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CVE-2021-29777

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 for Linux、UNIX和Windows(包括Db2 Connect Server)存在安全漏洞，该漏洞源于在一个表在另一个会话中被访问时被删除的特定情况下，可以允许经过身份验证的用户导致拒绝服务。

AI Predicted 5.5 Difficulty: Moderate EPSS 1.37% · P69

Possible ATT&CK Techniques 1 AI

T1499 · Endpoint Denial of Service
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I. Basic Information for CVE-2021-29777

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
IBM Db2 for Linux, UNIX and Windows (includes Db2 Connect Server) 9.7, 10.1, 10.5, 11.1, and 11.5, under specific circumstance of a table being dropped while being accessed in another session, could allow an authenticated user to cause a denial of srevice IBM X-Force ID: 203031.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
IBM DB2 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
IBM DB2是美国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 for Linux、UNIX和Windows(包括Db2 Connect Server)存在安全漏洞，该漏洞源于在一个表在另一个会话中被访问时被删除的特定情况下，可以允许经过身份验证的用户导致拒绝服务。
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 -

II. