CVE-2011-4112

The net subsystem in the Linux kernel before 3.1 does not properly restrict use of the...

5.5 Medium

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.

Attack profile

How easy it is to exploit

Attack vector: Local
Complexity: Low
Privileges needed: Low
User interaction: None

What an attacker can affect

Confidentiality: None
Integrity: None
Availability: High

Exploit likelihood

0.47%Down 0.6 points since Feb 4, 2022

What each source reports

NVD Score used 5.5

Record: CVE-2011-4112
CVSS 3.1: 5.5 MediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CVSS 2.0: 4.9 MediumAV:L/AC:L/Au:N/C:N/I:N/A:C
Updated: 2026-11-02

CVE List No score

Record: CVE-2011-4112
Updated: 2026-11-02

EUVDEUVD-2011-4060 No score

Record: EUVD-2011-4060
Updated: 2026-11-03

GitHub AdvisoriesGHSA-xhfj-c879-xq4w 5.5

The net subsystem in the Linux kernel before 3.1 does not properly restrict use of the...

Record: GHSA-xhfj-c879-xq4w
CVSS 3.1: 5.5 MediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Updated: 2026-11-02

Affected products

History

History
Recorded	Changed	Sources
Nov 3, 2026	aliases	EUVD
Nov 2, 2026	first indexed	CVE List, GitHub Advisories, NVD

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2011-4112 is a medium vulnerability (CVSS 5.5) in Linux Kernel, published May 17, 2012. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.47%, the 40th percentile. No source names a fixed version.