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CVE-2009-2918

2.1 · LOW

The tgbvpn.sys driver in TheGreenBow IPSec VPN Client 4.61.003 allows local users to cause a denial of service (NULL pointer dereference and system crash) via a crafted request to the 0x80000034 IO…

Published Aug 21, 2009thegreenbowCWE-20EPSS 0.85%

Overview

CVE-2009-2918 is a low-severity vulnerability affecting thegreenbow thegreenbow_vpn_client. It was published on August 21, 2009 and has a CVSS 2.0 base score of 2.1 (LOW).

This vulnerability has a CVSS 2.0 base score of 2.1, rated LOW. It requires local or adjacent network access to exploit. No authentication or special privileges are required for exploitation.

Technical description

The tgbvpn.sys driver in TheGreenBow IPSec VPN Client 4.61.003 allows local users to cause a denial of service (NULL pointer dereference and system crash) via a crafted request to the 0x80000034 IOCTL, probably involving an input or output buffer size of 0.

Remediation

Check the references section for vendor advisories and patches from thegreenbow. Update thegreenbow_vpn_client 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

References

Refsecunia.com/advisories/36332Refwww.securityfocus.com/archive/1/505816/100/0/threadedRefwww.vupen.com/english/advisories/2009/2294Refwww.evilfingers.com/advisory/Advisory/TheGreenBow_VPN_Client_tgbvpn.sys_DoS.phpRefsecunia.com/advisories/36332Refwww.securityfocus.com/archive/1/505816/100/0/threadedRefwww.vupen.com/english/advisories/2009/2294Refwww.evilfingers.com/advisory/Advisory/TheGreenBow_VPN_Client_tgbvpn.sys_DoS.php

How CyberStrike helps

Frequently asked questions

What is CVE-2009-2918?

CVE-2009-2918 is a low-severity vulnerability affecting thegreenbow thegreenbow_vpn_client. It was published on August 21, 2009 and has a CVSS 2.0 base score of 2.1 (LOW).

How severe is CVE-2009-2918?

This vulnerability has a CVSS 2.0 base score of 2.1, rated LOW. It requires local or adjacent network access to exploit. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2009-2918?

Check the references section for vendor advisories and patches from thegreenbow. Update thegreenbow_vpn_client 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-2009-2918?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2009-2918 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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