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Category:   Application (File Transfer/Sharing)  >   Red Hat Gluster Storage Vendors:   Red Hat
Red Hat Storage Certificate Processing Flaw in Python SSL Module Lets Remote Users Deny Service
SecurityTracker Alert ID:  1030877
SecurityTracker URL:  http://securitytracker.com/id/1030877
CVE Reference:   CVE-2013-2099   (Links to External Site)
Date:  Sep 19 2014
Impact:   Denial of service via network
Fix Available:  Yes  Vendor Confirmed:  Yes  
Version(s): 2.1
Description:   A vulnerability was reported in Red Hat Storage. A remote user can cause denial of service conditions.

A remote user can send a valid certificate with specially crafted wildcard characters to cause the target service to consume excessive CPU resources.

The vulnerability resides in the Python SSL module.

Florian Weimer of Red Hat Product Security reported this vulnerability.

Impact:   A remote user can cause excessive CPU consumption on the target system.
Solution:   The vendor has issued a fix.

The vendor's advisory is available at:

https://rhn.redhat.com/errata/RHSA-2014-1263.html

Vendor URL:  rhn.redhat.com/errata/RHSA-2014-1263.html (Links to External Site)
Cause:   Resource error
Underlying OS:  Linux (Red Hat Enterprise)
Underlying OS Comments:  5, 6

Message History:   None.


 Source Message Contents

Subject:  [RHSA-2014:1263-01] Low: Red Hat Storage 2.1 security, bug fix, and enhancement update

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=====================================================================
                   Red Hat Security Advisory

Synopsis:          Low: Red Hat Storage 2.1 security, bug fix, and enhancement update
Advisory ID:       RHSA-2014:1263-01
Product:           Red Hat Storage
Advisory URL:      https://rhn.redhat.com/errata/RHSA-2014-1263.html
Issue date:        2014-09-18
CVE Names:         CVE-2013-2099 
=====================================================================

1. Summary:

Updated glusterfs, geo-replication, and native client packages that fix one
security issue, several bugs, and adds an enhancement are now available Red
Hat Storage 2.1.

Red Hat Product Security has rated this update as having Low 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.

2. Relevant releases/architectures:

Red Hat Storage Console 2.1 - noarch
Red Hat Storage Native Client for Red Hat Enterprise Linux 5 - x86_64
Red Hat Storage Native Client for Red Hat Enterprise Linux 6 - x86_64
Red Hat Storage Server 2.1 - noarch, x86_64

3. Description:

Red Hat Storage is software-only, scale-out storage that provides flexible
and affordable unstructured data storage for an enterprise. GlusterFS, a
key building block of Red Hat Storage, is based on a stackable user-space
design and can deliver exceptional performance for diverse workloads.
GlusterFS aggregates various storage servers over network interconnections
into one large, parallel network file system.

A denial of service flaw was found in the way Python's SSL module
implementation performed matching of certain certificate names. A remote
attacker able to obtain a valid certificate that contained multiple
wildcard characters could use this flaw to issue a request to validate such
a certificate, resulting in excessive consumption of CPU. (CVE-2013-2099)

This issue was discovered by Florian Weimer of Red Hat Product Security.

This update also fixes several bugs and adds an enhancement. Space
precludes documenting all of these changes in this advisory. Users are
directed to the Red Hat Storage 2.1 Technical Notes, linked to in the
References section, for information on the most significant of these
changes.

With this update, a migration script 'migrate-rhs-classic-to-rhsm', that
applies to both Red Hat Storage Server and Red Hat Storage Console is
provided, that enables you to have the system prepared for upgrade from the
latest release of RHS 2.x to RHS 3.0. From the Red Hat Storage 3.0 release
onwards, there will be a significant change made in the subscription and
delivery mechanism from the previous Red Hat Network Classic to the new Red
Hat Subscription Manager, and this script assists in the smooth migration.

Users of Red Hat Storage are advised to upgrade to these updated packages,
which correct these issues and add these enhancements.

Note: After upgrading, it is recommend that you refer to the Knowledge Base
articles linked to in the References section which outlines an issue with
rebalance and file creation error that has been identified by Red Hat.
This issue will be fixed by a subsequent update.

