CVE-2004-0626

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.

5.0

CVSS

Severity: Medium

CVSS 2.0 •

EPSS 1.74% Top 20%

Vendor Advisory lwn.net Vendor Advisory gentoo.org Vendor Advisory com.br Vendor Advisory novell.com

Affected: n/a n/a

References

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

Frequently Asked Questions

What is the severity of CVE-2004-0626?: CVE-2004-0626 has been scored as a medium severity vulnerability.
How to fix CVE-2004-0626?: To fix CVE-2004-0626, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2004-0626 being actively exploited in the wild?: It is possible that CVE-2004-0626 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~2% probability that this vulnerability will be exploited by malicious actors in the next 30 days.

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