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Category:   Application (VPN)  >   OpenSSL Vendors:   OpenSSL.org
(Red Hat Issues Fix) OpenSSL TLS Heartbeat Buffer Overread Lets Remote Users Obtain Potentially Sensitive Information
SecurityTracker Alert ID:  1030028
SecurityTracker URL:  http://securitytracker.com/id/1030028
CVE Reference:   CVE-2014-0160   (Links to External Site)
Date:  Apr 8 2014
Impact:   Disclosure of authentication information, Disclosure of system information, Disclosure of user information
Fix Available:  Yes  Vendor Confirmed:  Yes  
Version(s): 1.0.1 through 1.0.1f; 1.0.2-beta
Description:   A vulnerability was reported in OpenSSL. A remote user can obtain potentially sensitive information.

A remote client or server can trigger a buffer overread in the processing of the TLS heartbeat extension to obtain up to 64k of memory (per heartbeat request), potentially including encryption keys.

The vulnerability was introduced to the source code in December 2011 and to release version 1.0.1 in March 2012.

[Editor's note: This vulnerability is known as the OpenSSL heartbleed vulnerability.]

Neel Mehta of Google Security reported this vulnerability.

Impact:   A remote user can obtain potentially sensitive information, including encryption keys.
Solution:   Red Hat has issued a fix.

The Red Hat advisory is available at:

https://rhn.redhat.com/errata/RHSA-2014-0376.html

Vendor URL:  www.openssl.org/news/secadv_20140407.txt (Links to External Site)
Cause:   Access control error, Boundary error
Underlying OS:  Linux (Red Hat Enterprise)
Underlying OS Comments:  6

Message History:   This archive entry is a follow-up to the message listed below.
Apr 8 2014 OpenSSL TLS Heartbeat Buffer Overread Lets Remote Users Obtain Potentially Sensitive Information



 Source Message Contents

Subject:  [RHSA-2014:0376-01] Important: openssl security update

-----BEGIN PGP SIGNED MESSAGE-----
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=====================================================================
                   Red Hat Security Advisory

Synopsis:          Important: openssl security update
Advisory ID:       RHSA-2014:0376-01
Product:           Red Hat Enterprise Linux
Advisory URL:      https://rhn.redhat.com/errata/RHSA-2014-0376.html
Issue date:        2014-04-08
CVE Names:         CVE-2014-0160 
=====================================================================

1. Summary:

Updated openssl packages that fix one security issue are now available for
Red Hat Enterprise Linux 6.

The Red Hat Security Response Team has rated this update as having
Important 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 Enterprise Linux Desktop (v. 6) - i386, x86_64
Red Hat Enterprise Linux Desktop Optional (v. 6) - i386, x86_64
Red Hat Enterprise Linux HPC Node (v. 6) - x86_64
Red Hat Enterprise Linux HPC Node Optional (v. 6) - x86_64
Red Hat Enterprise Linux Server (v. 6) - i386, ppc64, s390x, x86_64
Red Hat Enterprise Linux Server Optional (v. 6) - i386, ppc64, s390x, x86_64
Red Hat Enterprise Linux Workstation (v. 6) - i386, x86_64
Red Hat Enterprise Linux Workstation Optional (v. 6) - i386, x86_64

3. Description:

OpenSSL is a toolkit that implements the Secure Sockets Layer (SSL v2/v3)
and Transport Layer Security (TLS v1) protocols, as well as a
full-strength, general purpose cryptography library.

An information disclosure flaw was found in the way OpenSSL handled TLS and
DTLS Heartbeat Extension packets. A malicious TLS or DTLS client or server
could send a specially crafted TLS or DTLS Heartbeat packet to disclose a
limited portion of memory per request from a connected client or server.
Note that the disclosed portions of memory could potentially include
sensitive information such as private keys. (CVE-2014-0160)

Red Hat would like to thank the OpenSSL project for reporting this issue.
Upstream acknowledges Neel Mehta of Google Security as the original
reporter.

