[HP-SOS] Update zu OpenSSL - HPSBTL0207-055

win-sec-ssc at cert.dfn.de win-sec-ssc at cert.dfn.de
Don Aug 8 16:47:52 CEST 2002


Liebe Kolleginnen und Kollegen,

soeben erreichte uns das nachfolgende Bulletin der HP SupportLine.
Wir geben diese Informationen unveraendert an Sie weiter.

In der 1. Revision werden korrigierte OpenSSL Pakete zur verfuegung
gestellt, die weitere Fehler beheben.

Zu den Schwachstellen in OpenSSL haben wir bereits einige Advisories
weitergeleitet - u.a. am 30.7.2002 ein Advisory von OpenSSL.

Zur Erinnerung: Die Beschreibung der Schwachstellen:

CAN-2002-0656 (http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2002-0656)

1) In SSL2 kann ein uebergrosser Client Master Key einen Buffer
   Overflow ausloesen.

2) Eine ueberlange Session-ID kann in SSL3 einen Buffer Overflow

CAN-2002-0657 (http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2002-0657)

CAN-2002-0655 (http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2002-0655)

4) Verschiedene Puffer fuer die ASCII-Darstellung von Integer-Werten
   sind zu klein. Hiervon ist nur OpenSSL auf 64-Bit Plattformen

CAN-2002-0659 (http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2002-0659)

5) Es existieren Schwachstellen im Decoder der ASN.1
   Bibliothek. Ein Angreifer kann die Schwachstelle durch 
   entsprechend konstruierte ASN.1 kodierte Objekte ausnutzen.

Wie ueblich, ist das Advisory von HP nicht digital signiert.

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

Mit freundlichen Gruessen,

	Jan Kohlrausch
- -- 
Jan Kohlrausch     |                mailto:kohlrausch at cert.dfn.de
DFN-CERT GmbH      |      http://www.cert.dfn.de/team/kohlrausch/
Oberstr. 14b.      |                    Phone: +49(40) 808077 555
D-20144 Hamburg    |                      FAX: +49(40) 808077 556
Germany	           |     PGP-Key: finger kohlraus at ftp.cert.dfn.de

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Digest Name:  daily HP Secure OS Software for Linux security bulletins digest
    Created:  Wed Aug  7  3:00:03 PDT 2002

Table of Contents:

Document ID      Title
- ---------------  -----------
HPSBTL0207-055   Security vulnerability in openssl (ref. 1)

The documents are listed below.
- -------------------------------------------------------------------------------

Document ID:  HPSBTL0207-055
Date Loaded:  20020730
      Title:  Security vulnerability in openssl (ref. 1)




- ---------------------------------------------------------------
    Originally issued: 30 July '02
    ** Rev. 1 ** 06 August '02
- ---------------------------------------------------------------

The information in the following Security Bulletin should be acted
upon as soon as possible.  Hewlett-Packard Company will not be
liable for any consequences to any customer resulting from the
customer's failure to fully implement instructions in this Security
Bulletin as soon as possible.

Because the vulnerability does not require a HP Secure OS
1.0 patch or re-packaging of the RPM affected by the bulletin, the
RPMs have not been produced or tested by Hewlett-Packard Company.

- ---------------------------------------------------------------
PROBLEM:  Updated OpenSSL packages fix several vulnerabilities

PLATFORM: Any system running HP Secure OS Software for Linux Release 1.0

DAMAGE:   Potential for remotely exploitable buffer overflow

SOLUTION: Apply the appropriate RPMs (see section B below)


AVAILABILITY: The RPMs are available now.

CHANGE SUMMARY: Rev. 1 Updated OpenSSL packages are available
- ---------------------------------------------------------------
 A. Background

    OpenSSL is a commercial-grade, full-featured, and Open Source 
    toolkit which 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 security 
    audit of the OpenSSL code sponsored by DARPA found several 
    buffer overflows in OpenSSL which affect versions 0.9.7 and 
    0.9.6d and earlier.

** Rev. 1 **
>>> Additional OpenSSL security vulnerabilities were found, 
    corrected and updated in the RPM packages previously made available 
    under Red Hat Security Advisory number RHSA-2002:155.

 B. Fixing the problem

    Hewlett-Packard Company recommends that customers install the RPMs
    listed in the following Red Hat Security Advisory in the section 
    labeled "Red Hat Linux 7.1 i386".

** Rev. 1 **
>>> 2002-08-05 RHSA-2002:160  Updated openssl packages fix protocol 
                              parsing bugs 

>>> http://rhn.redhat.com/errata/RHSA-2002-160.html

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- ---------------------------------------------------------------
- -----End of Document ID:  HPSBTL0207-055--------------------------------------

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