CVE-2008-4609

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.

• CWE-16

• http://blog.robertlee.name/2008/10/conjecture-speculation.htmlBroken Link
• http://insecure.org/stf/tcp-dos-attack-explained.htmlBroken Link
• http://lists.immunitysec.com/pipermail/dailydave/2008-October/005360.htmlBroken Link
• http://marc.info/?l=bugtraq&m=125856010926699&w=2Third Party Advisory
• http://searchsecurity.techtarget.com.au/articles/27154-TCP-is-fundamentally-borkedBroken Link
• http://www.cisco.com/en/US/products/products_security_advisory09186a0080af511d.shtmlBroken Link
• http://www.cisco.com/en/US/products/products_security_response09186a0080a15120.htmlBroken Link
• http://www.cpni.gov.uk/Docs/tn-03-09-security-assessment-TCP.pdfBroken Link
• http://www.mandriva.com/security/advisories?name=MDVSA-2013:150Broken Link
• http://www.oracle.com/technetwork/topics/security/cpujul2012-392727.htmlThird Party Advisory
• http://www.outpost24.com/news/news-2008-10-02.htmlBroken Link
• http://www.us-cert.gov/cas/techalerts/TA09-251A.htmlThird Party Advisory, US Government Resource
• https://docs.microsoft.com/en-us/security-updates/securitybulletins/2009/ms09-048Patch, Third Party Advisory
• https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A6340Broken Link
• https://www.cert.fi/haavoittuvuudet/2008/tcp-vulnerabilities.htmlBroken Link
• http://blog.robertlee.name/2008/10/conjecture-speculation.htmlBroken Link
• http://insecure.org/stf/tcp-dos-attack-explained.htmlBroken Link
• http://lists.immunitysec.com/pipermail/dailydave/2008-October/005360.htmlBroken Link
• http://marc.info/?l=bugtraq&m=125856010926699&w=2Third Party Advisory
• http://searchsecurity.techtarget.com.au/articles/27154-TCP-is-fundamentally-borkedBroken Link
• http://www.cisco.com/en/US/products/products_security_advisory09186a0080af511d.shtmlBroken Link
• http://www.cisco.com/en/US/products/products_security_response09186a0080a15120.htmlBroken Link
• http://www.cpni.gov.uk/Docs/tn-03-09-security-assessment-TCP.pdfBroken Link
• http://www.mandriva.com/security/advisories?name=MDVSA-2013:150Broken Link
• http://www.oracle.com/technetwork/topics/security/cpujul2012-392727.htmlThird Party Advisory
• http://www.outpost24.com/news/news-2008-10-02.htmlBroken Link
• http://www.us-cert.gov/cas/techalerts/TA09-251A.htmlThird Party Advisory, US Government Resource
• https://docs.microsoft.com/en-us/security-updates/securitybulletins/2009/ms09-048Patch, Third Party Advisory
• https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A6340Broken Link
• https://www.cert.fi/haavoittuvuudet/2008/tcp-vulnerabilities.htmlBroken Link

Published

Oct 20, 2008

Last Modified

Jun 16, 2026

Status

Modified

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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