Security Bulletin: Multiple vulnerabilities in IBM® Db2® affect IBM® Db2® Big SQL.

Summary

There are multiple vulnerabilities in IBM® Db2® 11.5 used by IBM® Db2® Big SQL 7 on IBM Cloud Pak for Data 4.7 and earlier. These issues were disclosed in an IBM® Db2® Security Bulletin in July 2023.

Vulnerability Details

CVEID:CVE-2023-30447
**DESCRIPTION:**IBM Db2 for Linux, UNIX and Windows (includes Db2 Connect Server) 10.5, 11.1, and 11.5 is vulnerable to denial of service with a specially crafted query on certain tables. IBM X-Force ID: 253436.
CVSS Base score: 5.3
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/253436 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-2023-30446
**DESCRIPTION:**IBM Db2 for Linux, UNIX and Windows (includes Db2 Connect Server) 10.5, 11.1, and 11.5 is vulnerable to denial of service with a specially crafted query on certain tables. IBM X-Force ID: 253436.
CVSS Base score: 5.3
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/253361 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-2023-30443
**DESCRIPTION:**IBM Db2 for Linux, UNIX and Windows (includes Db2 Connect Server) 10.5, 11.1, and 11.5 is vulnerable to denial of service with a specially crafted query. IBM X-Force ID: 253205.
CVSS Base score: 6.5
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/253205 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-2023-30448
**DESCRIPTION:**IBM DB2 for Linux, UNIX and Windows (includes Db2 Connect Server) 10.5, 11.1, and 11.5 is vulnerable to denial of service with a specially crafted query on certain tables. IBM X-Force ID: 253437.
CVSS Base score: 5.3
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/253437 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-2023-30445
**DESCRIPTION:**IBM Db2 for Linux, UNIX and Windows (includes Db2 Connect Server) 10.5, 11.1, and 11.5 is vulnerable to denial of service with a specially crafted query on certain tables. IBM X-Force ID: 253357.
CVSS Base score: 6.5
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/253357 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-2023-30449
**DESCRIPTION:**IBM Db2 for Linux, UNIX and Windows (includes Db2 Connect Server) 10.5, 11.1, and 11.5 is vulnerable to denial of service with a specially crafted query. IBM X-Force ID: 253439.
CVSS Base score: 6.5
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/253439 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-2023-23487
**DESCRIPTION:**IBM Db2 for Linux, UNIX and Windows (includes Db2 Connect Server) 11.1 and 11.5 is vulnerable to insufficient audit logging. IBM X-Force ID: 245918.
CVSS Base score: 4.3
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/245918 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N)

CVEID:CVE-2023-30431
**DESCRIPTION:**IBM Db2 for Linux, UNIX and Windows (includes Db2 Connect Server) 10.5, 11.1, and 11.5 db2set is vulnerable to a buffer overflow, caused by improper bounds checking. An attacker could overflow the buffer and execute arbitrary code. IBM X-Force ID: 252184.
CVSS Base score: 8.4
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/252184 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-2023-27869
**DESCRIPTION:**IBM Db2 JDBC Driver for Db2 for Linux, UNIX and Windows 10.5, 11.1, and 11.5 could allow a remote authenticated attacker to execute arbitrary code on the system, caused by an unchecked logger injection. By sending a specially crafted request using the named traceFile property, an attacker could exploit this vulnerability to execute arbitrary code on the system. IBM X-Force ID: 249517.
CVSS Base score: 6.3
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/249517 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L)

CVEID:CVE-2023-27867
**DESCRIPTION:**IBM Db2 JDBC Driver for Db2 for Linux, UNIX and Windows 10.5, 11.1, and 11.5 could allow a remote authenticated attacker to execute arbitrary code via JNDI Injection. By sending a specially crafted request using the property clientRerouteServerListJNDIName, an attacker could exploit this vulnerability to execute arbitrary code on the system. IBM X-Force ID: 249514.
CVSS Base score: 6.3
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/249514 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L)

CVEID:CVE-2023-27868
**DESCRIPTION:**IBM Db2 JDBC Driver for Db2 for Linux, UNIX and Windows 10.5, 11.1, and 11.5 could allow a remote authenticated attacker to execute arbitrary code on the system, caused by an unchecked class instantiation when providing plugin classes. By sending a specially crafted request using the named pluginClassName class, an attacker could exploit this vulnerability to execute arbitrary code on the system. IBM X-Force ID: 249516.
CVSS Base score: 6.3
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/249516 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L)

CVEID:CVE-2023-30442
**DESCRIPTION:**IBM Db2 for Linux, UNIX and Windows (includes Db2 Connect Server) 11.1 and 11.5 federated server is vulnerable to a denial of service as the server may crash when using a specially crafted wrapper using certain options. IBM X-Force ID: 253202.
CVSS Base score: 5.9
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/253202 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H)

CVEID:CVE-2023-29256
**DESCRIPTION:**IBM Db2 for Linux, UNIX and Windows (includes Db2 Connect Server) 10.5, 11.1, and 11.5 is vulnerable to an information disclosure due to improper privilege management when certain federation features are used. IBM X-Force ID: 252046.
CVSS Base score: 5.3
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/252046 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N)

CVEID:CVE-2023-27558
**DESCRIPTION:**IBM Db2 on Windows 10.5, 11.1, and 11.5 may be vulnerable to a privilege escalation caused by at least one installed service using an unquoted service path. A local attacker could exploit this vulnerability to gain elevated privileges by inserting an executable file in the path of the affected service. IBM X-Force ID: 249194.
CVSS Base score: 8.4
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/249194 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-2023-35012
**DESCRIPTION:**IBM Db2 for Linux, UNIX and Windows (includes Db2 Connect Server) 11.5 with a Federated configuration is vulnerable to a stack-based buffer overflow, caused by improper bounds checking. A local user with SYSADM privileges could overflow the buffer and execute arbitrary code on the system. IBM X-Force ID: 257763.
CVSS Base score: 6.7
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/257763 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)

Affected Products and Versions

Remediation/Fixes

The recommended solution to address this vulnerability is to upgrade Db2 Big SQL to version 7.5.3 or later available on IBM Cloud Pak for Data 4.7.3 or later by following the instructions for Upgrading Cloud Pak for Data.

Workarounds and Mitigations

None