Overly broad permissions can turn one compromised account into a much larger security problem. Learn how to reduce unnecessary access, review privileges, and apply least privilege across modern Linux systems. Review Linux Privileges×

Alerts This Week
Warning Icon 1 461
Alerts This Week
Warning Icon 1 461

Red Hat 6: RHSA-2016:1267-01 Important: Command Injection Threat

red hat
Calendar Grey June 21, 2016
Scroller Redhat
The latest security patch from Red Hat for setroubleshoot resolves critical command execution vulnerabilities that impact a variety of software packages.
An update for setroubleshoot and setroubleshoot-plugins is now available for Red Hat Enterprise Linux 6

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

Summary

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 root privileges. (CVE-2016-4445, 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 root privileges. (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-2016-4445 and CVE-2016-4989 issues were discovered by Red Hat Product Security.

Topics%20covered

Topics Covered

security advisory Red Hat Enterprise Linux important command injection attack vector shell command setroubleshoot

References

https://access.redhat.com/security/cve/CVE-2016-4444 https://access.redhat.com/security/cve/CVE-2016-4445 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

Package List

Red Hat Enterprise Linux Desktop (v. 6):
Source: setroubleshoot-3.0.47-12.el6_8.src.rpm setroubleshoot-plugins-3.0.40-3.1.el6_8.src.rpm
i386: setroubleshoot-3.0.47-12.el6_8.i686.rpm setroubleshoot-debuginfo-3.0.47-12.el6_8.i686.rpm setroubleshoot-server-3.0.47-12.el6_8.i686.rpm
noarch: setroubleshoot-plugins-3.0.40-3.1.el6_8.noarch.rpm
x86_64: setroubleshoot-3.0.47-12.el6_8.x86_64.rpm setroubleshoot-debuginfo-3.0.47-12.el6_8.x86_64.rpm setroubleshoot-server-3.0.47-12.el6_8.x86_64.rpm
Red Hat Enterprise Linux Desktop Optional (v. 6):
i386: setroubleshoot-debuginfo-3.0.47-12.el6_8.i686.rpm setroubleshoot-doc-3.0.47-12.el6_8.i686.rpm
x86_64: setroubleshoot-debuginfo-3.0.47-12.el6_8.x86_64.rpm setroubleshoot-doc-3.0.47-12.el6_8.x86_64.rpm
Red Hat Enterprise Linux Server (v. 6):
Source: setroubleshoot-3.0.47-12.el6_8.src.rpm setroubleshoot-plugins-3.0.40-3.1.el6_8.src.rpm
i386: setroubleshoot-3.0.47-12.el6_8.i686.rpm setroubleshoot-debuginfo-3.0.47-12.el6_8.i686.rpm setroubleshoot-server-3.0.47-12.el6_8.i686.rpm
noarch: setroubleshoot-plugins-3.0.40-3.1.el6_8.noarch.rpm
ppc64: setroubleshoot-3.0.47-12.el6_8.ppc64.rpm setroubleshoot-debuginfo-3.0.47-12.el6_8.ppc64.rpm setroubleshoot-server-3.0.47-12.el6_8.ppc64.rpm
s390x: setroubleshoot-3.0.47-12.el6_8.s390x.rpm

Read the Full Advisory


Severity
important
Lowest
Low
Medium
High
Critical

Advisory ID: RHSA-2016:1267-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2016:1267
Issue date: 2016-06-21

Topic

An update for setroubleshoot and setroubleshoot-plugins is now availablefor Red Hat Enterprise Linux 6.Red Hat Product Security has rated this update as having a security impactof Important. A Common Vulnerability Scoring System (CVSS) base score,which gives a detailed severity rating, is available for each vulnerabilityfrom the CVE link(s) in the References section.

Topics%20covered

Topics Covered

security advisory Red Hat Enterprise Linux important command injection attack vector shell command setroubleshoot

Relevant Releases Architectures

Red Hat Enterprise Linux Desktop (v. 6) - i386, noarch, x86_64

Red Hat Enterprise Linux Desktop Optional (v. 6) - i386, x86_64

Red Hat Enterprise Linux Server (v. 6) - i386, noarch, ppc64, s390x, x86_64

Red Hat Enterprise Linux Server Optional (v. 6) - i386, ppc64, s390x, x86_64

Red Hat Enterprise Linux Workstation (v. 6) - i386, noarch, x86_64

Red Hat Enterprise Linux Workstation Optional (v. 6) - i386, x86_64

Bugs Fixed

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

1339183 - CVE-2016-4445 setroubleshoot: insecure use of commands.getstatusoutput

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

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

Get the latest News and Insights

Get the latest Linux and open source security news straight to your inbox.