Update Support 0:1.7-7.el8_8; Red Hat Enterprise Linux 9 0:1.8-6.el9_4. Check the vendor advisory for mitigations.

References

• https://access.redhat.com/errata/RHBA-2025:6631
• https://access.redhat.com/errata/RHSA-2024:4618
• https://access.redhat.com/errata/RHSA-2024:4619
• https://access.redhat.com/errata/RHSA-2024:4620
• https://access.redhat.com/errata/RHSA-2024:4622
• https://access.redhat.com/errata/RHSA-2024:4636
• https://access.redhat.com/errata/RHSA-2024:4640
• https://access.redhat.com/errata/RHSA-2024:4641
• https://access.redhat.com/errata/RHSA-2024:4642
• https://access.redhat.com/errata/RHSA-2024:4643
• https://access.redhat.com/security/cve/CVE-2024-5564
• https://bugzilla.redhat.com/show_bug.cgi?id=2284122

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