[RedHat] Mehrere Schwachstellen in OpenSSL - RHSA-2010:0163-01

WiN Site Security Contacts win-sec-ssc at lists.dfn-cert.de
Do Mär 25 16:50:12 CET 2010


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Liebe Kolleginnen und Kollegen,

soeben erreichte uns nachfolgendes RedHat Security Advisory. Wir geben
diese Informationen unveraendert an Sie weiter.


Mit diesem Update auf Version 0.9.8m verwendet OpenSSL eine RFC 5746
konforme Version der TLS Renegotiation Indication Extension, welche die
Designschwaeche behebt. Fruehere Updates (0.9.8l) haben die
Schwachstelle dadurch behoben, dass die TLS Renegotiation vollstaendig
deaktiviert wurde.


CVE-2009-3555 - Designschwaeche im SSLv3/TSLv1 Protokoll bei der
Renegotiation

  Bei der Neuaushandlung von Parametern in einer SSL oder TLS Session
  (Renegotiation) wird das Client Zertifikat geprueft. Allerdings ist es
  aufgrund einer Schwachstelle im TLS-Protokoll unter Umstaenden moeglich,
  dass vorher beliebige Daten in die TLS-Session eingeschleust werden. Dies
  ermoeglicht Man-in-the-Middle Angriffe auf die TLS-Session. Beim HTTPS
  Protokoll kann ein Angreifer so den HTTP-Request des Benutzers faelschen.
  
  Dies kann ein Angreifer dazu ausnutzen, um an vertrauliche Daten zu
  gelangen, Operationen mit den Rechten des Benutzers auf dem Server
  auszufuehren, dem Benutzer falsche Informationen anzuzeigen.
  
  Diese Schwachstelle wird bereits aktiv von Angreifern ausgenutzt.

CVE-2009-2409 - Verwendung des MD2 Algorithmus in Crypto-Bibliotheken

  Die Netscape Security Services (NSS) Bibliothek, ebenso OpenSSL und
  GnuTLS, erlaubt die Verwendung Zertifikaten, bei denen fuer
  Hash-Pruefsummen der MD2 Algorithmus verwendet wird. Da MD2 nicht mehr
  als sicherer Algorithmus gilt, koennte dies Angreifern erleichtern,
  Zertifikate zu faelschen und so an vertrauliche Informationen zu gelangen.

CVE-2009-0590 - Schwachstelle in der OpenSSL Funktion
ASN1_STRING_print_ex()

  OpenSSL Anwendungen die den Inhalt von Zertifikaten ausgeben, u.a. SSL
  Server, Clients und S/MIME Software, haben eine Schwachstelle in der
  Funktion ASN1_STRING_print_ex(). Ein Funktionsaufruf zur Ausgabe eines
  BMPString oder UniversalString mit einer Zeichenkette unzulaessiger
  Laenge loest eine Speicherverletzung aus. Ein Angreifer kann diese
  Schwachstelle ausnutzen um die Anwendung zum Absturz zu bringen.

Betroffen sind die folgenden Software Pakete und Plattformen:

  Paket openssl

  Red Hat Desktop version 3 - i386, x86_64
  Red Hat Enterprise Linux AS version 3 - i386, ia64, ppc, s390, s390x,
  x86_64
  Red Hat Enterprise Linux AS version 4 - i386, ia64, ppc, s390, s390x,
  x86_64
  Red Hat Enterprise Linux Desktop version 4 - i386, x86_64
  Red Hat Enterprise Linux ES version 3 - i386, ia64, x86_64
  Red Hat Enterprise Linux ES version 4 - i386, ia64, x86_64
  Red Hat Enterprise Linux WS version 3 - i386, ia64, x86_64
  Red Hat Enterprise Linux WS version 4 - i386, ia64, x86_64

Vom Hersteller werden ueberarbeitete Pakete zur Verfuegung gestellt.

Hersteller Advisory:
  https://rhn.redhat.com/errata/RHSA-2010-0163.html


(c) der deutschen Zusammenfassung bei DFN-CERT Services GmbH; die
Verbreitung, auch auszugsweise, ist nur unter Hinweis auf den Urheber,
DFN-CERT Services GmbH, und nur zu nicht kommerziellen Zwecken
gestattet.

