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Red Hat Security Advisory 2014-0679-01

Red Hat Security Advisory 2014-0679-01
Posted Jun 11, 2014
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2014-0679-01 - OpenSSL is a toolkit that implements the Secure Sockets Layer and Transport Layer Security protocols, as well as a full-strength, general purpose cryptography library. It was found that OpenSSL clients and servers could be forced, via a specially crafted handshake packet, to use weak keying material for communication. A man-in-the-middle attacker could use this flaw to decrypt and modify traffic between a client and a server. Note: In order to exploit this flaw, both the server and the client must be using a vulnerable version of OpenSSL; the server must be using OpenSSL version 1.0.1 and above, and the client must be using any version of OpenSSL.

tags | advisory, protocol
systems | linux, redhat
advisories | CVE-2010-5298, CVE-2014-0195, CVE-2014-0198, CVE-2014-0221, CVE-2014-0224, CVE-2014-3470
MD5 | a56321fbeddd2e286f05e6ae2a51790c

Red Hat Security Advisory 2014-0679-01

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

Synopsis: Important: openssl security update
Advisory ID: RHSA-2014:0679-01
Product: Red Hat Enterprise Linux
Advisory URL: https://rhn.redhat.com/errata/RHSA-2014-0679.html
Issue date: 2014-06-10
CVE Names: CVE-2010-5298 CVE-2014-0195 CVE-2014-0198
CVE-2014-0221 CVE-2014-0224 CVE-2014-3470
=====================================================================

1. Summary:

Updated openssl packages that fix multiple security issues are now
available for Red Hat Enterprise Linux 7.

The Red Hat Security Response Team has rated this update as having
Important security impact. Common Vulnerability Scoring System (CVSS) base
scores, which give detailed severity ratings, are available for each
vulnerability from the CVE links in the References section.

2. Relevant releases/architectures:

Red Hat Enterprise Linux Client (v. 7) - x86_64
Red Hat Enterprise Linux Client Optional (v. 7) - x86_64
Red Hat Enterprise Linux ComputeNode (v. 7) - x86_64
Red Hat Enterprise Linux ComputeNode Optional (v. 7) - x86_64
Red Hat Enterprise Linux Server (v. 7) - ppc64, s390x, x86_64
Red Hat Enterprise Linux Server Optional (v. 7) - ppc64, s390x, x86_64
Red Hat Enterprise Linux Workstation (v. 7) - x86_64
Red Hat Enterprise Linux Workstation Optional (v. 7) - 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.

It was found that OpenSSL clients and servers could be forced, via a
specially crafted handshake packet, to use weak keying material for
communication. A man-in-the-middle attacker could use this flaw to decrypt
and modify traffic between a client and a server. (CVE-2014-0224)

Note: In order to exploit this flaw, both the server and the client must be
using a vulnerable version of OpenSSL; the server must be using OpenSSL
version 1.0.1 and above, and the client must be using any version of
OpenSSL. For more information about this flaw, refer to:
https://access.redhat.com/site/articles/904433

A buffer overflow flaw was found in the way OpenSSL handled invalid DTLS
packet fragments. A remote attacker could possibly use this flaw to execute
arbitrary code on a DTLS client or server. (CVE-2014-0195)

Multiple flaws were found in the way OpenSSL handled read and write buffers
when the SSL_MODE_RELEASE_BUFFERS mode was enabled. A TLS/SSL client or
server using OpenSSL could crash or unexpectedly drop connections when
processing certain SSL traffic. (CVE-2010-5298, CVE-2014-0198)

A denial of service flaw was found in the way OpenSSL handled certain DTLS
ServerHello requests. A specially crafted DTLS handshake packet could cause
a DTLS client using OpenSSL to crash. (CVE-2014-0221)

A NULL pointer dereference flaw was found in the way OpenSSL performed
anonymous Elliptic Curve Diffie Hellman (ECDH) key exchange. A specially
crafted handshake packet could cause a TLS/SSL client that has the
anonymous ECDH cipher suite enabled to crash. (CVE-2014-3470)

Red Hat would like to thank the OpenSSL project for reporting these issues.
Upstream acknowledges KIKUCHI Masashi of Lepidum as the original reporter
of CVE-2014-0224, Jüri Aedla as the original reporter of CVE-2014-0195,
Imre Rad of Search-Lab as the original reporter of CVE-2014-0221, and Felix
Gröbert and Ivan Fratrić of Google as the original reporters of
CVE-2014-3470.