All OpenSSL users are advised to upgrade to these updated packages, which
contain a backported patch to correct this issue. For the update to take
effect, all services linked to the OpenSSL library (such as httpd and other
SSL-enabled services) must be restarted or the system rebooted.

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/site/articles/11258

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

1084875 - CVE-2014-0160 openssl: information disclosure in handling of TLS heartbeat extension packets

6. Package List:

Red Hat Enterprise Linux Desktop (v. 6):

Source:
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6Client/en/os/SRPMS/openssl-1.0.1e-16.el6_5.7.src.rpm

i386:
openssl-1.0.1e-16.el6_5.7.i686.rpm
openssl-debuginfo-1.0.1e-16.el6_5.7.i686.rpm

x86_64:
openssl-1.0.1e-16.el6_5.7.i686.rpm
openssl-1.0.1e-16.el6_5.7.x86_64.rpm
openssl-debuginfo-1.0.1e-16.el6_5.7.i686.rpm
openssl-debuginfo-1.0.1e-16.el6_5.7.x86_64.rpm

Red Hat Enterprise Linux Desktop Optional (v. 6):

Source:
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6Client/en/os/SRPMS/openssl-1.0.1e-16.el6_5.7.src.rpm

i386:
openssl-debuginfo-1.0.1e-16.el6_5.7.i686.rpm
openssl-devel-1.0.1e-16.el6_5.7.i686.rpm
openssl-perl-1.0.1e-16.el6_5.7.i686.rpm
openssl-static-1.0.1e-16.el6_5.7.i686.rpm

x86_64:
openssl-debuginfo-1.0.1e-16.el6_5.7.i686.rpm
openssl-debuginfo-1.0.1e-16.el6_5.7.x86_64.rpm
openssl-devel-1.0.1e-16.el6_5.7.i686.rpm
openssl-devel-1.0.1e-16.el6_5.7.x86_64.rpm
openssl-perl-1.0.1e-16.el6_5.7.x86_64.rpm
openssl-static-1.0.1e-16.el6_5.7.x86_64.rpm

Red Hat Enterprise Linux HPC Node (v. 6):

Source:
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6ComputeNode/en/os/SRPMS/openssl-1.0.1e-16.el6_5.7.src.rpm

x86_64:
openssl-1.0.1e-16.el6_5.7.i686.rpm
openssl-1.0.1e-16.el6_5.7.x86_64.rpm
openssl-debuginfo-1.0.1e-16.el6_5.7.i686.rpm
openssl-debuginfo-1.0.1e-16.el6_5.7.x86_64.rpm

Red Hat Enterprise Linux HPC Node Optional (v. 6):

Source:
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6ComputeNode/en/os/SRPMS/openssl-1.0.1e-16.el6_5.7.src.rpm

x86_64:
openssl-debuginfo-1.0.1e-16.el6_5.7.i686.rpm
openssl-debuginfo-1.0.1e-16.el6_5.7.x86_64.rpm
openssl-devel-1.0.1e-16.el6_5.7.i686.rpm
openssl-devel-1.0.1e-16.el6_5.7.x86_64.rpm
openssl-perl-1.0.1e-16.el6_5.7.x86_64.rpm
openssl-static-1.0.1e-16.el6_5.7.x86_64.rpm

Red Hat Enterprise Linux Server (v. 6):

Source:
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6Server/en/os/SRPMS/openssl-1.0.1e-16.el6_5.7.src.rpm

i386:
openssl-1.0.1e-16.el6_5.7.i686.rpm
openssl-debuginfo-1.0.1e-16.el6_5.7.i686.rpm
openssl-devel-1.0.1e-16.el6_5.7.i686.rpm

ppc64:
openssl-1.0.1e-16.el6_5.7.ppc.rpm
openssl-1.0.1e-16.el6_5.7.ppc64.rpm
openssl-debuginfo-1.0.1e-16.el6_5.7.ppc.rpm
openssl-debuginfo-1.0.1e-16.el6_5.7.ppc64.rpm
openssl-devel-1.0.1e-16.el6_5.7.ppc.rpm
openssl-devel-1.0.1e-16.el6_5.7.ppc64.rpm