Mit freundlichen Gruessen,
		Klaus Möller, DFN-CERT

- -- 
Dipl. Inform. Klaus Moeller (Project Development Team)
Phone: +49 40 808077-555, Fax: +49 40 808077-556

DFN-CERT Services GmbH, https://www.dfn-cert.de/, Phone  +49 40 808077-555
Sitz / Register: Hamburg, AG Hamburg, HRB 88805,  Ust-IdNr.:  DE 232129737
Sachsenstrasse 5, 20097 Hamburg/Germany, CEO: Dr. Klaus-Peter Kossakowski

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

Synopsis:          Moderate: openssl security update
Advisory ID:       RHSA-2010:0163-01
Product:           Red Hat Enterprise Linux
Advisory URL:      https://rhn.redhat.com/errata/RHSA-2010-0163.html
Issue date:        2010-03-25
CVE Names:         CVE-2009-0590 CVE-2009-2409 CVE-2009-3555 
=====================================================================

1. Summary:

Updated openssl packages that fix several security issues are now available
for Red Hat Enterprise Linux 3 and 4.

The Red Hat Security Response Team has rated this update as having moderate
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 Desktop version 3 - i386, x86_64
Red Hat Enterprise Linux AS version 3 - i386, ia64, ppc, s390, s390x, x86_64
Red Hat Enterprise Linux AS version 4 - i386, ia64, ppc, s390, s390x, x86_64
Red Hat Enterprise Linux Desktop version 4 - i386, x86_64
Red Hat Enterprise Linux ES version 3 - i386, ia64, x86_64
Red Hat Enterprise Linux ES version 4 - i386, ia64, x86_64
Red Hat Enterprise Linux WS version 3 - i386, ia64, x86_64
Red Hat Enterprise Linux WS version 4 - i386, ia64, 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.

A flaw was found in the way the TLS/SSL (Transport Layer Security/Secure
Sockets Layer) protocols handled session renegotiation. A man-in-the-middle
attacker could use this flaw to prefix arbitrary plain text to a client's
session (for example, an HTTPS connection to a website). This could force
the server to process an attacker's request as if authenticated using the
victim's credentials. This update addresses this flaw by implementing the
TLS Renegotiation Indication Extension, as defined in RFC 5746.
(CVE-2009-3555)

Refer to the following Knowledgebase article for additional details about
the CVE-2009-3555 flaw: http://kbase.redhat.com/faq/docs/DOC-20491

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)

An input validation flaw was found in the handling of the BMPString and
UniversalString ASN1 string types in OpenSSL's ASN1_STRING_print_ex()
function. An attacker could use this flaw to create a specially-crafted
X.509 certificate that could cause applications using the affected function
to crash when printing certificate contents. (CVE-2009-0590)

Note: The affected function is rarely used. No application shipped with Red
Hat Enterprise Linux calls this function, for example.

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 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
http://kbase.redhat.com/faq/docs/DOC-11259

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

492304 - CVE-2009-0590 openssl: ASN1 printing crash
510197 - CVE-2009-2409 deprecate MD2 in SSL cert validation (Kaminsky)
533125 - CVE-2009-3555 TLS: MITM attacks via session renegotiation

6. Package List:

Red Hat Enterprise Linux AS version 3:

Source:
ftp://updates.redhat.com/enterprise/3AS/en/os/SRPMS/openssl-0.9.7a-33.26.src.rpm

i386:
openssl-0.9.7a-33.26.i386.rpm
openssl-0.9.7a-33.26.i686.rpm
openssl-debuginfo-0.9.7a-33.26.i386.rpm
openssl-debuginfo-0.9.7a-33.26.i686.rpm
openssl-devel-0.9.7a-33.26.i386.rpm
openssl-perl-0.9.7a-33.26.i386.rpm

ia64:
openssl-0.9.7a-33.26.i686.rpm
openssl-0.9.7a-33.26.ia64.rpm
openssl-debuginfo-0.9.7a-33.26.i686.rpm
openssl-debuginfo-0.9.7a-33.26.ia64.rpm
openssl-devel-0.9.7a-33.26.ia64.rpm
openssl-perl-0.9.7a-33.26.ia64.rpm

ppc:
openssl-0.9.7a-33.26.ppc.rpm
openssl-0.9.7a-33.26.ppc64.rpm
openssl-debuginfo-0.9.7a-33.26.ppc.rpm
openssl-debuginfo-0.9.7a-33.26.ppc64.rpm
openssl-devel-0.9.7a-33.26.ppc.rpm
openssl-perl-0.9.7a-33.26.ppc.rpm

s390:
openssl-0.9.7a-33.26.s390.rpm
openssl-debuginfo-0.9.7a-33.26.s390.rpm
openssl-devel-0.9.7a-33.26.s390.rpm
openssl-perl-0.9.7a-33.26.s390.rpm

