Security Bulletin: Multiple vulnerabilities has been identified in IBM® DB2® shipped with IBM PureData System for Operational Analytics

Security Bulletin

Summary

IBM® DB2® is shipped as a component of IBM PureData System for Operational Analytics. Information about security vulnerabilities affecting IBM DB2 have been published in a security bulletin.

Vulnerability Details

CVEID: CVE-2020-4387
DESCRIPTION: IBM DB2 for Linux, UNIX and Windows (includes DB2 Connect Server) 9.7, 10.1, 10.5, 11.1, and 11.5 could allow a local user to obtain sensitive information using a race condition of a symbolic link. IBM X-Force ID: 179269.
CVSS Base score: 6.2
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/179269 for the current score.
CVSS Vector: (CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N)

CVEID: CVE-2020-4386
DESCRIPTION: IBM DB2 for Linux, UNIX and Windows (includes DB2 Connect Server) 9.7, 10.1, 10.5, 11.1, and 11.5 could allow a local user to obtain sensitive information using a race condition of a symbolic link. IBM X-Force ID: 179268.
CVSS Base score: 6.2
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/179268 for the current score.
CVSS Vector: (CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N)

CVEID: CVE-2020-4355
DESCRIPTION: IBM DB2 for Linux, UNIX and Windows (includes DB2 Connect Server) 9.7, 10.1, 10.5, 11.1, and 11.5 is vulnerable to a denial of service, caused by improper handling of Secure Sockets Layer (SSL) renegotiation requests. By sending specially-crafted requests, a remote attacker could exploit this vulnerability to increase the resource usage on the system. IBM X-Force ID: 178507.
CVSS Base score: 5.3
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/178507 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L)

CVEID: CVE-2020-4363
DESCRIPTION: IBM DB2 for Linux, UNIX and Windows (includes DB2 Connect Server) 9.7, 10.1, 10.5, 11.1, and 11.5 is vulnerable to a buffer overflow, caused by improper bounds checking which could allow a local attacker to execute arbitrary code on the system with root privileges. IBM X-Force ID: 178960.
CVSS Base score: 8.4
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/178960 for the current score.
CVSS Vector: (CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H)

CVEID: CVE-2020-4414
DESCRIPTION: IBM DB2 for Linux, UNIX and Windows (includes DB2 Connect Server) 9.7, 10.1, 10.5, 11.1, and 11.5 could allow a local attacker to perform unauthorized actions on the system, caused by improper usage of shared memory. By sending a specially-crafted request, an attacker could exploit this vulnerability to obtain sensitive information or cause a denial of service. IBM X-Force ID: 179989.
CVSS Base score: 5.1
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/179989 for the current score.
CVSS Vector: (CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L)

CVEID: CVE-2020-4420
DESCRIPTION: IBM DB2 for Linux, UNIX and Windows (includes DB2 Connect Server) 9.7, 10.1, 10.5, 11.1, and 11.5 could allow an unauthenticated attacker to cause a denial of service due a hang in the execution of a terminate command. IBM X-Force ID: 180076.
CVSS Base score: 7.5
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/180076 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)

CVEID: CVE-2021-29777
DESCRIPTION: IBM Db2 for Linux, UNIX and Windows (includes Db2 Connect Server) 9.7, 10.1, 10.5, 11.1, and 11.5, under specific circumstance of a table being dropped while being accessed in another session, could allow an authenticated user to cause a denial of srevice IBM X-Force ID: 203031.
CVSS Base score: 5.3
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/203031 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H)

CVEID: CVE-2021-20579
DESCRIPTION: IBM Db2 for Linux, UNIX and Windows (includes Db2 Connect Server) 9.7, 10.1, 10.5, 11.1, and 11.5 could allow a user who can create a view or inline SQL function to obtain sensitive information when AUTO_REVAL is set to DEFFERED_FORCE. IBM X-Force ID: 199283.
CVSS Base score: 5.9
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/199283 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N)

