Improper input validation in Linux kernel



Risk Low
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2005-0449
CWE-ID CWE-20
Exploitation vector Network
Public exploit N/A
Vulnerable software
 Linux kernel
Operating systems & Components / Operating system

Vendor Linux Foundation

Security Bulletin

This security bulletin contains one low risk vulnerability.

1) Improper input validation

EUVDB-ID: #VU95769

Risk: Low

CVSSv4.0: 6.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2005-0449

CWE-ID: CWE-20 - Improper input validation

Exploit availability: No

Description

The vulnerability allows a remote non-authenticated attacker to perform a denial of service (DoS) attack.

The netfilter/iptables module in Linux before 2.6.8.1 allows remote attackers to cause a denial of service (kernel crash) or bypass firewall rules via crafted packets, which are not properly handled by the skb_checksum_help function.

Mitigation

Install update from vendor's repository.

Vulnerable software versions

Linux kernel: All versions

CPE2.3 External links

https:ftp://patches.sgi.com/support/free/security/advisories/20060402-01-U
https://distro.conectiva.com.br/atualizacoes/?id=a&anuncio=000945
https://oss.sgi.com/archives/netdev/2005-01/msg01036.html
https://secunia.com/advisories/19369
https://secunia.com/advisories/19374
https://secunia.com/advisories/19607
https://www.debian.org/security/2006/dsa-1017
https://www.debian.org/security/2006/dsa-1018
https://www.mandriva.com/security/advisories?name=MDKSA-2005:218
https://www.novell.com/linux/security/advisories/2005_18_kernel.html
https://www.redhat.com/support/errata/RHSA-2005-283.html
https://www.redhat.com/support/errata/RHSA-2005-284.html
https://www.redhat.com/support/errata/RHSA-2005-293.html
https://www.redhat.com/support/errata/RHSA-2005-366.html
https://www.securityfocus.com/bid/12598
https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=152532
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10753
https://usn.ubuntu.com/82-1/


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.



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