s390x:
openssl-0.9.7a-33.26.s390.rpm
openssl-0.9.7a-33.26.s390x.rpm
openssl-debuginfo-0.9.7a-33.26.s390.rpm
openssl-debuginfo-0.9.7a-33.26.s390x.rpm
openssl-devel-0.9.7a-33.26.s390x.rpm
openssl-perl-0.9.7a-33.26.s390x.rpm

x86_64:
openssl-0.9.7a-33.26.i686.rpm
openssl-0.9.7a-33.26.x86_64.rpm
openssl-debuginfo-0.9.7a-33.26.i686.rpm
openssl-debuginfo-0.9.7a-33.26.x86_64.rpm
openssl-devel-0.9.7a-33.26.x86_64.rpm
openssl-perl-0.9.7a-33.26.x86_64.rpm

Red Hat Desktop version 3:

Source:
ftp://updates.redhat.com/enterprise/3desktop/en/os/SRPMS/openssl-0.9.7a-33.26.src.rpm

i386:
openssl-0.9.7a-33.26.i386.rpm
openssl-0.9.7a-33.26.i686.rpm
openssl-debuginfo-0.9.7a-33.26.i386.rpm
openssl-debuginfo-0.9.7a-33.26.i686.rpm
openssl-devel-0.9.7a-33.26.i386.rpm
openssl-perl-0.9.7a-33.26.i386.rpm

x86_64:
openssl-0.9.7a-33.26.i686.rpm
openssl-0.9.7a-33.26.x86_64.rpm
openssl-debuginfo-0.9.7a-33.26.i686.rpm
openssl-debuginfo-0.9.7a-33.26.x86_64.rpm
openssl-devel-0.9.7a-33.26.x86_64.rpm
openssl-perl-0.9.7a-33.26.x86_64.rpm

Red Hat Enterprise Linux ES version 3:

Source:
ftp://updates.redhat.com/enterprise/3ES/en/os/SRPMS/openssl-0.9.7a-33.26.src.rpm

i386:
openssl-0.9.7a-33.26.i386.rpm
openssl-0.9.7a-33.26.i686.rpm
openssl-debuginfo-0.9.7a-33.26.i386.rpm
openssl-debuginfo-0.9.7a-33.26.i686.rpm
openssl-devel-0.9.7a-33.26.i386.rpm
openssl-perl-0.9.7a-33.26.i386.rpm

ia64:
openssl-0.9.7a-33.26.i686.rpm
openssl-0.9.7a-33.26.ia64.rpm
openssl-debuginfo-0.9.7a-33.26.i686.rpm
openssl-debuginfo-0.9.7a-33.26.ia64.rpm
openssl-devel-0.9.7a-33.26.ia64.rpm
openssl-perl-0.9.7a-33.26.ia64.rpm

x86_64:
openssl-0.9.7a-33.26.i686.rpm
openssl-0.9.7a-33.26.x86_64.rpm
openssl-debuginfo-0.9.7a-33.26.i686.rpm
openssl-debuginfo-0.9.7a-33.26.x86_64.rpm
openssl-devel-0.9.7a-33.26.x86_64.rpm
openssl-perl-0.9.7a-33.26.x86_64.rpm

Red Hat Enterprise Linux WS version 3:

Source:
ftp://updates.redhat.com/enterprise/3WS/en/os/SRPMS/openssl-0.9.7a-33.26.src.rpm

i386:
openssl-0.9.7a-33.26.i386.rpm
openssl-0.9.7a-33.26.i686.rpm
openssl-debuginfo-0.9.7a-33.26.i386.rpm
openssl-debuginfo-0.9.7a-33.26.i686.rpm
openssl-devel-0.9.7a-33.26.i386.rpm
openssl-perl-0.9.7a-33.26.i386.rpm

ia64:
openssl-0.9.7a-33.26.i686.rpm
openssl-0.9.7a-33.26.ia64.rpm
openssl-debuginfo-0.9.7a-33.26.i686.rpm
openssl-debuginfo-0.9.7a-33.26.ia64.rpm
openssl-devel-0.9.7a-33.26.ia64.rpm
openssl-perl-0.9.7a-33.26.ia64.rpm

x86_64:
openssl-0.9.7a-33.26.i686.rpm
openssl-0.9.7a-33.26.x86_64.rpm
openssl-debuginfo-0.9.7a-33.26.i686.rpm
openssl-debuginfo-0.9.7a-33.26.x86_64.rpm
openssl-devel-0.9.7a-33.26.x86_64.rpm
openssl-perl-0.9.7a-33.26.x86_64.rpm

Red Hat Enterprise Linux AS version 4:

Source:
ftp://updates.redhat.com/enterprise/4AS/en/os/SRPMS/openssl-0.9.7a-43.17.el4_8.5.src.rpm

i386:
openssl-0.9.7a-43.17.el4_8.5.i386.rpm
openssl-0.9.7a-43.17.el4_8.5.i686.rpm
openssl-debuginfo-0.9.7a-43.17.el4_8.5.i386.rpm
openssl-debuginfo-0.9.7a-43.17.el4_8.5.i686.rpm
openssl-devel-0.9.7a-43.17.el4_8.5.i386.rpm
openssl-perl-0.9.7a-43.17.el4_8.5.i386.rpm

ia64:
openssl-0.9.7a-43.17.el4_8.5.i686.rpm
openssl-0.9.7a-43.17.el4_8.5.ia64.rpm
openssl-debuginfo-0.9.7a-43.17.el4_8.5.i686.rpm
openssl-debuginfo-0.9.7a-43.17.el4_8.5.ia64.rpm
openssl-devel-0.9.7a-43.17.el4_8.5.ia64.rpm
openssl-perl-0.9.7a-43.17.el4_8.5.ia64.rpm

ppc:
openssl-0.9.7a-43.17.el4_8.5.ppc.rpm
openssl-0.9.7a-43.17.el4_8.5.ppc64.rpm
openssl-debuginfo-0.9.7a-43.17.el4_8.5.ppc.rpm
openssl-debuginfo-0.9.7a-43.17.el4_8.5.ppc64.rpm
openssl-devel-0.9.7a-43.17.el4_8.5.ppc.rpm
openssl-devel-0.9.7a-43.17.el4_8.5.ppc64.rpm
openssl-perl-0.9.7a-43.17.el4_8.5.ppc.rpm

s390:
openssl-0.9.7a-43.17.el4_8.5.s390.rpm
openssl-debuginfo-0.9.7a-43.17.el4_8.5.s390.rpm
openssl-devel-0.9.7a-43.17.el4_8.5.s390.rpm
openssl-perl-0.9.7a-43.17.el4_8.5.s390.rpm

s390x:
openssl-0.9.7a-43.17.el4_8.5.s390.rpm
openssl-0.9.7a-43.17.el4_8.5.s390x.rpm
openssl-debuginfo-0.9.7a-43.17.el4_8.5.s390.rpm
openssl-debuginfo-0.9.7a-43.17.el4_8.5.s390x.rpm
openssl-devel-0.9.7a-43.17.el4_8.5.s390.rpm
openssl-devel-0.9.7a-43.17.el4_8.5.s390x.rpm
openssl-perl-0.9.7a-43.17.el4_8.5.s390x.rpm

x86_64:
openssl-0.9.7a-43.17.el4_8.5.i686.rpm
openssl-0.9.7a-43.17.el4_8.5.x86_64.rpm
openssl-debuginfo-0.9.7a-43.17.el4_8.5.i386.rpm
openssl-debuginfo-0.9.7a-43.17.el4_8.5.i686.rpm
openssl-debuginfo-0.9.7a-43.17.el4_8.5.x86_64.rpm
openssl-devel-0.9.7a-43.17.el4_8.5.i386.rpm
openssl-devel-0.9.7a-43.17.el4_8.5.x86_64.rpm
openssl-perl-0.9.7a-43.17.el4_8.5.x86_64.rpm

Red Hat Enterprise Linux Desktop version 4:

Source:
ftp://updates.redhat.com/enterprise/4Desktop/en/os/SRPMS/openssl-0.9.7a-43.17.el4_8.5.src.rpm

i386:
openssl-0.9.7a-43.17.el4_8.5.i386.rpm
openssl-0.9.7a-43.17.el4_8.5.i686.rpm
openssl-debuginfo-0.9.7a-43.17.el4_8.5.i386.rpm
openssl-debuginfo-0.9.7a-43.17.el4_8.5.i686.rpm
openssl-devel-0.9.7a-43.17.el4_8.5.i386.rpm
openssl-perl-0.9.7a-43.17.el4_8.5.i386.rpm

x86_64:
openssl-0.9.7a-43.17.el4_8.5.i686.rpm
openssl-0.9.7a-43.17.el4_8.5.x86_64.rpm
openssl-debuginfo-0.9.7a-43.17.el4_8.5.i386.rpm
openssl-debuginfo-0.9.7a-43.17.el4_8.5.i686.rpm
openssl-debuginfo-0.9.7a-43.17.el4_8.5.x86_64.rpm
openssl-devel-0.9.7a-43.17.el4_8.5.i386.rpm
openssl-devel-0.9.7a-43.17.el4_8.5.x86_64.rpm
openssl-perl-0.9.7a-43.17.el4_8.5.x86_64.rpm

Red Hat Enterprise Linux ES version 4:

Source:
ftp://updates.redhat.com/enterprise/4ES/en/os/SRPMS/openssl-0.9.7a-43.17.el4_8.5.src.rpm

i386:
openssl-0.9.7a-43.17.el4_8.5.i386.rpm
openssl-0.9.7a-43.17.el4_8.5.i686.rpm
openssl-debuginfo-0.9.7a-43.17.el4_8.5.i386.rpm
openssl-debuginfo-0.9.7a-43.17.el4_8.5.i686.rpm
openssl-devel-0.9.7a-43.17.el4_8.5.i386.rpm
openssl-perl-0.9.7a-43.17.el4_8.5.i386.rpm

ia64:
openssl-0.9.7a-43.17.el4_8.5.i686.rpm
openssl-0.9.7a-43.17.el4_8.5.ia64.rpm
openssl-debuginfo-0.9.7a-43.17.el4_8.5.i686.rpm
openssl-debuginfo-0.9.7a-43.17.el4_8.5.ia64.rpm
openssl-devel-0.9.7a-43.17.el4_8.5.ia64.rpm
openssl-perl-0.9.7a-43.17.el4_8.5.ia64.rpm

x86_64:
openssl-0.9.7a-43.17.el4_8.5.i686.rpm
openssl-0.9.7a-43.17.el4_8.5.x86_64.rpm
openssl-debuginfo-0.9.7a-43.17.el4_8.5.i386.rpm
openssl-debuginfo-0.9.7a-43.17.el4_8.5.i686.rpm
openssl-debuginfo-0.9.7a-43.17.el4_8.5.x86_64.rpm
openssl-devel-0.9.7a-43.17.el4_8.5.i386.rpm
openssl-devel-0.9.7a-43.17.el4_8.5.x86_64.rpm
openssl-perl-0.9.7a-43.17.el4_8.5.x86_64.rpm

Red Hat Enterprise Linux WS version 4:

Source:
ftp://updates.redhat.com/enterprise/4WS/en/os/SRPMS/openssl-0.9.7a-43.17.el4_8.5.src.rpm

i386:
openssl-0.9.7a-43.17.el4_8.5.i386.rpm
openssl-0.9.7a-43.17.el4_8.5.i686.rpm
openssl-debuginfo-0.9.7a-43.17.el4_8.5.i386.rpm
openssl-debuginfo-0.9.7a-43.17.el4_8.5.i686.rpm
openssl-devel-0.9.7a-43.17.el4_8.5.i386.rpm
openssl-perl-0.9.7a-43.17.el4_8.5.i386.rpm

ia64:
openssl-0.9.7a-43.17.el4_8.5.i686.rpm
openssl-0.9.7a-43.17.el4_8.5.ia64.rpm
openssl-debuginfo-0.9.7a-43.17.el4_8.5.i686.rpm
openssl-debuginfo-0.9.7a-43.17.el4_8.5.ia64.rpm
openssl-devel-0.9.7a-43.17.el4_8.5.ia64.rpm
openssl-perl-0.9.7a-43.17.el4_8.5.ia64.rpm

x86_64:
openssl-0.9.7a-43.17.el4_8.5.i686.rpm
openssl-0.9.7a-43.17.el4_8.5.x86_64.rpm
openssl-debuginfo-0.9.7a-43.17.el4_8.5.i386.rpm
openssl-debuginfo-0.9.7a-43.17.el4_8.5.i686.rpm
openssl-debuginfo-0.9.7a-43.17.el4_8.5.x86_64.rpm
openssl-devel-0.9.7a-43.17.el4_8.5.i386.rpm
openssl-devel-0.9.7a-43.17.el4_8.5.x86_64.rpm
openssl-perl-0.9.7a-43.17.el4_8.5.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-2009-0590.html
https://www.redhat.com/security/data/cve/CVE-2009-2409.html
https://www.redhat.com/security/data/cve/CVE-2009-3555.html
http://www.redhat.com/security/updates/classification/#moderate
http://kbase.redhat.com/faq/docs/DOC-20491

8. Contact:

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

Copyright 2010 Red Hat, Inc.
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