RHSA-2014:0764 - Security Advisory

Topic

An updated rubygem-openshift-origin-node package that fixes one security
issue and several bugs is now available for Red Hat OpenShift Enterprise
2.1.1.

The Red Hat Security Response Team has rated this update as having Critical
security impact. A Common Vulnerability Scoring System (CVSS) base score,
which gives a detailed severity rating, is available from the CVE link in
the References section.

Description

The rubygem-openshift-origin-node package provides basic OpenShift node
functionality.

A command injection flaw was found in rubygem-openshift-origin-node.
A remote, authenticated user permitted to install cartridges via the web
interface could use this flaw to execute arbitrary code with root
privileges on the Red Hat OpenShift Enterprise node server. (CVE-2014-3496)

This issue was discovered by Jeremy Choi of the Red Hat HSS Pen-test Team.

The rubygem-openshift-origin-node package has been upgraded to version
1.23.9.11. Additionally, the rubygem-openshift-origin-container-selinux
package has been upgraded to version 0.8.1.2, as needed by the updated
rubygem-openshift-origin-node package.

This update also fixes the following bugs:

• The syslog_logger.rb implementation on nodes made incorrect use of the

Ruby Syslog library. Raw log message input was handled as a Syslog format
string, causing failures for many application operations. This bug fix
updates the implementation to correctly handle raw log message input, and
the failures no longer occur. (BZ#1096900)

• Under certain conditions, it was possible for the MCollective agent on

nodes to fail to fully initialize while checking the status of a cartridge.
This resulted in sporadic failures of rhc cartridge status. This bug fix
ensures that the agent is always fully initialized. (BZ#1102399)

• Developers encountered syntax errors when connecting to a gear using the

'rhc ssh' command if the gear was hosted on a node with quotas disabled.
This was due to the command trying to report quota information but being
given an empty string because quotas were disabled. This bug fix updates
the handling for reporting on quotas when there is no information to
report, and the syntax errors no longer occur. (BZ#1107801)

• If a file containing invalid special characters was placed in an

application's ~/.env/user_vars directory, subsequent interactions with the
application using SSH or Git were refused. This was due to problems with
the node component handling the invalid characters. This bug fix updates
the node component to handle problematic files in ~/.env/user_vars; as a
result, interactions with the application using SSH or Git succeed as
normal. (BZ#1096833)

All rubygem-openshift-origin-node users are advised to upgrade to this
updated package, which contains a backported patch to correct this issue.

Solution

Before applying this update, make sure all previously released errata
relevant to your system have been applied.

This update is available via the Red Hat Network. Details on how to
use the Red Hat Network to apply this update are available at
https://access.redhat.com/site/articles/11258

Affected Products

• Red Hat OpenShift Enterprise Application Node 2.1 x86_64

Fixes

• BZ - 1096833 - Errors in user_vars/* files block ssh access, git access
• BZ - 1096900 - Log messages are being interpolated by syslog_logger.rb, causing random app operation failures
• BZ - 1102399 - [new relic] undefined method `run_in_container_context' for nil:NilClass on INT nodes
• BZ - 1107801 - rhcsh quota check prints error messages on login if quotas are disabled
• BZ - 1110470 - CVE-2014-3496 OpenShift Origin: Command execution as root via downloadable cartridge source-url

CVEs

• CVE-2014-3496

References

• https://access.redhat.com/security/updates/classification/#critical