CVE-2023-27555— IBM Db2 denial of service
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I. Basic Information for CVE-2023-27555
Vulnerability Information
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Vulnerability Title
IBM Db2 denial of service
Source: NVD (National Vulnerability Database)
Vulnerability Description
IBM Db2 for Linux, UNIX and Windows (includes DB2 Connect Server) 11.5 is vulnerable to a denial of service when attempting to use ACR client affinity for unfenced DRDA federation wrappers. IBM X-Force ID: 249187.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
Source: NVD (National Vulnerability Database)
Vulnerability Type
输入验证不恰当
Source: NVD (National Vulnerability Database)
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，该漏洞源于容易受到拒绝服务攻击，当尝试将ACR客户端关联性用于未防护的DRDA联合包装器时，服务器可能会崩溃。
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 | 11.5 | - |
II. Public POCs for CVE-2023-27555
| # | POC Description | Source Link | Shenlong Link |
|---|
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- https://www.ibm.com/support/pages/node/6985683vendor-advisory
- https://nvd.nist.gov/vuln/detail/CVE-2023-27555
Same Patch Batch · IBM · 2023-04-28 · 9 CVEs total
| CVE-2023-28528 | 8.4 HIGH | IBM AIX command execution |
| CVE-2023-26021 | 7.5 HIGH | IBM Db2 denial of service |
| CVE-2023-27556 | 6.5 MEDIUM | IBM Safer Payments denial of service |
| CVE-2023-26022 | 5.9 MEDIUM | IBM Db2 denial of service |
| CVE-2023-25930 | 5.9 MEDIUM | IBM Db2 denial of service |
| CVE-2023-27557 | 5.9 MEDIUM | IBM Safter Payments information disclosure |
| CVE-2023-27864 | 5.4 MEDIUM | IBM Maximo Asset Management HTML injection |
| CVE-2020-4729 | 5.3 MEDIUM | IBM Safer Payments denial of service |
IV. Related Vulnerabilities
Same vendor: IBM
- CVE-2026-1577
IBM® Db2® is vulnerable to a denial of service with a specia - CVE-2025-36122
IBM® Db2® is vulnerable to a denial of service with a specia - CVE-2025-14688
IBM® Db2® is vulnerable to a denial of service when fetching - CVE-2026-2311
IBM i is affected by a privilege escalation vulnerability in - CVE-2025-36180
Inadequate Pod Communication Restrictions, affects watsonx.d
Same weakness: CWE-20
V. Comments for CVE-2023-27555
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