CVE-2013-4270

kernel: net: permissions flaw in /proc/sys/net

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Severity

Moderate

Red Hat Product Security

4.7

CVSS 2.0

Review impact separately from score.

Published · October 6, 2013

Updated · November 21, 2025

Description

The net_ctl_permissions function in net/sysctl_net.c in the Linux kernel before 3.11.5 does not properly determine uid and gid values, which allows local users to bypass intended /proc/sys/net restrictions via a crafted application.

Statement

This issue does not affect the version of the kernel package as shipped with Red Hat Enterprise Linux 5 and 6.

CVSS score applicability

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.

Mitigation

No mitigation is specified in collected source.

CVSS / CWE

CVSS 2.0 · 4.7
AV:L/AC:M/Au:N/C:N/I:N/A:C

CWE not specified