CVE-2024-50256
kernel: netfilter: nf_reject_ipv6: fix potential crash in nf_send_reset6()
Severity
ModerateRed Hat Product Security
CVSS 3.1
Review impact separately from score.
Published · November 9, 2024
Updated · October 29, 2026
Description
A flaw was found in the Linux kernel's netfilter component, specifically within the nf_reject_ipv6 module. This vulnerability arises when the system attempts to process an IPv6 packet where the network device's header length is unexpectedly zero, leading to a kernel crash. A remote attacker could exploit this flaw by sending a specially crafted IPv6 packet, resulting in a Denial of Service (DoS) on the affected system.
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
Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.
CVSS / CWE
CVSS 3.1 · 5.5CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CWE-476 · NULL Pointer Dereference