CVE Database›Document archive›CVE-2024-47707

CVE-2024-47707

kernel: ipv6: avoid possible NULL deref in rt6_uncached_list_flush_dev()

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Severity

Moderate

Red Hat Product Security

5.5

CVSS 3.1

Review impact separately from score.

Published · October 21, 2024

Updated · October 29, 2026

Description

A flaw was found in the Linux kernel's IPv6 networking component. A local user could exploit a vulnerability related to a missing check for a null pointer, which can cause the system to attempt to access an invalid memory location. This flaw leads to a system crash, resulting in a Denial of Service (DoS).

CVSS score applicability

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.

Mitigation

To mitigate this issue, disable IPv6 if it is not required for system operation. This can be achieved by adding ipv6.disable=1 to the kernel boot parameters. A system reboot is required for this change to take effect. Disabling IPv6 may impact network functionality if IPv6 is in use.

CVSS / CWE

CVSS 3.1 · 5.5
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

CWE-476 · NULL Pointer Dereference