setroubleshoot allows local users to bypass an intended container protection mechanism and execute arbitrary commands by (1) triggering an SELinux denial with a crafted file name, which is handled by the _set_tpath function in audit_data.py or via a crafted (2) local_id or (3) analysis_id field in a crafted XML document to the run_fix function in SetroubleshootFixit.py, related to the subprocess.check_output and commands.getstatusoutput functions, a different vulnerability than CVE-2016-4445.
The product constructs all or part of a command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended command when it is sent to a downstream component.
| Link | Tags |
|---|---|
| https://bugzilla.redhat.com/show_bug.cgi?id=1346461 | issue tracking |
| https://rhn.redhat.com/errata/RHSA-2016-1267.html | third party advisory vendor advisory |
| https://github.com/fedora-selinux/setroubleshoot/commit/e69378d7e82a503534d29c5939fa219341e8f2ad | patch |
| http://seclists.org/oss-sec/2016/q2/574 | third party advisory mailing list |
| https://access.redhat.com/errata/RHSA-2016:1293 | third party advisory vendor advisory |
| http://securitytracker.com/id/1036144 | patch third party advisory vdb entry |
| https://github.com/fedora-selinux/setroubleshoot/commit/dda55aa50db95a25f0d919c3a0d5871827cdc40f | patch |