[RHSA-2016:1293-01] Important: setroubleshoot and setroubleshoot-plugins security update

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Red Hat Security Advisory

 

Synopsis: Important: setroubleshoot and setroubleshoot-plugins security update

Advisory ID: RHSA-2016:1293-01

Product: Red Hat Enterprise Linux

Advisory URL: https://access.redhat.com/errata/RHSA-2016:1293

Issue date: 2016-06-23

CVE Names: CVE-2016-4444 CVE-2016-4446 CVE-2016-4989

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1. Summary:

 

An update for setroubleshoot and setroubleshoot-plugins is now available

for Red Hat Enterprise Linux 7.

 

Red Hat Product Security has rated this update as having a security impact

of Important. A Common Vulnerability Scoring System (CVSS) base score,

which gives a detailed severity rating, is available for each vulnerability

from the CVE link(s) in the References section.

 

2. Relevant releases/architectures:

 

Red Hat Enterprise Linux Client (v. 7) - noarch, x86_64

Red Hat Enterprise Linux Server (v. 7) - noarch, ppc64, ppc64le, s390x, x86_64

Red Hat Enterprise Linux Workstation (v. 7) - noarch, x86_64

 

3. Description:

 

The setroubleshoot packages provide tools to help diagnose SELinux

problems. When Access Vector Cache (AVC) messages are returned, an alert

can be generated that provides information about the problem and helps to

track its resolution.

 

The setroubleshoot-plugins package provides a set of analysis plugins for

use with setroubleshoot. Each plugin has the capacity to analyze SELinux

AVC data and system data to provide user friendly reports describing how to

interpret SELinux AVC denials.

 

Security Fix(es):

 

* Shell command injection flaws were found in the way the setroubleshoot

executed external commands. A local attacker able to trigger certain

SELinux denials could use these flaws to execute arbitrary code with

privileges of the setroubleshoot user. (CVE-2016-4989)

 

* Shell command injection flaws were found in the way the setroubleshoot

allow_execmod and allow_execstack plugins executed external commands. A

local attacker able to trigger an execmod or execstack SELinux denial could

use these flaws to execute arbitrary code with privileges of the

setroubleshoot user. (CVE-2016-4444, CVE-2016-4446)

 

The CVE-2016-4444 and CVE-2016-4446 issues were discovered by Milos Malik

(Red Hat) and the CVE-2016-4989 issue was discovered by Red Hat Product

Security.

 

Note: On Red Hat Enterprise Linux 7.0 and 7.1, the setroubleshoot is run

with root privileges. Therefore, these issues could allow an attacker to

execute arbitrary code with root privileges.

 

4. Solution:

 

For details on how to apply this update, which includes the changes

described in this advisory, refer to:

 

https://access.redhat.com/articles/11258

 

5. Bugs fixed (https://bugzilla.redhat.com/):

 

1332644 - CVE-2016-4444 setroubleshoot-plugins: insecure commands.getstatusoutput use in the allow_execmod plugin

1339250 - CVE-2016-4446 setroubleshoot-plugins: insecure commands.getoutput use in the allow_execstack plugin

1346461 - CVE-2016-4989 setroubleshoot: command injection issues

 

6. Package List:

 

Red Hat Enterprise Linux Client (v. 7):

 

Source:

setroubleshoot-3.2.24-4.el7_2.src.rpm

setroubleshoot-plugins-3.0.59-2.el7_2.src.rpm

 

noarch:

setroubleshoot-plugins-3.0.59-2.el7_2.noarch.rpm

 

x86_64:

setroubleshoot-3.2.24-4.el7_2.x86_64.rpm

setroubleshoot-debuginfo-3.2.24-4.el7_2.x86_64.rpm

setroubleshoot-server-3.2.24-4.el7_2.x86_64.rpm

 

Red Hat Enterprise Linux Server (v. 7):

 

Source:

setroubleshoot-3.2.24-4.el7_2.src.rpm

setroubleshoot-plugins-3.0.59-2.el7_2.src.rpm

 

noarch:

setroubleshoot-plugins-3.0.59-2.el7_2.noarch.rpm

 

ppc64:

setroubleshoot-3.2.24-4.el7_2.ppc64.rpm

setroubleshoot-debuginfo-3.2.24-4.el7_2.ppc64.rpm

setroubleshoot-server-3.2.24-4.el7_2.ppc64.rpm

 

ppc64le:

setroubleshoot-3.2.24-4.el7_2.ppc64le.rpm

setroubleshoot-debuginfo-3.2.24-4.el7_2.ppc64le.rpm

setroubleshoot-server-3.2.24-4.el7_2.ppc64le.rpm

 

s390x:

setroubleshoot-3.2.24-4.el7_2.s390x.rpm

setroubleshoot-debuginfo-3.2.24-4.el7_2.s390x.rpm

setroubleshoot-server-3.2.24-4.el7_2.s390x.rpm

 

x86_64:

setroubleshoot-3.2.24-4.el7_2.x86_64.rpm

setroubleshoot-debuginfo-3.2.24-4.el7_2.x86_64.rpm

setroubleshoot-server-3.2.24-4.el7_2.x86_64.rpm

 

Red Hat Enterprise Linux Workstation (v. 7):

 

Source:

setroubleshoot-3.2.24-4.el7_2.src.rpm

setroubleshoot-plugins-3.0.59-2.el7_2.src.rpm

 

noarch:

setroubleshoot-plugins-3.0.59-2.el7_2.noarch.rpm

 

x86_64:

setroubleshoot-3.2.24-4.el7_2.x86_64.rpm

setroubleshoot-debuginfo-3.2.24-4.el7_2.x86_64.rpm

setroubleshoot-server-3.2.24-4.el7_2.x86_64.rpm

 

These packages are GPG signed by Red Hat for security. Our key and

details on how to verify the signature are available from

https://access.redhat.com/security/team/key/

 

7. References:

 

https://access.redhat.com/security/cve/CVE-2016-4444

https://access.redhat.com/security/cve/CVE-2016-4446

https://access.redhat.com/security/cve/CVE-2016-4989

https://access.redhat.com/security/updates/classification/#important

 

8. Contact:

 

The Red Hat security contact is . More contact

details at https://access.redhat.com/security/team/contact/

 

Copyright 2016 Red Hat, Inc.

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