CVE-2023-26021 : IBM Db2 for Linux, UNIX and Windows (includes Db2 Connect Server) 11.1 and 11.5

IBM Db2 for Linux, UNIX and Windows (includes Db2 Connect Server) 11.1 and 11.5 is vulnerable to a denial of service as the server may crash when compiling a specially crafted SQL query using a LIMIT clause. IBM X-Force ID: 247864.

Published 2023-04-28 19:15:17

Updated 2023-05-11 15:15:11

Source IBM Corporation

View at NVD, CVE.org

Vulnerability category: Input validationDenial of service

Products affected by CVE-2023-26021

IBM » DB2
Versions from including (>=) 11.1 and before (<) 11.1.4
cpe:2.3:a:ibm:db2:*:*:*:*:*:*:*:*
Matching versions
When used together with: Linux » Linux Kernel » Version: N/A
When used together with: Microsoft » Windows » Version: N/A
IBM » DB2
Versions from including (>=) 11.5 and before (<) 11.5.8
cpe:2.3:a:ibm:db2:*:*:*:*:*:*:*:*
Matching versions
When used together with: Linux » Linux Kernel » Version: N/A
When used together with: Microsoft » Windows » Version: N/A
IBM » DB2 » Version: 11.1.4 Update FP6
cpe:2.3:a:ibm:db2:11.1.4:fp6:*:*:*:*:*:*
Matching versions
When used together with: Linux » Linux Kernel » Version: N/A
When used together with: Microsoft » Windows » Version: N/A
IBM » DB2 » Version: 11.1.4
cpe:2.3:a:ibm:db2:11.1.4:-:*:*:*:*:*:*
Matching versions
When used together with: Linux » Linux Kernel » Version: N/A
When used together with: Microsoft » Windows » Version: N/A
IBM » DB2 » Version: 11.1.4 Update FP1
cpe:2.3:a:ibm:db2:11.1.4:fp1:*:*:*:*:*:*
Matching versions
When used together with: Linux » Linux Kernel » Version: N/A
When used together with: Microsoft » Windows » Version: N/A
IBM » DB2 » Version: 11.1.4 Update FP2
cpe:2.3:a:ibm:db2:11.1.4:fp2:*:*:*:*:*:*
Matching versions
When used together with: Linux » Linux Kernel » Version: N/A
When used together with: Microsoft » Windows » Version: N/A
IBM » DB2 » Version: 11.1.4 Update FP3
cpe:2.3:a:ibm:db2:11.1.4:fp3:*:*:*:*:*:*
Matching versions
When used together with: Linux » Linux Kernel » Version: N/A
When used together with: Microsoft » Windows » Version: N/A
IBM » DB2 » Version: 11.1.4 Update FP4
cpe:2.3:a:ibm:db2:11.1.4:fp4:*:*:*:*:*:*
Matching versions
When used together with: Linux » Linux Kernel » Version: N/A
When used together with: Microsoft » Windows » Version: N/A
IBM » DB2 » Version: 11.1.4 Update FP5
cpe:2.3:a:ibm:db2:11.1.4:fp5:*:*:*:*:*:*
Matching versions
When used together with: Linux » Linux Kernel » Version: N/A
When used together with: Microsoft » Windows » Version: N/A

Exploit prediction scoring system (EPSS) score for CVE-2023-26021

EPSS FAQ

0.19%

Probability of exploitation activity in the next 30 days EPSS Score History

~ 56 %

Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2023-26021

Base Score	Base Severity	CVSS Vector	Exploitability Score	Impact Score	Score Source
7.5	HIGH	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H	3.9	3.6	NIST
Attack Vector: Network Attack Complexity: Low Privileges Required: None User Interaction: None Scope: Unchanged Confidentiality: None Integrity: None Availability: High
7.5	HIGH	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H	3.9	3.6	IBM Corporation
Attack Vector: Network Attack Complexity: Low Privileges Required: None User Interaction: None Scope: Unchanged Confidentiality: None Integrity: None Availability: High

CWE ids for CVE-2023-26021

CWE-20 Improper Input Validation

The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.

Assigned by: psirt@us.ibm.com (Primary)

References for CVE-2023-26021

https://security.netapp.com/advisory/ntap-20230511-0010/

April 2023 IBM DB2 Vulnerabilities in NetApp Products | NetApp Product Security

CVEs referencing this url
https://www.ibm.com/support/pages/node/6985681

Security Bulletin: IBM® Db2® is vulnerable to a denial of service as the server may crash when compiling a specially crafted SQL query using a LIMIT clause. (CVE-2023-26021)
Patch;Vendor Advisory
https://exchange.xforce.ibmcloud.com/vulnerabilities/247864

IBM Db2 denial of service CVE-2023-26021 Vulnerability Report
VDB Entry;Vendor Advisory

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Vulnerability Details : CVE-2023-26021

Products affected by CVE-2023-26021

Exploit prediction scoring system (EPSS) score for CVE-2023-26021

CVSS scores for CVE-2023-26021

CWE ids for CVE-2023-26021

References for CVE-2023-26021