CVE-2011-4112
5.5 · MEDIUMOverview
CVE-2011-4112 is a medium-severity vulnerability affecting linux linux_kernel. It was published on May 17, 2012 and has a CVSS 3.1 base score of 5.5 (MEDIUM).
This vulnerability has a CVSS 3.1 base score of 5.5, rated MEDIUM. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.
Technical Description
The net subsystem in the Linux kernel before 3.1 does not properly restrict use of the IFF_TX_SKB_SHARING flag, which allows local users to cause a denial of service (panic) by leveraging the CAP_NET_ADMIN capability to access /proc/net/pktgen/pgctrl, and then using the pktgen package in conjunction with a bridge device for a VLAN interface.
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, < 3.1 | Affected |
| avaya | 9608_firmware | 6.0 | Affected |
| avaya | 9608g_firmware | 6.0 | Affected |
| avaya | 9611g_firmware | 6.0 | Affected |
| avaya | 9621g_firmware | 6.0 | Affected |
| avaya | 9641g_firmware | 6.0 | Affected |
| avaya | 9641gs_firmware | 6.0 | Affected |
References
Frequently Asked Questions
What is CVE-2011-4112?
CVE-2011-4112 is a medium-severity vulnerability affecting linux linux_kernel. It was published on May 17, 2012 and has a CVSS 3.1 base score of 5.5 (MEDIUM).
How severe is CVE-2011-4112?
This vulnerability has a CVSS 3.1 base score of 5.5, rated MEDIUM. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.
How do I fix or remediate CVE-2011-4112?
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-2011-4112?
CyberStrike's AI-powered security agents can automatically detect CVE-2011-4112 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.
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