SB2010012702 - Security restrictions bypass in Linux kernel
Published: January 27, 2010
Security Bulletin ID
SB2010012702
Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Data manipulation
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Security restrictions bypass (CVE-ID: CVE-2009-3556)
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.
Remediation
Install update from vendor's website.
References
- https://bugzilla.redhat.com/show_bug.cgi?id=537177
- https://rhn.redhat.com/errata/RHSA-2010-0046.html
- http://www.openwall.com/lists/oss-security/2010/01/20/2
- https://rhn.redhat.com/errata/RHSA-2010-0095.html
- http://support.avaya.com/css/P8/documents/100073666
- http://lists.opensuse.org/opensuse-security-announce/2010-03/msg00007.html
- https://exchange.xforce.ibmcloud.com/vulnerabilities/55809
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A9738
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A6744