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Fencer Vulns
high 7.0

CVE-2016-4446 json

The allow_execstack plugin for setroubleshoot allows local users to execute arbitrary commands by triggering an execstack SELinux denial wi…

published 2017-04-11 9 y ago modified 2026-06-17 4 mo ago also EUVD-2016-5435

cvss
7.0
version 3.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
0.5%
EPSS 0.5% chance of exploitation in 30 days, percentile 41%
public exploits
0
none known

Summary

The allow_execstack plugin for setroubleshoot allows local users to execute arbitrary commands by triggering an execstack SELinux denial with a crafted filename, related to the commands.getoutput function.

Patch / fix

  • setroubleshoot RHEL 7 3.2.24-4.el7_2
  • setroubleshoot-plugins RHEL 7 3.0.59-2.el7_2
  • setroubleshoot-server RHEL 7 3.2.24-4.el7_2
  • setroubleshoot RHEL 6 3.0.47-12.el6_8
  • setroubleshoot-plugins RHEL 6 3.0.40-3.1.el6_8
  • setroubleshoot-server RHEL 6 3.0.47-12.el6_8

red hat advisories RHSA-2016:1293RHSA-2016:1267

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-2016-4446 updated cvss 6.9

setroubleshoot-plugins: insecure commands.getoutput use in the allow_execstack plugin

  • Red Hat Enterprise Linux Client (v. 7) setroubleshoot 3.2.24-4.el7_2, setroubleshoot-server 3.2.24-4.el7_2, setroubleshoot-plugins 3.0.59-2.el7_2
    fixed: vendor fix RHSA-2016:1293
  • Red Hat Enterprise Linux Desktop (v. 6) setroubleshoot 3.0.47-12.el6_8, setroubleshoot-server 3.0.47-12.el6_8, setroubleshoot-plugins 3.0.40-3.1.el6_8 Red Hat Enterprise Linux Desktop Optional (v. 6) setroubleshoot-doc 3.0.47-12.el6_8, setroubleshoot-debuginfo 3.0.47-12.el6_8 Red Hat Enterprise Linux Server (v. 6) setroubleshoot 3.0.47-12.el6_8, setroubleshoot-server 3.0.47-12.el6_8, setroubleshoot-plugins 3.0.40-3.1.el6_8
    fixed: vendor fix RHSA-2016:1267
  • Red Hat Enterprise Linux Server (v. 7) setroubleshoot 3.2.24-4.el7_2, setroubleshoot-server 3.2.24-4.el7_2, setroubleshoot-plugins 3.0.59-2.el7_2
    fixed: vendor fix RHSA-2016:1293
  • Red Hat Enterprise Linux Server Optional (v. 6) setroubleshoot-doc 3.0.47-12.el6_8, setroubleshoot-debuginfo 3.0.47-12.el6_8 Red Hat Enterprise Linux Workstation (v. 6) setroubleshoot 3.0.47-12.el6_8, setroubleshoot-server 3.0.47-12.el6_8, setroubleshoot-plugins 3.0.40-3.1.el6_8
    fixed: vendor fix RHSA-2016:1267
  • Red Hat Enterprise Linux Workstation (v. 7) setroubleshoot 3.2.24-4.el7_2, setroubleshoot-server 3.2.24-4.el7_2, setroubleshoot-plugins 3.0.59-2.el7_2
    fixed: vendor fix RHSA-2016:1293
  • Red Hat Enterprise Linux Workstation Optional (v. 6) setroubleshoot-doc 3.0.47-12.el6_8, setroubleshoot-debuginfo 3.0.47-12.el6_8
    fixed: vendor fix RHSA-2016:1267
  • Red Hat Enterprise Linux 5 setroubleshoot-plugins
    not affected: vulnerable code not present

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

0.47% chance of exploitation in the next 30 days, higher than 41% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • seclists.org http://seclists.org/oss-sec/2016/q2/575 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 3.0 7.0 CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
NVD 2.0 6.9 AV:L/AC:M/Au:N/C:C/I:C/A:C

Classification

Weakness
  • CWE-77 Improper Neutralization of Special Elements used in a Command

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.