CVEID: CVE-2021-29703
DESCRIPTION: Db2 for Linux, UNIX and Windows (includes Db2 Connect Server) is vulnerable to a denial of service as the server terminates abnormally when executing a specially crafted SELECT statement. IBM X-Force ID: 200659.
CVSS Base score: 7.5
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/200659 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)

CVEID: CVE-2019-4102
DESCRIPTION: IBM DB2 for Linux, UNIX and Windows (includes DB2 Connect Server) 9.7, 10.1, 10.5, and 11.0 uses weaker than expected cryptographic algorithms that could allow an attacker to decrypt highly sensitive information. IBM X-Force ID: 158092.
CVSS Base score: 5.9
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/158092 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N)

CVEID: CVE-2019-4322
DESCRIPTION: IBM DB2 for Linux, UNIX and Windows (includes DB2 Connect Server) 9.7, 10.1, 10.5, and 11.1 is vulnerable to a buffer overflow, which could allow an authenticated local attacker to execute arbitrary code on the system as root. IBM X-Force ID: 161202.
CVSS Base score: 8.4
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/161202 for the current score.
CVSS Vector: (CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H)

CVEID: CVE-2019-4057
DESCRIPTION: IBM DB2 for Linux, UNIX and Windows (includes DB2 Connect Server) 9.7, 10.1, 10.5, and 11.1 could allow malicious user with access to the DB2 instance account to leverage a fenced execution process to execute arbitrary code as root. IBM X-Force ID: 156567.
CVSS Base score: 6.7
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/156567 for the current score.
CVSS Vector: (CVSS:3.0/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H)

CVEID: CVE-2019-4101
DESCRIPTION: IBM DB2 for Linux, UNIX and Windows (includes DB2 Connect Server) 10.1, 10.5, and 11.1 is vulnerable to a denial of service. Users that have both EXECUTE on PD_GET_DIAG_HIST and access to the diagnostic directory on the DB2 server can cause the instance to crash. IBM X-Force ID: 158091.
CVSS Base score: 6.2
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/158091 for the current score.
CVSS Vector: (CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)

CVEID: CVE-2019-4386
DESCRIPTION: IBM DB2 for Linux, UNIX and Windows (includes DB2 Connect Server) 11.1 could allow an authenticated user to execute a function that would cause the server to crash. IBM X-Force ID: 162714.
CVSS Base score: 6.5
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/162174 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H)

CVEID: CVE-2019-4154
DESCRIPTION: IBM DB2 for Linux, UNIX and Windows (includes DB2 Connect Server) 9.7, 10.1, 10.5, and 11.1 is vulnerable to a buffer overflow, which could allow an authenticated local attacker to execute arbitrary code on the system as root. IBM X-Force ID: 158519.
CVSS Base score: 8.4
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/158519 for the current score.
CVSS Vector: (CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H)

CVEID: CVE-2020-5024
DESCRIPTION: IBM DB2 for Linux, UNIX and Windows (includes DB2 Connect Server) 9.7, 10.1, 10.5, 11.1, and 11.5 could allow an unauthenticated attacker to cause a denial of service due a hang in the SSL handshake response. IBM X-Force ID: 193660.
CVSS Base score: 7.5
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/193660 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)

CVEID: CVE-2020-5025
DESCRIPTION: IBM DB2 for Linux, UNIX and Windows (includes DB2 Connect Server) 9.7, 10.1, 10.5, 11.1, and 11.5 db2fm is vulnerable to a buffer overflow, caused by improper bounds checking which could allow a local attacker to execute arbitrary code on the system with root privileges. IBM X-Force ID: 193661.
CVSS Base score: 8.4
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/193661 for the current score.
CVSS Vector: (CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H)

CVEID: CVE-2020-4976
DESCRIPTION: IBM DB2 for Linux, UNIX and Windows (includes DB2 Connect Server) 9.7, 10.1, 10.5, 11.1, and 11.5 could allow a local user to read and write specific files due to weak file permissions. IBM X-Force ID: 192469.
CVSS Base score: 5.1
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/192469 for the current score.
CVSS Vector: (CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N)