s390x:
openssl-1.0.1e-16.el6_5.7.s390.rpm
openssl-1.0.1e-16.el6_5.7.s390x.rpm
openssl-debuginfo-1.0.1e-16.el6_5.7.s390.rpm
openssl-debuginfo-1.0.1e-16.el6_5.7.s390x.rpm
openssl-devel-1.0.1e-16.el6_5.7.s390.rpm
openssl-devel-1.0.1e-16.el6_5.7.s390x.rpm

x86_64:
openssl-1.0.1e-16.el6_5.7.i686.rpm
openssl-1.0.1e-16.el6_5.7.x86_64.rpm
openssl-debuginfo-1.0.1e-16.el6_5.7.i686.rpm
openssl-debuginfo-1.0.1e-16.el6_5.7.x86_64.rpm
openssl-devel-1.0.1e-16.el6_5.7.i686.rpm
openssl-devel-1.0.1e-16.el6_5.7.x86_64.rpm

Red Hat Enterprise Linux Server Optional (v. 6):

Source:
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6Server/en/os/SRPMS/openssl-1.0.1e-16.el6_5.7.src.rpm

i386:
openssl-debuginfo-1.0.1e-16.el6_5.7.i686.rpm
openssl-perl-1.0.1e-16.el6_5.7.i686.rpm
openssl-static-1.0.1e-16.el6_5.7.i686.rpm

ppc64:
openssl-debuginfo-1.0.1e-16.el6_5.7.ppc64.rpm
openssl-perl-1.0.1e-16.el6_5.7.ppc64.rpm
openssl-static-1.0.1e-16.el6_5.7.ppc64.rpm

s390x:
openssl-debuginfo-1.0.1e-16.el6_5.7.s390x.rpm
openssl-perl-1.0.1e-16.el6_5.7.s390x.rpm
openssl-static-1.0.1e-16.el6_5.7.s390x.rpm

x86_64:
openssl-debuginfo-1.0.1e-16.el6_5.7.x86_64.rpm
openssl-perl-1.0.1e-16.el6_5.7.x86_64.rpm
openssl-static-1.0.1e-16.el6_5.7.x86_64.rpm

Red Hat Enterprise Linux Workstation (v. 6):

Source:
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6Workstation/en/os/SRPMS/openssl-1.0.1e-16.el6_5.7.src.rpm

i386:
openssl-1.0.1e-16.el6_5.7.i686.rpm
openssl-debuginfo-1.0.1e-16.el6_5.7.i686.rpm
openssl-devel-1.0.1e-16.el6_5.7.i686.rpm

x86_64:
openssl-1.0.1e-16.el6_5.7.i686.rpm
openssl-1.0.1e-16.el6_5.7.x86_64.rpm
openssl-debuginfo-1.0.1e-16.el6_5.7.i686.rpm
openssl-debuginfo-1.0.1e-16.el6_5.7.x86_64.rpm
openssl-devel-1.0.1e-16.el6_5.7.i686.rpm
openssl-devel-1.0.1e-16.el6_5.7.x86_64.rpm

Red Hat Enterprise Linux Workstation Optional (v. 6):

Source:
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6Workstation/en/os/SRPMS/openssl-1.0.1e-16.el6_5.7.src.rpm

i386:
openssl-debuginfo-1.0.1e-16.el6_5.7.i686.rpm
openssl-perl-1.0.1e-16.el6_5.7.i686.rpm
openssl-static-1.0.1e-16.el6_5.7.i686.rpm

x86_64:
openssl-debuginfo-1.0.1e-16.el6_5.7.x86_64.rpm
openssl-perl-1.0.1e-16.el6_5.7.x86_64.rpm
openssl-static-1.0.1e-16.el6_5.7.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-2014-0160.html
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 2014 Red Hat, Inc.
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