Moderate

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             AUSCERT External Security Bulletin Redistribution

                         ESB-2008.0658 -- [RedHat]
 Moderate: Red Hat Network Satellite Server Solaris client security update
                                1 July 2008

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

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

Product:              Red Hat Network Satellite Server Solaris client
Publisher:            Red Hat
Operating System:     Red Hat Linux 4
                      Red Hat Linux 3
Impact:               Execute Arbitrary Code/Commands
                      Increased Privileges
                      Denial of Service
                      Read-only Data Access
Access:               Remote/Unauthenticated
CVE Names:            CVE-2007-4965 CVE-2007-2052 CVE-2006-4980
                      CVE-2006-4343 CVE-2006-4339 CVE-2006-3738
                      CVE-2006-2940 CVE-2006-2937 CVE-2006-1542
                      CVE-2005-2969 CVE-2005-2096 CVE-2005-1849

Ref:                  ESB-2008.0552
                      AL-2006.0084

Original Bulletin:    https://rhn.redhat.com/errata/RHSA-2008-0525.html

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                   Red Hat Security Advisory

Synopsis:          Moderate: Red Hat Network Satellite Server Solaris client security update
Advisory ID:       RHSA-2008:0525-01
Product:           Red Hat Network Satellite Server
Advisory URL:      https://rhn.redhat.com/errata/RHSA-2008-0525.html
Issue date:        2008-06-30
CVE Names:         CVE-2005-2096 CVE-2005-1849 CVE-2006-4343 
                   CVE-2006-4339 CVE-2006-3738 CVE-2006-2940 
                   CVE-2006-2937 CVE-2005-2969 CVE-2007-4965 
                   CVE-2007-2052 CVE-2006-4980 CVE-2006-1542 
=====================================================================

1. Summary:

Red Hat Network Satellite Server version 4.2.3 is now available. This
update includes fixes for a number of security issues in Red Hat Network
Satellite Server Solaris client components.

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

2. Relevant releases/architectures:

Red Hat Network Satellite Server v 4.2 (RHEL v.3 AS) - noarch
Red Hat Network Satellite Server v 4.2 (RHEL v.4 AS) - noarch

3. Description:

This release corrects several security vulnerabilities in various
components shipped as part of the Red Hat Network Satellite Server Solaris
client. In a typical operating environment, these components are not used
by the Satellite Server in a vulnerable manner. These security updates will
reduce risk should these components be used by other applications.

Several flaws in Zlib was discovered. An attacker could create a
carefully-crafted compressed stream that would cause an application to
crash if the stream is opened by a user. (CVE-2005-2096).  An attacker
could create a carefully crafted compressed stream that would cause an
application to crash if the stream is opened by a user. (CVE-2005-1849)

A buffer overflow was discovered in the OpenSSL SSL_get_shared_ciphers()
utility function. An attacker could send a list of ciphers to an
application that used this function and overrun a buffer (CVE-2006-3738).

A flaw in the SSLv2 client code was discovered. If a client application
used OpenSSL to create an SSLv2 connection to a malicious server, that
server could cause the client to crash. (CVE-2006-4343)

An attack on OpenSSL PKCS #1 v1.5 signatures was discovered. Where an RSA
key with exponent 3 is used it may be possible for an attacker to forge a
PKCS #1 v1.5 signature that would be incorrectly verified by
implementations that do not check for excess data in the RSA exponentiation
result of the signature. This issue affected applications that use OpenSSL
to verify X.509 certificates as well as other uses of PKCS #1 v1.5.
(CVE-2006-4339)

OpenSSL contained a software work-around for a bug in SSL handling in
Microsoft Internet Explorer version 3.0.2. It is enabled in most servers
that use OpenSSL to provide support for SSL and TLS. This work-around could
allow an attacker, acting as a "man in the middle" to force an SSL
connection to use SSL 2.0 rather than a stronger protocol, such as SSL 3.0
or TLS 1.0. (CVE-2005-2969)

During OpenSSL parsing of certain invalid ASN.1 structures an error
condition was mishandled. This can result in an infinite loop which
consumed system memory (CVE-2006-2937). 

Certain public key types can take disproportionate amounts of time to
process in OpenSSL, leading to a denial of service. (CVE-2006-2940)

A flaw was discovered in the way that the Python repr() function handled
UTF-32/UCS-4 strings. If an application written in Python used the repr()
function on untrusted data, this could lead to a denial of service or
possibly allow the execution of arbitrary code with the privileges of the
Python application. (CVE-2006-4980)

A flaw was discovered in the strxfrm() function of Python's locale module.
Strings generated by this function were not properly NULL-terminated. This
may possibly cause disclosure of data stored in the memory of a Python
application using this function. (CVE-2007-2052)

Multiple integer overflow flaws were discovered in Python's imageop module.
If an application written in Python used the imageop module to process
untrusted images, it could cause the application to crash, enter an
infinite loop, or possibly execute arbitrary code with the privileges of
the Python interpreter. (CVE-2007-4965)

A stack-based buffer overflow was discovered in the Python interpreter,
which could allow a local user to gain privileges by running a script with
a long name from the current working directory. (CVE-2006-1542)

Users of Red Hat Network Satellite Server should upgrade to these updated
packages, which contain backported patches to correct these issues. 

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/FAQ_58_10188

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

235093 - CVE-2007-2052 python off-by-one locale.strxfrm() (possible memory disclosure)
295971 - CVE-2007-4965 python imageop module heap corruption
430640 - CVE-2006-1542 python buffer overflow
430641 - CVE-2006-4980 python repr unicode buffer overflow
430649 - CVE-2005-1849 zlib DoS
430650 - CVE-2005-2096 zlib DoS
430651 - CVE-2006-4343 openssl sslv2 client code
430652 - CVE-2006-3738 openssl get_shared_ciphers overflow
430654 - CVE-2006-2940 openssl public key DoS
430655 - CVE-2006-2937 openssl ASN.1 DoS
430659 - CVE-2006-4339 openssl signature forgery
430660 - CVE-2005-2969 openssl mitm downgrade attack

6. Package List:

Red Hat Network Satellite Server v 4.2 (RHEL v.3 AS):

noarch:
rhn-solaris-bootstrap-5.0.2-3.noarch.rpm
rhn_solaris_bootstrap_5_0_2_3-1-0.noarch.rpm

Red Hat Network Satellite Server v 4.2 (RHEL v.4 AS):

noarch:
rhn-solaris-bootstrap-5.0.2-3.noarch.rpm
rhn_solaris_bootstrap_5_0_2_3-1-0.noarch.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:

http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2005-2096
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2005-1849
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-4343
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-4339
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-3738
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-2940
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-2937
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2005-2969
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-4965
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-2052
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-4980
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-1542
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 2008 Red Hat, Inc.
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