What’s Vulnerable › Vulnerabilities

CVE-2004-0816

• Severity: high (CVSS 7.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 11.5% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2004-12-23 · updated 2026-06-16
• Weakness: CWE-191

Description

Integer underflow in the firewall logging rules for iptables in Linux before 2.6.8 allows remote attackers to cause a denial of service (application crash) via a malformed IP packet.

Affected products

• Linux kernel: before 2.6.8 — fixed in 2.6.8

How to fix

Upgrade to a fixed version: Linux kernel 2.6.8. Check the vendor advisory for mitigations.

References

• http://secunia.com/advisories/11202/
• http://www.mandriva.com/security/advisories?name=MDKSA-2005:022
• http://www.novell.com/linux/security/advisories/2004_37_kernel.html
• http://www.securityfocus.com/bid/11488
• https://exchange.xforce.ibmcloud.com/vulnerabilities/17800
• http://secunia.com/advisories/11202/
• http://www.mandriva.com/security/advisories?name=MDKSA-2005:022
• http://www.novell.com/linux/security/advisories/2004_37_kernel.html
• http://www.securityfocus.com/bid/11488
• https://exchange.xforce.ibmcloud.com/vulnerabilities/17800

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