All OpenSSL users are advised to upgrade to these updated packages, which
contain backported patches to correct these issues. 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/):

1087195 - CVE-2010-5298 openssl: freelist misuse causing a possible use-after-free
1093837 - CVE-2014-0198 openssl: SSL_MODE_RELEASE_BUFFERS NULL pointer dereference in do_ssl3_write()
1103586 - CVE-2014-0224 openssl: SSL/TLS MITM vulnerability
1103593 - CVE-2014-0221 openssl: DoS when sending invalid DTLS handshake
1103598 - CVE-2014-0195 openssl: Buffer overflow via DTLS invalid fragment
1103600 - CVE-2014-3470 openssl: client-side denial of service when using anonymous ECDH

6. Package List:

Red Hat Enterprise Linux Client (v. 7):

Source:
openssl-1.0.1e-34.el7_0.3.src.rpm

x86_64:
openssl-1.0.1e-34.el7_0.3.x86_64.rpm
openssl-debuginfo-1.0.1e-34.el7_0.3.i686.rpm
openssl-debuginfo-1.0.1e-34.el7_0.3.x86_64.rpm
openssl-libs-1.0.1e-34.el7_0.3.i686.rpm
openssl-libs-1.0.1e-34.el7_0.3.x86_64.rpm

Red Hat Enterprise Linux Client Optional (v. 7):

x86_64:
openssl-debuginfo-1.0.1e-34.el7_0.3.i686.rpm
openssl-debuginfo-1.0.1e-34.el7_0.3.x86_64.rpm
openssl-devel-1.0.1e-34.el7_0.3.i686.rpm
openssl-devel-1.0.1e-34.el7_0.3.x86_64.rpm
openssl-perl-1.0.1e-34.el7_0.3.x86_64.rpm
openssl-static-1.0.1e-34.el7_0.3.i686.rpm
openssl-static-1.0.1e-34.el7_0.3.x86_64.rpm

Red Hat Enterprise Linux ComputeNode (v. 7):

Source:
openssl-1.0.1e-34.el7_0.3.src.rpm

x86_64:
openssl-1.0.1e-34.el7_0.3.x86_64.rpm
openssl-debuginfo-1.0.1e-34.el7_0.3.i686.rpm
openssl-debuginfo-1.0.1e-34.el7_0.3.x86_64.rpm
openssl-libs-1.0.1e-34.el7_0.3.i686.rpm
openssl-libs-1.0.1e-34.el7_0.3.x86_64.rpm

Red Hat Enterprise Linux ComputeNode Optional (v. 7):

x86_64:
openssl-debuginfo-1.0.1e-34.el7_0.3.i686.rpm
openssl-debuginfo-1.0.1e-34.el7_0.3.x86_64.rpm
openssl-devel-1.0.1e-34.el7_0.3.i686.rpm
openssl-devel-1.0.1e-34.el7_0.3.x86_64.rpm
openssl-perl-1.0.1e-34.el7_0.3.x86_64.rpm
openssl-static-1.0.1e-34.el7_0.3.i686.rpm
openssl-static-1.0.1e-34.el7_0.3.x86_64.rpm

Red Hat Enterprise Linux Server (v. 7):

Source:
openssl-1.0.1e-34.el7_0.3.src.rpm

ppc64:
openssl-1.0.1e-34.el7_0.3.ppc64.rpm
openssl-debuginfo-1.0.1e-34.el7_0.3.ppc.rpm
openssl-debuginfo-1.0.1e-34.el7_0.3.ppc64.rpm
openssl-devel-1.0.1e-34.el7_0.3.ppc.rpm
openssl-devel-1.0.1e-34.el7_0.3.ppc64.rpm
openssl-libs-1.0.1e-34.el7_0.3.ppc.rpm
openssl-libs-1.0.1e-34.el7_0.3.ppc64.rpm

