CVE-2012-2136

Severity CVSS v4.0:

Pending analysis

Type:

CWE-20 Input Validation

Publication date:

09/08/2012

Last modified:

11/04/2025

Description

The sock_alloc_send_pskb function in net/core/sock.c in the Linux kernel before 3.4.5 does not properly validate a certain length value, which allows local users to cause a denial of service (heap-based buffer overflow and system crash) or possibly gain privileges by leveraging access to a TUN/TAP device.

Impact

Vector 2.0

AV:L/AC:L/Au:N/C:C/I:C/A:C CVSS v2.0 Severity and Metrics:

Base Score: 7.20 HIGH
Vector: AV:L/AC:L/Au:N/C:C/I:C/A:C

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

Base Score 2.0

7.20

Severity 2.0

HIGH

Vulnerable products and versions

CPE	From	Up to
cpe:2.3:o:linux:linux_kernel::::::::		3.0.37 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	3.1 (including)	3.2.23 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	3.3 (including)	3.4.5 (excluding)

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

CVE-2012-2136

Description

Impact

Vulnerable products and versions

References to Advisories, Solutions, and Tools