Security Advisory Moderate: rubygems security update

Advisory: RHSA-2014:0207-1
Type: Security Advisory
Severity: Moderate
Issued on: 2014-02-24
Last updated on: 2014-02-24
Affected Products: Red Hat OpenShift Enterprise 2
CVEs ( CVE-2013-4287


An updated rubygems package that fixes one security issue is now available
for Red Hat OpenShift Enterprise 2.0.2.

The Red Hat Security Response Team has rated this update as having Moderate
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.

RubyGems is the Ruby standard for publishing and managing third-party

It was discovered that the rubygems API validated version strings using an
unsafe regular expression. An application making use of this API to process
a version string from an untrusted source could be vulnerable to a denial
of service attack through CPU exhaustion. (CVE-2013-4287)

Red Hat would like to thank Rubygems upstream for reporting this issue.
Upstream acknowledges Damir Sharipov as the original reporter.

All users of Red Hat OpenShift Enterprise 2.0.2 are advised to upgrade to
this updated package, which contains a backported patch to correct this


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

Updated packages

Red Hat OpenShift Enterprise 2

rubygems-1.8.24-5.el6op.src.rpm     MD5: 393edcba9231de29d55d0e6098e2e9ee
SHA-256: c014eddd00b39919d1e2b3a7df31c11e0994912cee19c05b1f40de0b086f65b7
rubygems-1.8.24-5.el6op.noarch.rpm     MD5: 4ffbacc60e3f8ce11c99a9bd1d6aecc3
SHA-256: 2ed4b807b2fe8d4d9d71ee35a30c31489180adfc4704dcb488e91b8f120895f8
rubygems-devel-1.8.24-5.el6op.noarch.rpm     MD5: 8a23b5b853aa2e65435f4ca4835f0b20
SHA-256: a28df83246b785116fc32df3c075c419b437315798a3d044e1126e151891eabc
(The unlinked packages above are only available from the Red Hat Network)

Bugs fixed (see bugzilla for more information)

1002364 - CVE-2013-4287 rubygems: version regex algorithmic complexity vulnerability


These packages are GPG signed by Red Hat for security. Our key and details on how to verify the signature are available from:

The Red Hat security contact is More contact details at