s390x:
openssl-1.0.1e-34.el7_0.3.s390x.rpm
openssl-debuginfo-1.0.1e-34.el7_0.3.s390.rpm
openssl-debuginfo-1.0.1e-34.el7_0.3.s390x.rpm
openssl-devel-1.0.1e-34.el7_0.3.s390.rpm
openssl-devel-1.0.1e-34.el7_0.3.s390x.rpm
openssl-libs-1.0.1e-34.el7_0.3.s390.rpm
openssl-libs-1.0.1e-34.el7_0.3.s390x.rpm

x86_64:
openssl-1.0.1e-34.el7_0.3.x86_64.rpm
openssl-debuginfo-1.0.1e-34.el7_0.3.i686.rpm
openssl-debuginfo-1.0.1e-34.el7_0.3.x86_64.rpm
openssl-devel-1.0.1e-34.el7_0.3.i686.rpm
openssl-devel-1.0.1e-34.el7_0.3.x86_64.rpm
openssl-libs-1.0.1e-34.el7_0.3.i686.rpm
openssl-libs-1.0.1e-34.el7_0.3.x86_64.rpm

Red Hat Enterprise Linux Server Optional (v. 7):

ppc64:
openssl-debuginfo-1.0.1e-34.el7_0.3.ppc.rpm
openssl-debuginfo-1.0.1e-34.el7_0.3.ppc64.rpm
openssl-perl-1.0.1e-34.el7_0.3.ppc64.rpm
openssl-static-1.0.1e-34.el7_0.3.ppc.rpm
openssl-static-1.0.1e-34.el7_0.3.ppc64.rpm

s390x:
openssl-debuginfo-1.0.1e-34.el7_0.3.s390.rpm
openssl-debuginfo-1.0.1e-34.el7_0.3.s390x.rpm
openssl-perl-1.0.1e-34.el7_0.3.s390x.rpm
openssl-static-1.0.1e-34.el7_0.3.s390.rpm
openssl-static-1.0.1e-34.el7_0.3.s390x.rpm

x86_64:
openssl-debuginfo-1.0.1e-34.el7_0.3.i686.rpm
openssl-debuginfo-1.0.1e-34.el7_0.3.x86_64.rpm
openssl-perl-1.0.1e-34.el7_0.3.x86_64.rpm
openssl-static-1.0.1e-34.el7_0.3.i686.rpm
openssl-static-1.0.1e-34.el7_0.3.x86_64.rpm

Red Hat Enterprise Linux Workstation (v. 7):

Source:
openssl-1.0.1e-34.el7_0.3.src.rpm

x86_64:
openssl-1.0.1e-34.el7_0.3.x86_64.rpm
openssl-debuginfo-1.0.1e-34.el7_0.3.i686.rpm
openssl-debuginfo-1.0.1e-34.el7_0.3.x86_64.rpm
openssl-devel-1.0.1e-34.el7_0.3.i686.rpm
openssl-devel-1.0.1e-34.el7_0.3.x86_64.rpm
openssl-libs-1.0.1e-34.el7_0.3.i686.rpm
openssl-libs-1.0.1e-34.el7_0.3.x86_64.rpm

Red Hat Enterprise Linux Workstation Optional (v. 7):

x86_64:
openssl-debuginfo-1.0.1e-34.el7_0.3.i686.rpm
openssl-debuginfo-1.0.1e-34.el7_0.3.x86_64.rpm
openssl-perl-1.0.1e-34.el7_0.3.x86_64.rpm
openssl-static-1.0.1e-34.el7_0.3.i686.rpm
openssl-static-1.0.1e-34.el7_0.3.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-2010-5298.html
https://www.redhat.com/security/data/cve/CVE-2014-0195.html
https://www.redhat.com/security/data/cve/CVE-2014-0198.html
https://www.redhat.com/security/data/cve/CVE-2014-0221.html
https://www.redhat.com/security/data/cve/CVE-2014-0224.html
https://www.redhat.com/security/data/cve/CVE-2014-3470.html
https://access.redhat.com/security/updates/classification/#important
https://access.redhat.com/site/articles/904433
https://access.redhat.com/site/solutions/905793

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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