CVE-2010-4161: The udp_queue_rcv_skb function in net/ipv4/udp.c in a certain Red Hat build of the Linux kernel 2.6.18 in R...

Security readout for executives and security teams

CVE-2010-4161 is a denial-of-service flaw in a specific Red Hat Enterprise Linux 5 kernel build. UDP traffic reaching a socket with a crafted socket filter could deadlock the kernel and hang the system, causing outage rather than data theft. Exposure is most likely on legacy RHEL 5 systems or downstream products using the affected Red Hat 2.6.18 kernel build. The source bundle does not identify broader Linux distributions as affected. Treat this as a legacy infrastructure outage risk. It is not documented here as actively exploited, but affected systems are old and operationally fragile, so remediation should align with legacy-system reduction and uptime priorities. Mitigation focus: Apply the Red Hat kernel update referenced by RHSA-2011:0004 where applicable.; Review VMware VMSA-2011-0012 if ESX Service Console exposure is relevant.; Prioritize retirement or isolation of unsupported RHEL 5 systems..

Prepared

Jun 28, 2026, 01:17 UTC (UTC+00:00)

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.