CVEID: CVE-2020-4701
DESCRIPTION: IBM DB2 for Linux, UNIX and Windows (includes DB2 Connect Server) 10.5, 11.1, and 11.5 is vulnerable to a buffer overflow, caused by improper bounds checking which could allow a local attacker to execute arbitrary code on the system with root privileges.
CVSS Base score: 8.4
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/187078 for the current score.
CVSS Vector: (CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H)

CVEID: CVE-2020-4739
DESCRIPTION: IBM Db2 for Linux, UNIX and Windows (includes Db2 Connect Server) 9.7, 10.1, 10.5, 11.1, and 11.5 could allow a local authenticated attacker to execute arbitrary code on the system, caused by DLL search order hijacking vulnerability in Microsoft Windows client. By placing a specially crafted file in a compromised folder, an attacker could exploit this vulnerability to execute arbitrary code on the system. IBM X-Force ID: 188149.
CVSS Base score: 7.8
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/188149 for the current score.
CVSS Vector: (CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H)

CVEID: CVE-2021-38931
DESCRIPTION: IBM Db2 for Linux, UNIX and Windows (includes DB2 Connect Server) 11.1, and 11.5 is vulnerable to an information disclosure as a result of a connected user having indirect read access to a table where they are not authorized to select from. IBM X-Force ID: 210418.
CVSS Base score: 6.5
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/210418 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N)

CVEID: CVE-2021-29678
DESCRIPTION: IBM Db2 for Linux, UNIX and Windows (includes Db2 Connect Server) 9.7, 10.1, 10.5, 11.1, and 11.5 could allow a user with DBADM authority to access other databases and read or modify files. IBM X-Force ID: 199914.
CVSS Base score: 8.7
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/199914 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:N)

CVEID: CVE-2021-20373
DESCRIPTION: IBM Db2 9.7, 10.1, 10.5, 11.1, and 11.5 may be vulnerable to an Information Disclosure when using the LOAD utility as under certain circumstances the LOAD utility does not enforce directory restrictions. IBM X-Force ID: 199521.
CVSS Base score: 5.9
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/195521 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N)

CVEID: CVE-2021-39002
DESCRIPTION: IBM DB2 for Linux, UNIX and Windows (includes DB2 Connect Server) 9.7, 10.1, 10.5, 11.1, and 11.5 uses weaker than expected cryptographic algorithms that could allow an attacker to decrypt highly sensitive information.
CVSS Base score: 5.9
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/213217 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N)

CVEID: CVE-2021-38926
DESCRIPTION: IBM Db2 for Linux, UNIX and Windows (includes Db2 Connect Server) 9.7, 10.1, 10.5, 11.1, and 11.5 could allow a local user to gain privileges due to allowing modification of columns of existing tasks. IBM X-Force ID: 210321.
CVSS Base score: 5.5
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/210321 for the current score.
CVSS Vector: (CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N)

CVEID: CVE-2018-1936
DESCRIPTION: IBM DB2 9.7, 10.1, 10.5, and 11.1 libdb2e.so.1 is vulnerable to a stack based buffer overflow, caused by improper bounds checking which could allow an attacker to execute arbitrary code. IBM X-Force ID: 153316.
CVSS Base score: 8.4
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/153316 for the current score.
CVSS Vector: (CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H)

CVEID: CVE-2019-4014
DESCRIPTION: IBM DB2 for Linux, UNIX and Windows (includes DB2 Connect Server) 9.7, 10.1, 10.5, and 11.1 is vulnerable to a buffer overflow, which could allow an authenticated local attacker to execute arbitrary code on the system as root. IBM X-Force ID: 155892.
CVSS Base score: 8.4
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/155892 for the current score.
CVSS Vector: (CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H)

Affected Products and Versions

IBM PureData System for Operational Analytics V1.1 (A1801)

Remediation/Fixes

Determine the appliance fixpack level as root on the management server using the appl_ls_cat command.

