CVE-2004-0626

Severity: medium (CVSS 5.0 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 2.8% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2004-12-06 · updated 2026-06-16

Description

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.

Affected products

Conectiva Linux: 10
gentoo Linux: all versions
Linux kernel: 2.6.0
Suse Linux: 8.0, 8.1, 8.2, 9.0, 9.1

References

http://distro.conectiva.com.br/atualizacoes/?id=a&anuncio=000852
http://lwn.net/Articles/91964/
http://marc.info/?l=bugtraq&m=108861141304495&w=2
http://www.gentoo.org/security/en/glsa/glsa-200407-12.xml
http://www.novell.com/linux/security/advisories/2004_20_kernel.html
https://exchange.xforce.ibmcloud.com/vulnerabilities/16554
http://distro.conectiva.com.br/atualizacoes/?id=a&anuncio=000852
http://lwn.net/Articles/91964/
http://marc.info/?l=bugtraq&m=108861141304495&w=2
http://www.gentoo.org/security/en/glsa/glsa-200407-12.xml
http://www.novell.com/linux/security/advisories/2004_20_kernel.html
https://exchange.xforce.ibmcloud.com/vulnerabilities/16554

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