SECURITY (Doc Number=3295): UPDATE AIX perl Vulnerabilities

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 -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1  IBM SECURITY ADVISORY  First Issued: Wed Nov 20 13:06:27 CST 2013 |Updated: Wed Dec 4 10:00:31 CST 2013 |Update: Corrected CVSS scoring information for CVEs |Update: Includes AIX 5.3 in appropriate places  The most recent version of this document is available here:  http://aix.software.ibm.com/aix/efixes/security/perl_advisory3.asc ===============================================================================                            VULNERABILITY SUMMARY  VULNERABILITY:   Security vulnerabilities in Perl for AIX  | PLATFORMS:     5.3, 6.1 and 7.1  SOLUTION:        Apply the fix as described below.  THREAT:          See below.  CVE Number:      CVE-2012-5526                   CVE-2013-1667  Reboot required?    NO Workarounds?        NO Protected by FPM?   NO Protected by SED?   NO ===============================================================================                            DETAILED INFORMATION  I. DESCRIPTION      CVE-2012-5526     -------------     Perl does not properly escape newlines in (1) Set-Cookie or (2) P3P      headers, which might allow remote attackers to inject arbitrary headers      into responses from applications that use CGI.pm      CVE-2013-1667     -------------     The rehash mechanism in Perl 5.8.2 through 5.16.x allows      context-dependent attackers to cause a denial of service (memory      consumption and crash) via a crafted hash key.  II. CVSS  |   CVE-2012-5526 |   CVSS Base Score: 4.3 |   CVSS Temporal Score: See http://xforce.iss.net/xforce/xfdb/80098  for |   the current score |   CVSS Environmental Score*: Undefined |   CVSS String: (AV:N/AC:M/Au:N/C:N/I:P/A:N)   |   CVE-2013-1667 |   CVSS Base Score: 4.3 |   CVSS Temporal Score: See http://xforce.iss.net/xforce/xfdb/82598  for the |   current score |   CVSS Environmental Score*: Undefined |   CVSS String:(AV:N/AC:M/Au:N/C:N/I:N/A:P)  III. PLATFORM VULNERABILITY ASSESSMENT      To determine if your system is vulnerable, run the following     command:      # lslpp -l perl.rte      The following fileset levels are vulnerable:      AIX Fileset        AIX Level       Lower Level       Upper Level     ---------------------------------------------------------------- |   perl.rte           5.3.12          5.8.8.0           5.8.8.123     perl.rte           6.1.7           5.8.8.0           5.8.8.122     perl.rte           6.1.8           5.8.8.0           5.8.8.244     perl.rte           7.1.1           5.10.1.0          5.10.1.100     perl.rte           7.1.2           5.10.1.0          5.10.1.150      NOTE: Affected customers are urged to upgrade to the latest     applicable Technology Level and Service Pack.  IV. SOLUTIONS      A. APARS          IBM has assigned the following APARs to this problem:          AIX Level           APAR number        Availability         --------------------------------------------------- |       5.3.12              IV43973            NOW         6.1.8               IV43973            NOW         7.1.2               IV46765            NOW          Subscribe to the APARs here:          http://www.ibm.com/support/docview.wss?uid=isg1IV43973         http://www.ibm.com/support/docview.wss?uid=isg1IV46765          By subscribing, you will receive periodic email alerting you         to the status of the APAR, and a link to download the fix once         it becomes available.      B. FIXES          Fixes are available.  The fixes can be downloaded via http         from:  		https://www14.software.ibm.com/webapp/iwm/web/preLogin.do?source=aixbp  		The perl name provided in the web pack site |       For 5.3:	perl61.zip         For 6.1:	perl61.zip         For 7.1:	perl71.zip          To extract the fixes from the zip files:  |       For 5.3: 	gunzip -S .zip perl61.zip         For 6.1: 	gunzip -S .zip perl61.zip         For 7.1:	gunzip -S .zip perl71.zip  		IMPORTANT: It is recommended that a mksysb backup of the system be 		created. Verify that this image is both bootable and readable 		before proceeding.  		To preview the fix installation:     			installp -apYd . perl			  		To install the fix package: 	 			installp -aXYd . perl 		 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/support/mynotifications      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. ACKNOWLEDGMENTS      IBM discovered and fixed this vulnerability as part of its     commitment to secure the AIX operating system.  VIII. 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/80098 |   X-Force Vulnerability Database: http://xforce.iss.net/xforce/xfdb/82598     CVE-2012-5526: http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2012-5526     CVE-2013-1667: http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2013-1667      *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)  iEYEARECAAYFAlKfsRYACgkQ4fmd+Ci/qhIKJQCff1qIjiUT9DQ4psgBq2Nyx/tD EnMAmwUQKbqT0QRty7dMeNNHpNX5oEbS =2MWR -----END PGP SIGNATURE-----