$ appl_ls_cat -i
NAME VERSION STATUS DESCRIPTION
bwr3 4.0.8.0 Committed Updates for IBM_PureData_System_for_Operational_Analytics

Determine the version of Db2 used on the core nodes in the appliance. The command below shows that Version 10.5.0.11 is installed. The number of hosts, Db2 version and instance name are customer dependent. The appliance supports Db2 10.5 or Db2 11.1 and the default instance owner is bcuaix. The command below shows that the instance is used Db2 10.5.0.11.

$ dsh -n ${BCUALL} '/usr/local/bin/db2ls -c | grep -v "#" | cut -d: -f 1 | head -1 | while read p;do $p/bin/db2greg -dump | grep "^I";done'| dshbak -c
HOSTS -------------------------------------------------------------------------
host02, host04, host05, hostflash06
-------------------------------------------------------------------------------
I,DB2,10.5.0.11,bcuaix,/db2home/bcuaix/sqllib,,1,0,/usr/IBM/dwe/db2/V10.5.0.11..2,,

$ db2level
DB21085I This instance or install (instance name, where applicable: "bcuaix")
uses "64" bits and DB2 code release "SQL1005B" with level identifier
"060C010E".
Informational tokens are "DB2 v10.5.0.11", "special_40479", "IP24071_40479",
and Fix Pack "11".
Product is installed at "/usr/IBM/dwe/db2/V10.5.0.11..2".

Use the table below to determine how to download the Db2 Fixpack or Special Build and then refer to the appliance technote https://www.ibm.com/support/pages/installing-db2-fix-pack-ibm-puredata-system-operational-analytics for instructions on how to apply the Db2 Fixpack or Special Build on the appliance. Contact IBM Support for any questions or concerns related to this update. The number in brackets will match version returned by the appl_ls_conf command.

Current V1.1 Fixpack Level	Remediation Options
V1.1 GA [ 4.0.4.x ]	Update to V1.1 FP4 or DB2 Version 10.5 Fix Pack 11 for Linux, UNIX, and Windows Db2 Version 11.1 Mod 4 Fix Pack 7 for Linux, UNIX, and Windows
V1.1 FP1 [ 4.0.5.x ]	Update to V1.1 FP4 or DB2 Version 10.5 Fix Pack 11 for Linux, UNIX, and Windows Db2 Version 11.1 Mod 4 Fix Pack 7 for Linux, UNIX, and Windows
V1.1 FP2 [ 4.0.6.x ]	Update to V1.1 FP4 or DB2 Version 10.5 Fix Pack 11 for Linux, UNIX, and Windows Db2 Version 11.1 Mod 4 Fix Pack 7 for Linux, UNIX, and Windows
V1.1 FP3 [ 4.0.7.x ]	Update to V1.1 FP4 or DB2 Version 10.5 Fix Pack 11 for Linux, UNIX, and Windows Db2 Version 11.1 Mod 4 Fix Pack 7 for Linux, UNIX, and Windows
V1.1 FP4 [ 4.0.8.x ]	Validated stack is not vulnerable at this level.

Workarounds and Mitigations

None

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References

Complete CVSS v3 Guide
On-line Calculator v3

Off

Published Security Vulnerabilities for DB2 for Linux, UNIX, and Windows including Special Build information

Validated stack for the IBM PureData System for Operational Analytics V1.1 (A1801)

Version history of the validated stack for the IBM PureData System for Operational Analytics V1.1 (A1801)

Change History

22 Jun 2022: Initial Publication

*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

Review the IBM security bulletin disclaimer and definitions regarding your responsibilities for assessing potential impact of security vulnerabilities to your environment.

Document Location

Worldwide

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Tips

Security Bulletin: Multiple vulnerabilities has been identified in IBM® DB2® shipped with IBM PureData System for Operational Analytics