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Fencer Vulns
low 1.9

CVE-2009-3556 json

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…

published 2010-01-27 16 y ago modified 2026-06-16 4 mo ago also EUVD-2009-3537

cvss
1.9
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
0.4%
EPSS 0.4% chance of exploitation in 30 days, percentile 32%
public exploits
0
none known

Summary

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.

Patch / fix

  • kernel RHEL 5 2.6.18-164.11.1.el5
  • kernel-PAE RHEL 5 2.6.18-164.11.1.el5
  • kernel-xen RHEL 5 2.6.18-164.11.1.el5
  • kernel-kdump RHEL 5 2.6.18-164.11.1.el5
  • kernel-debuginfo-common RHEL 5 2.6.18-164.11.1.el5

red hat advisories RHSA-2010:0046

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2009-3556 updated cvss 3.6

kernel: qla2xxx NPIV vport management pseudofiles are world writable

  • Red Hat Enterprise Linux (v. 5 server) kernel 2.6.18-164.11.1.el5, kernel-PAE 2.6.18-164.11.1.el5, kernel-xen 2.6.18-164.11.1.el5, kernel-kdump 2.6.18-164.11.1.el5, kernel-debuginfo-common 2.6.18-164.11.1.el5 Red Hat Enterprise Linux Desktop (v. 5 client) kernel 2.6.18-164.11.1.el5, kernel-PAE 2.6.18-164.11.1.el5, kernel-xen 2.6.18-164.11.1.el5, kernel-kdump 2.6.18-164.11.1.el5, kernel-debuginfo-common 2.6.18-164.11.1.el5
    fixed: vendor fix RHSA-2010:0046

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

0.38% chance of exploitation in the next 30 days, higher than 32% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
NVD 2.0 1.9 AV:L/AC:M/Au:N/C:N/I:P/A:N

Classification

Weakness
  • CWE-264 Permissions, Privileges, and Access Controls
Technology feeds

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.