CVSS2
Attack Vector
NETWORK
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
AV:N/AC:M/Au:N/C:N/I:N/A:P
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
LOW
Availability Impact
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N
EPSS
Percentile
69.4%
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
https://vulners.com/cve/CVE-2021-2432
https://vulners.com/cve/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
https://vulners.com/cve/CVE-2021-2369
https://vulners.com/cve/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.
CVSS2
Attack Vector
NETWORK
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
AV:N/AC:M/Au:N/C:N/I:N/A:P
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
LOW
Availability Impact
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N
EPSS
Percentile
69.4%