Security restrictions bypass in Linux kernel - CVE-2009-3556

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Main Vulnerability Database Vulnerabilities #VU92831

Security restrictions bypass in Linux kernel - CVE-2009-3556

Published: January 27, 2010 / Updated: February 13, 2023


Vulnerability identifier: #VU92831
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2009-3556
CWE-ID: CWE-264
Exploitation vector: Local access
Exploit availability: No public exploit available
Vendor: Linux Foundation
Affected software:
Linux kernel

Detailed vulnerability description

The vulnerability allows a local user to manipulate data.

A certain Red Hat configuration step for the qla2xxx driver in the Linux kernel 2.6.18 on Red Hat Enterprise Linux (RHEL) 5, when N_Port ID Virtualization (NPIV) hardware is used, sets world-writable permissions for the (1) vport_create and (2) vport_delete files under /sys/class/scsi_host/, which allows local users to make arbitrary changes to SCSI host attributes by modifying these files.


How to mitigate CVE-2009-3556

Install update from vendor's repository.

Sources