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

Synopsis:          Important: libntirpc security update
Advisory ID:       RHSA-2017:1395-01
Product:           Red Hat Gluster Storage
Advisory URL:      https://access.redhat.com/errata/RHSA-2017:1395
Issue date:        2017-06-06
CVE Names:         CVE-2017-8779 
=====================================================================

1. Summary:

An update for libntirpc is now available for Red Hat Gluster Storage 3.2
for RHEL 6 and Red Hat Gluster Storage 3.2 for RHEL 7.

Red Hat Product Security has rated this update as having a security impact
of Important. A Common Vulnerability Scoring System (CVSS) base score,
which gives a detailed severity rating, is available for each vulnerability
from the CVE link(s) in the References section.

2. Relevant releases/architectures:

Red Hat Gluster Storage NFS 3.2 on RHEL-6 - x86_64
Red Hat Gluster Storage NFS 3.2 on RHEL-7 - x86_64

3. Description:

This package contains a new implementation of the original libtirpc,
transport-independent RPC (TI-RPC) library for NFS-Ganesha.

Security Fix(es):

* It was found that due to the way rpcbind uses libtirpc (libntirpc), a
memory leak can occur when parsing specially crafted XDR messages. An
attacker sending thousands of messages to rpcbind could cause its memory
usage to grow without bound, eventually causing it to be terminated by the
OOM killer. (CVE-2017-8779)

4. 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

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

1448124 - CVE-2017-8779 rpcbind, libtirpc, libntirpc: Memory leak when failing to parse XDR strings or bytearrays

6. Package List:

Red Hat Gluster Storage NFS 3.2 on RHEL-6:

Source:
libntirpc-1.4.3-4.el6rhs.src.rpm

x86_64:
libntirpc-1.4.3-4.el6rhs.x86_64.rpm
libntirpc-debuginfo-1.4.3-4.el6rhs.x86_64.rpm
libntirpc-devel-1.4.3-4.el6rhs.x86_64.rpm

Red Hat Gluster Storage NFS 3.2 on RHEL-7:

Source:
libntirpc-1.4.3-4.el7rhgs.src.rpm

x86_64:
libntirpc-1.4.3-4.el7rhgs.x86_64.rpm
libntirpc-debuginfo-1.4.3-4.el7rhgs.x86_64.rpm
libntirpc-devel-1.4.3-4.el7rhgs.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/

7. References:

https://access.redhat.com/security/cve/CVE-2017-8779
https://access.redhat.com/security/updates/classification/#important

8. Contact:

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

Copyright 2017 Red Hat, Inc.
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