Security Bulletin: IBM® Db2® is vulnerable to a buffer overflow (CVE-2020-4701)

Security Bulletin

Summary

IBM DB2 for Linux, UNIX and Windows (includes DB2 Connect Server) 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.

Vulnerability Details

CVEID: CVE-2020-4701
DESCRIPTION: IBM DB2 for Linux, UNIX and Windows (includes DB2 Connect Server) 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)

Affected Products and Versions

All fix pack levels of IBM Db2 V10.5, V11.1, and V11.5 editions on all platforms are affected. IBM Db2 V10.1 and 9.7 are not 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: V10.5 FP11, 11.1 FP5, and V11.5.4. They can be applied to any affected fixpack level of the appropriate release to remediate this vulnerability.

Release	Fixed in fix pack	APAR	Download URL
V10.5	TBD	IT34474	Special 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
V11.1	v11.1.4FP6	IT34472	Build for v11.1.4FP6 https://www.ibm.com/support/pages/node/6427871
V11.5	11.5.5.0	IT34614	Build for V11.5.5 GA: https://www.ibm.com/support/pages/node/6368787

Workarounds and Mitigations

None

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References

Complete CVSS v3 Guide
On-line Calculator v3

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Acknowledgement

Change History

10 March 2021: Replaced Special Build urls with the 11.1.4FP6 url
10 December 2020: Updated link for 10.5 Windows 64-bit image
9 Dec 2020: Updated link for 11.1 Linux 64-bit, POWER™ little endian image
18 Nov 2020: 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: IBM® Db2® is vulnerable to a buffer overflow (CVE-2020-4701)