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CVE-2023-27559— IBM Db2 denial of service

Quick assessment

Affected
IBM Db2 for Linux, UNIX and Windows
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

IBM DB2是美国国际商业机器（IBM）公司的一套关系型数据库管理系统。该系统的执行环境主要有UNIX、Linux、IBMi、z/OS以及Windows服务器版本。 IBM Db2存在输入验证错误漏洞，该漏洞源于服务器在使用特制子查询时可能会崩溃。以下产品和版本受到影响：IBM Db2 for Linux、UNIX 和 Windows 10.5、11.1 和 11.5等版本。

CVSS 5.3 · Medium EPSS 0.94% · P59

Possible ATT&CK Techniques 1 AI

T1499 · Endpoint Denial of Service
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I. Basic Information for CVE-2023-27559

Vulnerability Information
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Vulnerability Title
IBM Db2 denial of service
Source: CVE Program / CVE List V5
Vulnerability Description
IBM Db2 for Linux, UNIX and Windows (includes Db2 Connect Server) 10.5, 11.1, and 11.5 is vulnerable to a denial of service as the server may crash when using a specially crafted subquery. IBM X-Force ID: 249196.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
输入验证不恰当
Source: CVE Program / CVE List V5
Vulnerability Title
IBM DB2 输入验证错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
IBM DB2是美国国际商业机器（IBM）公司的一套关系型数据库管理系统。该系统的执行环境主要有UNIX、Linux、IBMi、z/OS以及Windows服务器版本。 IBM Db2存在输入验证错误漏洞，该漏洞源于服务器在使用特制子查询时可能会崩溃。以下产品和版本受到影响：IBM Db2 for Linux、UNIX 和 Windows 10.5、11.1 和 11.5等版本。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
IBM Db2 for Linux, UNIX and Windows 10.5, 11.1, 11.5 -

II. Public POCs for CVE-2023-27559

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III. Intelligence Information for CVE-2023-27559

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Vendor Advisories for CVE-2023-27559 (3)

Same Patch Batch · IBM · 2023-04-26 · 5 CVEs total

CVE-2023-26286 8.4 HIGH IBM AIX privilege escalation
CVE-2022-41739 7.9 HIGH IBM Spectrum Scale privilege escalation
CVE-2022-36769 7.2 HIGH IBM Cloud Pak for Data file upload
CVE-2023-29257 7.2 HIGH IBM Db2 code execution

IV. Related Vulnerabilities

Same product: Db2 for Linux, UNIX and Windows
Same vendor: IBM
Same weakness: CWE-20

V. Comments for CVE-2023-27559

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