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             AUSCERT External Security Bulletin Redistribution

                               ESB-2010.0059
                     Moderate: openssl security update
                              20 January 2010

===========================================================================

        AusCERT Security Bulletin Summary
        ---------------------------------

Product:           openssl
Publisher:         Red Hat
Operating System:  Red Hat Enterprise Linux Server 5
Impact/Access:     Denial of Service              -- Remote/Unauthenticated
                   Provide Misleading Information -- Remote/Unauthenticated
Resolution:        Patch/Upgrade
CVE Names:         CVE-2009-4355 CVE-2009-2409 

Reference:         ESB-2010.0034

Original Bulletin: 
   https://rhn.redhat.com/errata/RHSA-2010-0054.html

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                   Red Hat Security Advisory

Synopsis:          Moderate: openssl security update
Advisory ID:       RHSA-2010:0054-01
Product:           Red Hat Enterprise Linux
Advisory URL:      https://rhn.redhat.com/errata/RHSA-2010-0054.html
Issue date:        2010-01-19
CVE Names:         CVE-2009-2409 CVE-2009-4355 
=====================================================================

1. Summary:

Updated openssl packages that fix two security issues are now available for
Red Hat Enterprise Linux 5.

This update has been rated as having moderate security impact by the Red
Hat Security Response Team.

2. Relevant releases/architectures:

RHEL Desktop Workstation (v. 5 client) - i386, x86_64
Red Hat Enterprise Linux (v. 5 server) - i386, ia64, ppc, s390x, x86_64
Red Hat Enterprise Linux Desktop (v. 5 client) - 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.

It was found that the OpenSSL library did not properly re-initialize its
internal state in the SSL_library_init() function after previous calls to
the CRYPTO_cleanup_all_ex_data() function, which would cause a memory leak
for each subsequent SSL connection. This flaw could cause server
applications that call those functions during reload, such as a combination
of the Apache HTTP Server, mod_ssl, PHP, and cURL, to consume all available
memory, resulting in a denial of service. (CVE-2009-4355)

Dan Kaminsky found that browsers could accept certificates with MD2 hash
signatures, even though MD2 is no longer considered a cryptographically
strong algorithm. This could make it easier for an attacker to create a
malicious certificate that would be treated as trusted by a browser.
OpenSSL now disables the use of the MD2 algorithm inside signatures by
default. (CVE-2009-2409)

All OpenSSL users should upgrade to these updated packages, which contain
backported patches to resolve these issues. For the update to take effect,
all services linked to the OpenSSL library must be restarted, or the system
rebooted.

4. Solution:

Before applying this update, make sure that all previously-released
errata relevant to your system have been applied.

This update is available via Red Hat Network.  Details on how to use
the Red Hat Network to apply this update are available at
http://kbase.redhat.com/faq/docs/DOC-11259

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

510197 - CVE-2009-2409 deprecate MD2 in SSL cert validation (Kaminsky)
546707 - CVE-2009-4355 openssl significant memory leak in certain SSLv3 requests (DoS)

6. Package List:

Red Hat Enterprise Linux Desktop (v. 5 client):

Source:
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/5Client/en/os/SRPMS/openssl-0.9.8e-12.el5_4.1.src.rpm

i386:
openssl-0.9.8e-12.el5_4.1.i386.rpm
openssl-0.9.8e-12.el5_4.1.i686.rpm
openssl-debuginfo-0.9.8e-12.el5_4.1.i386.rpm
openssl-debuginfo-0.9.8e-12.el5_4.1.i686.rpm
openssl-perl-0.9.8e-12.el5_4.1.i386.rpm

x86_64:
openssl-0.9.8e-12.el5_4.1.i686.rpm
openssl-0.9.8e-12.el5_4.1.x86_64.rpm
openssl-debuginfo-0.9.8e-12.el5_4.1.i686.rpm
openssl-debuginfo-0.9.8e-12.el5_4.1.x86_64.rpm
openssl-perl-0.9.8e-12.el5_4.1.x86_64.rpm

