CVE-2004-0626
First published: Tue Jul 06 2004(Updated: )
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.
Credit: cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Conectiva Linux | =10 | |
| Gentoo Linux | ||
| Linux Kernel | =2.6.0 | |
| SUSE Linux | =8.0 | |
| SUSE Linux | =8.1 | |
| SUSE Linux | =8.2 | |
| SUSE Linux | =9.0 | |
| SUSE Linux | =9.1 |
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Reference Links
- http://distro.conectiva.com.br/atualizacoes/?id=a&anuncio=000852
- http://lwn.net/Articles/91964/
- http://www.gentoo.org/security/en/glsa/glsa-200407-12.xml
- http://www.novell.com/linux/security/advisories/2004_20_kernel.html
- http://marc.info/?l=bugtraq&m=108861141304495&w=2
- https://exchange.xforce.ibmcloud.com/vulnerabilities/16554
Frequently Asked Questions
What is the severity of CVE-2004-0626?
CVE-2004-0626 has a medium severity rating as it allows remote attackers to cause a denial of service by exhausting CPU resources.
How do I fix CVE-2004-0626?
To fix CVE-2004-0626, upgrade to a patched version of the Linux kernel or the affected Linux distributions that address this vulnerability.
Which versions of Linux are affected by CVE-2004-0626?
CVE-2004-0626 affects the Linux kernel 2.6 and specific distributions like Conectiva Linux 10, Gentoo Linux, and various versions of SUSE Linux.
What kind of attack does CVE-2004-0626 enable?
CVE-2004-0626 enables a denial of service attack by allowing attackers to trigger an infinite loop in the tcp_find_option function.
Is CVE-2004-0626 a known vulnerability?
Yes, CVE-2004-0626 is a well-documented vulnerability that has been noted since it was disclosed in 2004.
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