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CentOS ProjectJAVA_SEP2021_ADVISORY.ASC

HistorySep 15, 2021 - 12:36 p.m.

Multiple vulnerabilities in IBM Java SDK affect AIX

2021-09-1512:36:52

CentOS Project

aix.software.ibm.com

163

4.3 Medium

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

4.3 Medium

CVSS2

Access Vector

NETWORK

Access Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

PARTIAL

Availability Impact

NONE

AV:N/AC:M/Au:N/C:N/I:P/A:N

0.002 Low

EPSS

Percentile

60.6%

JSON

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.

===============================================================================

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.