RHEL Desktop Workstation (v. 5 client):

Source:
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/5Client/en/os/SRPMS/openssl-0.9.8e-12.el5_4.1.src.rpm

i386:
openssl-debuginfo-0.9.8e-12.el5_4.1.i386.rpm
openssl-devel-0.9.8e-12.el5_4.1.i386.rpm

x86_64:
openssl-debuginfo-0.9.8e-12.el5_4.1.i386.rpm
openssl-debuginfo-0.9.8e-12.el5_4.1.x86_64.rpm
openssl-devel-0.9.8e-12.el5_4.1.i386.rpm
openssl-devel-0.9.8e-12.el5_4.1.x86_64.rpm

Red Hat Enterprise Linux (v. 5 server):

Source:
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/5Server/en/os/SRPMS/openssl-0.9.8e-12.el5_4.1.src.rpm

i386:
openssl-0.9.8e-12.el5_4.1.i386.rpm
openssl-0.9.8e-12.el5_4.1.i686.rpm
openssl-debuginfo-0.9.8e-12.el5_4.1.i386.rpm
openssl-debuginfo-0.9.8e-12.el5_4.1.i686.rpm
openssl-devel-0.9.8e-12.el5_4.1.i386.rpm
openssl-perl-0.9.8e-12.el5_4.1.i386.rpm

ia64:
openssl-0.9.8e-12.el5_4.1.i686.rpm
openssl-0.9.8e-12.el5_4.1.ia64.rpm
openssl-debuginfo-0.9.8e-12.el5_4.1.i686.rpm
openssl-debuginfo-0.9.8e-12.el5_4.1.ia64.rpm
openssl-devel-0.9.8e-12.el5_4.1.ia64.rpm
openssl-perl-0.9.8e-12.el5_4.1.ia64.rpm

ppc:
openssl-0.9.8e-12.el5_4.1.ppc.rpm
openssl-0.9.8e-12.el5_4.1.ppc64.rpm
openssl-debuginfo-0.9.8e-12.el5_4.1.ppc.rpm
openssl-debuginfo-0.9.8e-12.el5_4.1.ppc64.rpm
openssl-devel-0.9.8e-12.el5_4.1.ppc.rpm
openssl-devel-0.9.8e-12.el5_4.1.ppc64.rpm
openssl-perl-0.9.8e-12.el5_4.1.ppc.rpm

s390x:
openssl-0.9.8e-12.el5_4.1.s390.rpm
openssl-0.9.8e-12.el5_4.1.s390x.rpm
openssl-debuginfo-0.9.8e-12.el5_4.1.s390.rpm
openssl-debuginfo-0.9.8e-12.el5_4.1.s390x.rpm
openssl-devel-0.9.8e-12.el5_4.1.s390.rpm
openssl-devel-0.9.8e-12.el5_4.1.s390x.rpm
openssl-perl-0.9.8e-12.el5_4.1.s390x.rpm

x86_64:
openssl-0.9.8e-12.el5_4.1.i686.rpm
openssl-0.9.8e-12.el5_4.1.x86_64.rpm
openssl-debuginfo-0.9.8e-12.el5_4.1.i386.rpm
openssl-debuginfo-0.9.8e-12.el5_4.1.i686.rpm
openssl-debuginfo-0.9.8e-12.el5_4.1.x86_64.rpm
openssl-devel-0.9.8e-12.el5_4.1.i386.rpm
openssl-devel-0.9.8e-12.el5_4.1.x86_64.rpm
openssl-perl-0.9.8e-12.el5_4.1.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://www.redhat.com/security/team/key/#package

7. References:

https://www.redhat.com/security/data/cve/CVE-2009-2409.html
https://www.redhat.com/security/data/cve/CVE-2009-4355.html
http://www.redhat.com/security/updates/classification/#moderate

8. Contact:

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

Copyright 2010 Red Hat, Inc.
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