Instituto Nacional de ciberseguridad. Sección Incibe
Instituto Nacional de Ciberseguridad. Sección INCIBE-CERT

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CVE-2011-4112

Severity CVSS v4.0:
Pending analysis
Type:
Unavailable / Other
Publication date:
17/05/2012
Last modified:
11/04/2025

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.

Impact

Vector 3.x
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H CVSS v3.1 Severity and Metrics:

Base Score: 5.50 MEDIUM
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Attack Vector (AV): Local
Attack Complexity (AC): Low
Privileges Required (PR): Low
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): None
Integrity (I): None
Availability (A): High

Base Score 3.x
5.50
Severity 3.x
MEDIUM
Vector 2.0
AV:L/AC:L/Au:N/C:N/I:N/A:C CVSS v2.0 Severity and Metrics:

Base Score: 4.90 MEDIUM
Vector: AV:L/AC:L/Au:N/C:N/I:N/A:C

Attack Vector (AV): Local
Attack Complexity (AC): Low
Authentication (Au): None
Confidentiality (C): None
Integrity (I): None
Availability (A): Complete

Base Score 2.0
4.90
Severity 2.0
MEDIUM

Vulnerable products and versions

CPE From Up to
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* 3.1 (excluding)
cpe:2.3:o:avaya:9608_firmware:*:*:*:*:*:*:*:* 6.0 (including) 6.6.0 (including)
cpe:2.3:h:avaya:9608:-:*:*:*:*:*:*:*
cpe:2.3:o:avaya:9608g_firmware:*:*:*:*:*:*:*:* 6.0 (including) 6.6.0 (including)
cpe:2.3:h:avaya:9608g:-:*:*:*:*:*:*:*
cpe:2.3:o:avaya:9611g_firmware:*:*:*:*:*:*:*:* 6.0 (including) 6.6.0 (including)
cpe:2.3:h:avaya:9611g:-:*:*:*:*:*:*:*
cpe:2.3:o:avaya:9621g_firmware:*:*:*:*:*:*:*:* 6.0 (including) 6.6.0 (including)
cpe:2.3:h:avaya:9621g:-:*:*:*:*:*:*:*
cpe:2.3:o:avaya:9641g_firmware:*:*:*:*:*:*:*:* 6.0 (including) 6.6.0 (including)
cpe:2.3:h:avaya:9641g:-:*:*:*:*:*:*:*
cpe:2.3:o:avaya:9641gs_firmware:*:*:*:*:*:*:*:* 6.0 (including) 6.6.0 (including)
cpe:2.3:h:avaya:9641gs:-:*:*:*:*:*:*:*

To consult the complete list of CPE names with products and versions, see this page


References to Advisories, Solutions, and Tools