SECURITY (Doc Number=3418): Multiple OpenSSL vulnerabilities

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 -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1   IBM SECURITY ADVISORY  First Issued: Tues Feb 25 14:07:48 CDT 2014  The most recent version of this document is available here:  http://aix.software.ibm.com/aix/efixes/security/openssl_advisory6.asc https://aix.software.ibm.com/aix/efixes/security/openssl_advisory6.asc ftp://aix.software.ibm.com/aix/efixes/security/openssl_advisory6.asc ===============================================================================                            VULNERABILITY SUMMARY  VULNERABILITY:   Multiple OpenSSL vulnerabilities   PLATFORMS:       AIX 5.3, 6.1 and 7.1                  VIOS 2.X  SOLUTION:        Apply the fix as described below.  THREAT:          See below  CVE Numbers:     CVE-2013-4353                  CVE-2013-6450                  CVE-2013-6449  Reboot required?    NO Workarounds?        NO Protected by FPM?   NO Protected by SED?   NO ===============================================================================                            DETAILED INFORMATION  I. DESCRIPTION (From cve.mitre.org)         CVE-2013-4353     A carefully crafted invalid TLS handshake could crash OpenSSL with a NULL      pointer exception. A malicious server could use this flaw to crash a     connecting client. This issue only affected OpenSSL 1.0.1 versions.       CVE-2013-6450     A flaw in DTLS handling can cause an application using OpenSSL and DTLS to     crash. This is not a vulnerability for OpenSSL prior to 1.0.0. OpenSSL is      vulnerable to a denial of service, caused by the failure to properly      maintain data structures for digest and encryption contexts by the DTLS         retransmission implementation. A remote attacker could exploit this i     vulnerability to cause the daemon to crash.         CVE-2013-6449     A flaw in OpenSSL can cause an application using OpenSSL to crash when      using TLS version 1.2. This issue only affected OpenSSL 1.0.1 versions.      OpenSSL is vulnerable to a denial of service, caused by an error in the      ssl_get_algorithm2 function. A remote attacker could exploit this      vulnerability using specially-crafted traffic from a TLS 1.2 client to      cause the daemon to crash.  II. CVSS      CVE-2013-4353     CVSS Base Score: 5     CVSS Temporal Score: See http://xforce.iss.net/xforce/xfdb/90201 for the      current score      CVSS Environmental Score*: Undefined      CVSS Vector:  (AV:N/AC:L/Au:N/C:N/I:N/A:P)      CVE-2013-6450     CVSS Base Score: 4.3     CVSS Temporal Score: See http://xforce.iss.net/xforce/xfdb/90069 for the      current score      CVSS Environmental Score*: Undefined      CVSS Vector:  (AV:N/AC:M/Au:N/C:N/I:N/A:P)      CVE-2013-6449     CVSS Base Score: 4.3     CVSS Temporal Score: See http://xforce.iss.net/xforce/xfdb/90068 for thei     current score      CVSS Environmental Score*: Undefined      CVSS Vector:  (AV:N/AC:M/Au:N/C:N/I:N/A:P)  III. PLATFORM VULNERABILITY ASSESSMENT      The following fileset levels are vulnerable:      AIX 7.1, 6.1, 5.3: all versions less than or equal to 1.0.1.500     VIOS 2.X: all versions less than or equal to 1.0.1.500      IMPORTANT: If AIX OpenSSH is in use, it must be updated to version     OpenSSH 6.0 or later, depending on the OpenSSL version according to     following compatibility matrix:      AIX              OpenSSL                    OpenSSH     ------------------------------------------------------------------     5.3,6.1,7.1      OpenSSL 1.0.1.501          OpenSSH 6.0.0.6103                      (Available)      VIOS             OpenSSL                    OpenSSH     ------------------------------------------------------------------     2.X              OpenSSL 1.0.1.501          OpenSSH 6.0.0.6103                      (Available)      Note: To find out whether the affected filesets are installed on your     systems, refer to the lslpp command found in AIX user's guide.      AIX OpenSSH can be downloaded from:      OpenSSH 6.0:     http://sourceforge.net/projects/openssh-aix     OpenSSH 6.0.0.6103     https://www14.software.ibm.com/webapp/iwm/web/preLogin.do?source=aixbp  IV. FIXES      A fix is available, and it can be downloaded from:      https://www14.software.ibm.com/webapp/iwm/web/preLogin.do?source=aixbp      To extract the fixes from the tar file:      zcat openssl-1.0.1.501.tar.Z | tar xvf -      IMPORTANT: If possible, it is recommended that a mksysb backup     of the system be created.  Verify it is both bootable and     readable before proceeding.      To preview the fix installation:      installp -apYd . openssl      To install the fix package:      installp -aXYd . openssl  V. WORKAROUNDS      There are no workarounds.  VI. CONTACT INFORMATION      If you would like to receive AIX Security Advisories via email,     please visit:          http://www.ibm.com/systems/support      and click on the "My notifications" link.      To view previously issued advisories, please visit:          http://www14.software.ibm.com/webapp/set2/subscriptions/onvdq       Comments regarding the content of this announcement can be     directed to:          security-alert@austin.ibm.com      To obtain the PGP public key that can be used to communicate     securely with the AIX Security Team you can either:          A. Send an email with "get key" in the subject line to:              security-alert@austin.ibm.com          B. Download the key from our web page:    http://www.ibm.com/systems/resources/systems_p_os_aix_security_pgpkey.txt          C. Download the key from a PGP Public Key Server. The key ID is:  	    0x28BFAA12      Please contact your local IBM AIX support center for any     assistance.      eServer is a trademark of International Business Machines     Corporation.  IBM, AIX and pSeries are registered trademarks of     International Business Machines Corporation.  All other trademarks     are property of their respective holders.   VII. REFERENCES:      Complete CVSS Guide: http://www.first.org/cvss/cvss-guide.html     On-line Calculator V2: http://nvd.nist.gov/cvss.cfm?calculator&adv&version=2     X-Force Vulnerability Database: http://xforce.iss.net/xforce/xfdb/90201     X-Force Vulnerability Database: http://xforce.iss.net/xforce/xfdb/90069     X-Force Vulnerability Database: http://xforce.iss.net/xforce/xfdb/90068     CVE-2013-4353: http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2013-4353     CVE-2013-6450: http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2013-6450     CVE-2013-6449: http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2013-6449      *The CVSS Environment Score is customer environment specific and will     ultimately impact the Overall CVSS Score. Customers can evaluate the     impact of this vulnerability in their environments by accessing the links     in the Reference section of this Flash.      Note: According to the Forum of Incident Response and Security Teams     (FIRST), the Common Vulnerability Scoring System (CVSS) is an "industry     open standard designed to convey vulnerability severity and help to     determine urgency and priority of response." IBM PROVIDES THE CVSS SCORES     "AS IS" WITHOUT WARRANTY OF ANY KIND, INCLUDING THE IMPLIED WARRANTIES OF     MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. CUSTOMERS ARE     RESPONSIBLE FOR ASSESSING THE IMPACT OF ANY ACTUAL OR POTENTIAL SECURITY     VULNERABILITY. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.13 (AIX)  iEYEARECAAYFAlMM+GAACgkQ4fmd+Ci/qhLZAwCfRLg1O+vc76+87lGhiieyOb6G LzIAnA7abOLletQyOFnyvHTziH8nHyzd =1gg2 -----END PGP SIGNATURE-----