4. 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/articles/11258

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

963260 - CVE-2013-2099 python: ssl.match_hostname() DoS via certificates with specially crafted hostname wildcard patterns
1062197 - dist-geo-rep : glusterfs rolling  upgrade (2.1 to 2.1.2) while geo-rep is running results in failure to update stime on bricks.
1126354 - dist-geo-rep: Python backtrace seen in geo-rep logs "ValueError: signal only works in main thread"
1135082 - "redhat-access-plugin-rhsc" package is NOT getting updated as part of "rhsc-setup" while upgrading to  RHSC 3.0 from 2.1 U4

6. Package List:

Red Hat Storage Native Client for Red Hat Enterprise Linux 5:

Source:
glusterfs-3.4.0.68rhs-1.el5.src.rpm

x86_64:
glusterfs-3.4.0.68rhs-1.el5.x86_64.rpm
glusterfs-api-3.4.0.68rhs-1.el5.x86_64.rpm
glusterfs-api-devel-3.4.0.68rhs-1.el5.x86_64.rpm
glusterfs-debuginfo-3.4.0.68rhs-1.el5.x86_64.rpm
glusterfs-devel-3.4.0.68rhs-1.el5.x86_64.rpm
glusterfs-fuse-3.4.0.68rhs-1.el5.x86_64.rpm
glusterfs-libs-3.4.0.68rhs-1.el5.x86_64.rpm
glusterfs-rdma-3.4.0.68rhs-1.el5.x86_64.rpm

Red Hat Storage Server 2.1:

Source:
glusterfs-3.4.0.68rhs-1.el6rhs.src.rpm
python-backports-1.0-3.el6.src.rpm
python-backports-ssl_match_hostname-3.4.0.2-1.el6.src.rpm
redhat-storage-server-2.1.4.2-1.el6rhs.src.rpm

noarch:
python-backports-ssl_match_hostname-3.4.0.2-1.el6.noarch.rpm
redhat-storage-server-2.1.4.2-1.el6rhs.noarch.rpm

x86_64:
glusterfs-3.4.0.68rhs-1.el6rhs.x86_64.rpm
glusterfs-api-3.4.0.68rhs-1.el6rhs.x86_64.rpm
glusterfs-api-devel-3.4.0.68rhs-1.el6rhs.x86_64.rpm
glusterfs-debuginfo-3.4.0.68rhs-1.el6rhs.x86_64.rpm
glusterfs-devel-3.4.0.68rhs-1.el6rhs.x86_64.rpm
glusterfs-fuse-3.4.0.68rhs-1.el6rhs.x86_64.rpm
glusterfs-geo-replication-3.4.0.68rhs-1.el6rhs.x86_64.rpm
glusterfs-libs-3.4.0.68rhs-1.el6rhs.x86_64.rpm
glusterfs-rdma-3.4.0.68rhs-1.el6rhs.x86_64.rpm
glusterfs-server-3.4.0.68rhs-1.el6rhs.x86_64.rpm
python-backports-1.0-3.el6.x86_64.rpm

Red Hat Storage Console 2.1:

Source:
rhsc-2.1.2-0.40.el6rhs.src.rpm
rhsc-branding-rhs-2.1.5-2.0.el6rhs.src.rpm

noarch:
rhsc-2.1.2-0.40.el6rhs.noarch.rpm
rhsc-backend-2.1.2-0.40.el6rhs.noarch.rpm
rhsc-branding-rhs-2.1.5-2.0.el6rhs.noarch.rpm
rhsc-dbscripts-2.1.2-0.40.el6rhs.noarch.rpm
rhsc-lib-2.1.2-0.40.el6rhs.noarch.rpm
rhsc-restapi-2.1.2-0.40.el6rhs.noarch.rpm
rhsc-setup-2.1.2-0.40.el6rhs.noarch.rpm
rhsc-tools-2.1.2-0.40.el6rhs.noarch.rpm
rhsc-webadmin-portal-2.1.2-0.40.el6rhs.noarch.rpm

Red Hat Storage Native Client for Red Hat Enterprise Linux 6:

Source:
glusterfs-3.4.0.68rhs-1.el6.src.rpm

x86_64:
glusterfs-3.4.0.68rhs-1.el6.x86_64.rpm
glusterfs-api-3.4.0.68rhs-1.el6.x86_64.rpm
glusterfs-api-devel-3.4.0.68rhs-1.el6.x86_64.rpm
glusterfs-debuginfo-3.4.0.68rhs-1.el6.x86_64.rpm
glusterfs-devel-3.4.0.68rhs-1.el6.x86_64.rpm
glusterfs-fuse-3.4.0.68rhs-1.el6.x86_64.rpm
glusterfs-libs-3.4.0.68rhs-1.el6.x86_64.rpm
glusterfs-rdma-3.4.0.68rhs-1.el6.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/#package

7. References:

https://www.redhat.com/security/data/cve/CVE-2013-2099.html
https://access.redhat.com/security/updates/classification/#low
https://access.redhat.com/site/documentation/en-US/Red_Hat_Storage/2.1/html/Technical_Notes/index.html
https://access.redhat.com/solutions/1199193
https://access.redhat.com/solutions/1189413

8. Contact:

The Red Hat security contact is <secalert@redhat.com>.  More contact
details at https://access.redhat.com/security/team/contact/

Copyright 2014 Red Hat, Inc.
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