IBM SECURITY ADVISORY First Issued: Wed Sep 15 12:36:52 CDT 2021 The most recent version of this document is available here: http://aix.software.ibm.com/aix/efixes/security/java_sep2021_advisory.asc https://aix.software.ibm.com/aix/efixes/security/java_sep2021_advisory.asc ftp://aix.software.ibm.com/aix/efixes/security/java_sep2021_advisory.asc Security Bulletin: Multiple vulnerabilities in IBM Java SDK affect AIX =============================================================================== SUMMARY: There are multiple vulnerabilities in IBM SDK Java Technology Edition, Versions 7, 7.1, 8 used by AIX. AIX has addressed the applicable CVEs. =============================================================================== VULNERABILITY DETAILS: CVEID: CVE-2021-2432 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-2432 https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-2432 DESCRIPTION: An unspecified vulnerability in Java SE related to the JNDI component could allow an unauthenticated attacker to cause a denial of service resulting in a low availability impact using unknown attack vectors. CVSS Base Score: 3.7 CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/205856 for the current score CVSS Environmental Score*: Undefined CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L) CVEID: CVE-2021-2369 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-2369 https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-2369 DESCRIPTION: An unspecified vulnerability in Java SE related to the Library component could allow an unauthenticated attacker to cause no confidentiality impact, low integrity impact, and no availability impact. CVSS Base Score: 4.3 CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/205796 for the current score CVSS Environmental Score*: Undefined CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N) AFFECTED PRODUCTS AND VERSIONS: AIX 7.1, 7.2 VIOS 3.1 The vulnerabilities in the following filesets are being addressed: key_fileset = java Fileset Lower Level Upper Level KEY --------------------------------------------------------- Java7.jre 7.0.0.0 7.0.0.690 key_w_fs Java7.sdk 7.0.0.0 7.0.0.690 key_w_fs Java7.1.jre 7.1.0.0 7.1.0.490 key_w_fs Java7.1.sdk 7.1.0.0 7.1.0.490 key_w_fs Java8.jre 8.0.0.0 8.0.0.635 key_w_fs Java8.sdk 8.0.0.0 8.0.0.635 key_w_fs Java7_64.jre 7.0.0.0 7.0.0.690 key_w_fs Java7_64.sdk 7.0.0.0 7.0.0.690 key_w_fs Java7.1_64.jre 7.1.0.0 7.1.0.490 key_w_fs Java7.1_64.sdk 7.1.0.0 7.1.0.490 key_w_fs Java8_64.jre 8.0.0.0 8.0.0.635 key_w_fs Java8_64.sdk 8.0.0.0 8.0.0.635 key_w_fs Note: To find out whether the affected Java filesets are installed on your systems, refer to the lslpp command found in AIX user's guide. Example: lslpp -L | grep -i java REMEDIATION: A. FIXES AIX and VIOS fixes are available. The AIX and VIOS fixes can be downloaded via ftp or http from: ftp://aix.software.ibm.com/aix/efixes/security/java_sep2021_fix.tar http://aix.software.ibm.com/aix/efixes/security/java_sep2021_fix.tar https://aix.software.ibm.com/aix/efixes/security/java_sep2021_fix.tar The link above is to a tar file containing this signed advisory, fix packages, and OpenSSL signatures for each package. The fixes below include prerequisite checking. This will enforce the correct mapping between the fixes and AIX Technology Levels. Java Fix (*.Z) KEY --------------------------------------------------------- 7.0.0 java7_32_installp_7.0.0.690.tar.gz key_w_fix 7.0.0 java7_64_installp_7.0.0.690.tar.gz key_w_fix 7.1.0 java7r1_32_installp_7.1.0.490.tar.gz key_w_fix 7.1.0 java7r1_64_installp_7.1.0.490.tar.gz key_w_fix 8.0.0 java8_32_installp_8.0.0.636.tar.gz