CVE-2005-0449

CVE-2005-0449 describes a denial-of-service vulnerability in the netfilter/iptables module of Linux kernels prior to version 2.6.8.1. Remote attackers can exploit this flaw by sending specially crafted packets, leading to a kernel crash or the bypass of firewall rules due to improper handling by the skb_checksum_help function. This vulnerability carries a CVSS score of 7.1, indicating a high severity, as it can be exploited remotely with medium attack complexity to achieve a complete denial of service. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage regarding this older vulnerability.