CVE-2008-4609 Detail

Current Description

The TCP implementation in (1) Linux, (2) platforms based on BSD Unix, (3) Microsoft Windows, (4) Cisco products, and probably other operating systems allows remote attackers to cause a denial of service (connection queue exhaustion) via multiple vectors that manipulate information in the TCP state table, as demonstrated by sockstress.


View Analysis Description

Evaluator Description

Please see also: http://blog.robertlee.name/2008/10/more-detailed-response-to-gordons-post.html and http://www.curbrisk.com/security-blog/robert-e-lee-discusses-tcp-denial-service-vulnerability-sc-magazine.html

Severity



CVSS 3.x Severity and Metrics:

NIST CVSS score
NIST: NVD
Base Score:  N/A
NVD score not yet provided.


NVD Analysts use publicly available information to associate vector strings and CVSS scores. We also display any CVSS information provided within the CVE List from the CNA.

Note: NVD Analysts have not published a CVSS score for this CVE at this time. NVD Analysts use publicly available information at the time of analysis to associate CVSS vector strings.

Evaluator Impact

The impact of this vulnerability has yet to be determined. The full list of affected platforms is subject to change. The NVD will continue to monitor this vulnerability and adjust the configurations as needed.

Vendor Statements (disclaimer)

Official Statement fromRed Hat (09/08/2009)

The attacks reported by Outpost24 AB target the design limitations of the TCP protocol. Due to upstreams decision not to release updates, Red Hat do not plan to release updates to resolve these issues however, the effects of these attacks can be reduced via the mitigation methods as written in http://kbase.redhat.com/faq/docs/DOC-18730.

References to Advisories, Solutions, and Tools

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Hyperlink Resource
http://blog.robertlee.name/2008/10/conjecture-speculation.html
http://lists.immunitysec.com/pipermail/dailydave/2008-October/005360.html
http://marc.info/?l=bugtraq&m=125856010926699&w=2
http://searchsecurity.techtarget.com.au/articles/27154-TCP-is-fundamentally-borked
http://www.cisco.com/en/US/products/products_security_advisory09186a0080af511d.shtml
http://www.cisco.com/en/US/products/products_security_response09186a0080a15120.html
http://www.cpni.gov.uk/Docs/tn-03-09-security-assessment-TCP.pdf
http://www.mandriva.com/security/advisories?name=MDVSA-2013:150
http://www.oracle.com/technetwork/topics/security/cpujul2012-392727.html
http://www.outpost24.com/news/news-2008-10-02.html
http://www.us-cert.gov/cas/techalerts/TA09-251A.html US Government Resource 
https://docs.microsoft.com/en-us/security-updates/securitybulletins/2009/ms09-048
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A6340
https://www.cert.fi/haavoittuvuudet/2008/tcp-vulnerabilities.html

Weakness Enumeration

CWE-ID CWE Name Source
NVD-CWE-noinfo Insufficient Information cwe source acceptance level NIST  
CWE-16 Configuration cwe source acceptance level NIST  

Known Affected Software Configurations Switch to CPE 2.2

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