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CVE-2008-4609

7.1 · HIGH

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 se…

Published Oct 20, 2008bsdCWE-16EPSS 32.12%

Overview

CVE-2008-4609 is a high-severity vulnerability affecting bsd bsd. It was published on October 20, 2008 and has a CVSS 2.0 base score of 7.1 (HIGH).

This vulnerability has a CVSS 2.0 base score of 7.1, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical 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.

Remediation

Check the references section for vendor advisories and patches from bsd. Update bsd to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

Affected products

VendorProductVersionsStatus
ciscocatalyst_blade_switch_3020_firmware>= 0, < 12.2\(50\)Affected
ciscocatalyst_blade_switch_3120_firmware>= 0, < 12.2\(50\)Affected
ciscocatalyst_blade_switch_3120x_firmware>= 0, < 12.2\(50\)Affected

References

Refblog.robertlee.name/2008/10/conjecture-speculation.htmlRefinsecure.org/stf/tcp-dos-attack-explained.htmlReflists.immunitysec.com/pipermail/dailydave/2008-October/005360.htmlRefmarc.info/?l=bugtraq&m=125856010926699&w=2Refsearchsecurity.techtarget.com.au/articles/27154-TCP-is-fundamentally-borkedRefwww.cisco.com/en/US/products/products_security_advisory09186a0080af511d.shtmlRefwww.cisco.com/en/US/products/products_security_response09186a0080a15120.htmlRefwww.cpni.gov.uk/Docs/tn-03-09-security-assessment-TCP.pdfRefwww.mandriva.com/security/advisories?name=MDVSA-2013:150Refwww.oracle.com/technetwork/topics/security/cpujul2012-392727.html

How CyberStrike helps

Frequently asked questions

What is CVE-2008-4609?

CVE-2008-4609 is a high-severity vulnerability affecting bsd bsd. It was published on October 20, 2008 and has a CVSS 2.0 base score of 7.1 (HIGH).

How severe is CVE-2008-4609?

This vulnerability has a CVSS 2.0 base score of 7.1, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2008-4609?

Check the references section for vendor advisories and patches from bsd. Update bsd to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2008-4609?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2008-4609 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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