CVE-2004-0626
The tcp_find_option function of the netfilter subsystem in Linux kernel 2.6, when using iptables...
The tcp_find_option function of the netfilter subsystem in Linux kernel 2.6, when using iptables and TCP options rules, allows remote attackers to cause a denial of service (CPU consumption by infinite loop) via a large option length that produces a negative integer after a casting operation to the char type.
Exploit likelihood
What each source reports
NVD Score used
The tcp_find_option function of the netfilter subsystem in Linux kernel 2.6, when using iptables and TCP options rules, allows remote attackers to cause a denial of service (CPU consumption by infinite loop) via a large option length that produces a negative integer after a casting operation to the char type.
- Record
CVE-2004-0626- CVSS 2.0
- 5.0 Medium
AV:N/AC:L/Au:N/C:N/I:N/A:P - Updated
- 2026-11-02
CVE List No score
The tcp_find_option function of the netfilter subsystem in Linux kernel 2.6, when using iptables and TCP options rules, allows remote attackers to cause a denial of service (CPU consumption by infinite loop) via a large option length that produces a negative integer after a casting operation to the char type.
- Record
CVE-2004-0626- Updated
- 2026-11-02
EUVDEUVD-2004-0625 No score
The tcp_find_option function of the netfilter subsystem in Linux kernel 2.6, when using iptables and TCP options rules, allows remote attackers to cause a denial of service (CPU consumption by infinite loop) via a large option length that produces a negative integer after a casting operation to the char type.
- Record
EUVD-2004-0625- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-hvfj-m7r2-j689 No score
The tcp_find_option function of the netfilter subsystem in Linux kernel 2.6, when using iptables...
The tcp_find_option function of the netfilter subsystem in Linux kernel 2.6, when using iptables and TCP options rules, allows remote attackers to cause a denial of service (CPU consumption by infinite loop) via a large option length that produces a negative integer after a casting operation to the char type.
- Record
GHSA-hvfj-m7r2-j689- Updated
- 2026-11-02
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2004-0626 is a medium vulnerability (CVSS 5.0) in Conectiva Linux, published July 6, 2004. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 2.76%, the 86th percentile. No source names a fixed version.
References
lwn.net/Articles/91964
gentoo.org/security/en/glsa/glsa-200407-12.xml
marc.info?l=bugtraq&m=108861141304495&w=2
exchange.xforce.ibmcloud.com/vulnerabilities/16554
distro.conectiva.com.br/atualizacoes?id=a&anuncio=000852
novell.com/linux/security/advisories/2004_20_kernel.html
nvd.nist.gov/vuln/detail/CVE-2004-0626
github.com/advisories/GHSA-hvfj-m7r2-j689