Security Bulletin
Summary
DB2 contains several vulnerabilities which can affect the IBM Performance Management product. Information about security vulnerabilities affecting DB2 has been published in security bulletins.
Vulnerability Details
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-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-2020-4885
DESCRIPTION: IBM Db2 for Linux, UNIX and Windows (includes Db2 Connect Server) 11.5 could allow a local user to access and change the configuration of Db2 due to a race condition of a symbolic link,. IBM X-Force ID: 190909.
CVSS Base score: 6.2
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/190909 for the current score.
CVSS Vector: (CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N)
CVEID: CVE-2020-4945
DESCRIPTION: IBM Db2 for Linux, UNIX and Windows (includes Db2 Connect Server) 11.5 could allow an authenticated user to overwrite arbirary files due to improper group permissions. IBM X-Force ID: 191945.
CVSS Base score: 6.5
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/191945 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N)
Affected Products and Versions
| Affected Product(s) | Version(s) |
| IBM Cloud APM, Base Private | 8.1.4 |
| IBM Cloud APM, Advanced Private | 8.1.4 |
Remediation/Fixes
The vulnerabilities can be remediated by first applying the necessary fixes to your DB2 V10.5, or V11.1 server. The fixes can be accessed from the following security bulletins:
Security Bulletin: IBM® Db2® is vulnerable to a denial of service (CVE-2020-5024)
Security Bulletin: IBM® Db2® db2fm is vulnerable to a buffer overflow (CVE-2020-5025)
Security Bulletin: IBM® Db2® is vulnerable to weak file permissions allowing access to specific files (CVE-2020-4976)
Security Bulletin: Under special circumstances, Db2 is vulnerable to a denial of service during drop table (CVE-2021-29777)
Security Bulletin: IBM® Db2® is vulnerable to an information disclosure (CVE-2021-20579)
Security Bulletin: IBM® Db2® is vulnerable to a denial of service as the server terminates abnormally when executing a specially crafted SELECT statement. (CVE-2021-29703)
Security Bulletin: Multiple vulnerabilities in dependent libraries affect IBM® Db2® leading to denial of service or privilege escalation.
Security Bulletin: IBM® Db2® could allow a local user to access and change the configuration of DB2 due to a race condition via a symbolic link. (CVE-2020-4885)
Security Bulletin: IBM® Db2® could allow an authenticated user to overwrite arbirary files due to improper group permissions. (CVE-2020-4945)
To use your updated DB2 V10.5, or V11.1 server with your IBM Cloud Application Performance Management product, apply the 8.1.4.0-IBM-APM-SERVER-IF0004 or later server patch to the system where the Cloud APM server is installed. Interim fixes for the Cloud APM server version 8.1.4 are available to download from IBM Fix Central at this link:
Workarounds and Mitigations
None
Get Notified about Future Security Bulletins
References
Change History
06 Dec 2021: 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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Document Information
Modified date:
17 December 2021
UID
ibm16528194