CVE-2009-3556

Severity: low (CVSS 1.9 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.4% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2010-01-27 · updated 2026-06-16
Weakness: CWE-264

Description

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.

Affected products

Linux kernel: 2.6.18
Red Hat Enterprise Linux: 5

References

http://lists.opensuse.org/opensuse-security-announce/2010-03/msg00007.html
http://support.avaya.com/css/P8/documents/100073666
http://www.openwall.com/lists/oss-security/2010/01/20/2
https://bugzilla.redhat.com/show_bug.cgi?id=537177
https://exchange.xforce.ibmcloud.com/vulnerabilities/55809
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A6744
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A9738
https://rhn.redhat.com/errata/RHSA-2010-0046.html
https://rhn.redhat.com/errata/RHSA-2010-0095.html
http://lists.opensuse.org/opensuse-security-announce/2010-03/msg00007.html
http://support.avaya.com/css/P8/documents/100073666
http://www.openwall.com/lists/oss-security/2010/01/20/2

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