CVE-2009-4141
7.2 · HIGHOverview
CVE-2009-4141 is a high-severity vulnerability affecting linux linux_kernel. It was published on January 19, 2010 and has a CVSS 2.0 base score of 7.2 (HIGH).
This vulnerability has a CVSS 2.0 base score of 7.2, rated HIGH. It requires local or adjacent network access to exploit. No authentication or special privileges are required for exploitation.
Technical Description
Use-after-free vulnerability in the fasync_helper function in fs/fcntl.c in the Linux kernel before 2.6.33-rc4-git1 allows local users to gain privileges via vectors that include enabling O_ASYNC (aka FASYNC or FIOASYNC) on a locked file, and then closing this file.
Remediation
Check the references section for vendor advisories and patches from linux. Update linux_kernel 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
| Vendor | Product | Versions | Status |
|---|---|---|---|
| linux | linux_kernel | 0 | Affected |
References
Frequently Asked Questions
What is CVE-2009-4141?
CVE-2009-4141 is a high-severity vulnerability affecting linux linux_kernel. It was published on January 19, 2010 and has a CVSS 2.0 base score of 7.2 (HIGH).
How severe is CVE-2009-4141?
This vulnerability has a CVSS 2.0 base score of 7.2, rated HIGH. 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-2009-4141?
Check the references section for vendor advisories and patches from linux. Update linux_kernel 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-2009-4141?
CyberStrike's AI-powered security agents can automatically detect CVE-2009-4141 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.
How CyberStrike Helps
AI agents map your attack surface to find vulnerabilities like this one.
Automated penetration testing that runs continuously, not just quarterly.
AI-driven PR review catches vulnerable dependencies before they ship.
Browser-based exploitation validates findings with real proof-of-concept.
Related HIGH CVEs from 2009
View all →WBPublish (aka WBPublish.exe) in Fujitsu-Siemens WebTransactions 7.0, 7.1, and possibly other versio
Multiple unspecified vulnerabilities in SPIP 1.8 before 1.8.3b, 1.9 before 1.9.2g, and 2.0 before 2.
The Advantech ADAM-6000 module has 00000000 as its default password, which makes it easier for remot
Buffer overflow in net/sctp/sm_statefuns.c in the Stream Control Transmission Protocol (sctp) implem
The Proxim Wireless Tsunami MP.11 2411 with firmware 3.0.3 has public as its default SNMP read/write
Multiple stack-based buffer overflows in HP OpenView Network Node Manager (OV NNM) 7.01, 7.51, and 7
The smmsnmpd service in CA Service Metric Analysis r11.0 through r11.1 SP1 and Service Level Managem
Unspecified vulnerability in the Oracle Secure Backup component in Oracle Secure Backup 10.1.0.3 all
Unspecified vulnerability in the Oracle Secure Backup component in Oracle Secure Backup 10.2.0.2 all
Unspecified vulnerability in the Oracle Secure Backup component in Oracle Secure Backup 10.2.0.2 all
Unspecified vulnerability in the Oracle Secure Backup component in Oracle Secure Backup 10.2.0.2 all
Unspecified vulnerability in the Oracle BEA WebLogic Server Plugins for Apache, Sun and IIS web serv