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Security Bulletin: IBM® Db2® is vulnerable to weak file permissions allowing access to specific files (CVE-2020-4976)

Security Bulletin


Summary

IBM Db2 for Linux, UNIX and Windows (includes DB2 Connect Server) could allow a local user to read and write specific files due to weak file permissions.

Vulnerability Details

CVEID:   CVE-2020-4976
DESCRIPTION:   IBM DB2 for Linux, UNIX and Windows (includes DB2 Connect Server) could allow a local user to read and write specific files due to weak file permissions.
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)

Affected Products and Versions

All fix pack levels of IBM Db2 V9.7, V10.1, V10.5, V11.1, and V11.5 editions on all platforms are affected.

Remediation/Fixes

Customers running any vulnerable fixpack level of an affected Program can download the special build containing the interim fix for this issue from Fix Central. These special builds are available based on the most recent fixpack level for each impacted release: V9.7 FP11, V10.1 FP6, V10.5 FP11, V11.1 FP5, and V11.5.5. They can be applied to any affected fixpack level of the appropriate release to remediate this vulnerability.


ReleaseFixed in fix packAPARDownload URL
V9.7TBDIT36015Special Build for V9.7 FP11:

AIX 64-bit
HP-UX 64-bit
Linux 32-bit, x86-32
Linux 64-bit, x86-64
Linux 64-bit, POWER™ big endian
Linux 64-bit, System z®, System z9® or zSeries®
Solaris 64-bit, SPARC
Solaris 64-bit, x86-64
Windows 32-bit, x86
Windows 64-bit, x86

V10.1TBDIT36014Special Build for V10.1 FP6:

AIX 64-bit
HP-UX 64-bit
Linux 32-bit, x86-32
Linux 64-bit, x86-64
Linux 64-bit, POWER™ big endian
Linux 64-bit, System z®, System z9® or zSeries®
Solaris 64-bit, SPARC
Solaris 64-bit, x86-64
Windows 32-bit, x86
Windows 64-bit, x86

V10.5TBDIT36013Special Build for V10.5 FP11:

AIX 64-bit
HP-UX 64-bit
Linux 32-bit, x86-32
Linux 64-bit, x86-64
Linux 64-bit, POWER™ big endian
Linux 64-bit, POWER™ little endian
Linux 64-bit, System z®, System z9® or zSeries®
Solaris 64-bit, SPARC
Solaris 64-bit, x86-64
Windows 32-bit, x86
Windows 64-bit, x86
Inspur   

V11.111.1.4FP6IT35446https://www.ibm.com/support/pages/node/6427871
V11.511.5.5FP1IT35445https://www.ibm.com/support/pages/node/6438025




Workarounds and Mitigations

None

Get Notified about Future Security Bulletins

References

Off

Acknowledgement

Change History

26 Apr 2021: Added urls for 10.1 Windows
1 Apr 2021:  Replaced 11.5 urls with the url to the 11.5.5.1 fix pack
23 Mar 2021:  Added urls for 11.5 Windows
19 Mar 2021:  Removed url for 11.5 Windows
11 Mar 2021: Added url for v9.7 Solaris 64-bit, SPARC
10 Mar 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

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.

Document Location

Worldwide

[{"Business Unit":{"code":"BU001","label":"Analytics Private Cloud"},"Product":{"code":"SSEPGG","label":"DB2 for Linux- UNIX and Windows"},"Component":"","Platform":[{"code":"PF002","label":"AIX"},{"code":"PF027","label":"Solaris"},{"code":"PF010","label":"HP-UX"},{"code":"PF033","label":"Windows"},{"code":"PF016","label":"Linux"}],"Version":"9.7,10.1,10.5,11.1,11.5","Edition":""}]

Document Information

Modified date:
26 April 2021

UID

ibm16427859