key_w_fix 8.0.0 java8_64_installp_8.0.0.636.tar.gz key_w_fix To extract the fixes from the tar file: tar xvf java_sep2021_fix.tar cd java_sep2021_fix Verify you have retrieved the fixes intact: The checksums below were generated using the "openssl dgst -sha256 [filename]" command as the following: openssl dgst -sha256 filename KEY ----------------------------------------------------------------------------------------------------------------- 6244413c4b6c8c83c3339085a1252c7d60fdc5105aecee2aa4e90a8c22e44905 java7_32_installp_7.0.0.690.tar.gz key_w_csum 6df9dddfd01e29ffa4dbfdcc0663e1bbe0d98db6e5b016eac0dc1e9e0a9d8f36 java7_64_installp_7.0.0.690.tar.gz key_w_csum 60da9cc3d0e39a2aa263bdd68547b512b1288dac22fe2b55fb30fd76e7b9ab7e java7r1_32_installp_7.1.0.490.tar.gz key_w_csum cb8bcfbebebda9bc0f5257c0ae1b141208496eab7b5ba9d4b6aba1eca4711488 java7r1_64_installp_7.1.0.490.tar.gz key_w_csum 6b2e2d720535eb1dca41b16c4ef74fc314757eefdbb024b35425546a9ef41c30 java8_32_installp_8.0.0.636.tar.gz key_w_csum f72d6643d2ac75a2e342535fa7efe6c39c9676986107ba2338b21ee8c1b6c49b java8_64_installp_8.0.0.636.tar.gz key_w_csum These sums should match exactly. The OpenSSL signatures in the tar file and on this advisory can also be used to verify the integrity of the fixes. If the sums or signatures cannot be confirmed, contact IBM Support at http://ibm.com/support/ and describe the discrepancy. openssl dgst -sha256 -verify [pubkey_file] -signature [advisory_file].sig [advisory_file] openssl dgst -sha256 -verify [pubkey_file] -signature [ifix_file].sig [ifix_file] Published advisory OpenSSL signature file location: http://aix.software.ibm.com/aix/efixes/security/java_sep2021_advisory.asc.sig https://aix.software.ibm.com/aix/efixes/security/java_sep2021_advisory.asc.sig ftp://aix.software.ibm.com/aix/efixes/security/java_sep2021_advisory.asc.sig B. FIX AND INTERIM FIX INSTALLATION 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 a fix installation: installp -a -d fix_name -p all # where fix_name is the name of the # fix package being previewed. To install a fix package: installp -a -d fix_name -X all # where fix_name is the name of the # fix package being installed. WORKAROUNDS AND MITIGATIONS: None. =============================================================================== CONTACT US: If you would like to receive AIX Security Advisories via email, please visit "My Notifications": http://www.ibm.com/support/mynotifications To view previously issued advisories, please visit: http://www14.software.ibm.com/webapp/set2/subscriptions/onvdq Contact IBM Support for questions related to this announcement: http://ibm.com/support/ https://ibm.com/support/ To obtain the OpenSSL public key that can be used to verify the signed advisories and ifixes: Download the key from our web page: ftp://ftp.software.ibm.com/systems/power/AIX/systems_p_os_aix_security_pubkey.txt Please contact your local IBM AIX support center for any assistance. REFERENCES: Complete CVSS v2 Guide: http://www.first.org/cvss/v2/guide On-line Calculator v2: http://nvd.nist.gov/CVSS-v2-Calculator Complete CVSS v3 Guide: http://www.first.org/cvss/user-guide On-line Calculator v3: http://www.first.org/cvss/calculator/3.0 RELATED INFORMATION: Security Bulletin: Multiple vulnerabilities in IBM Java SDK affect AIX https://www.ibm.com/support/pages/node/6489477 ACKNOWLEDGEMENTS: None. CHANGE HISTORY: First Issued: Wed Sep 15 12:36:52 CDT 2021 =============================================================================== *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 Security Bulletin. Disclaimer 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.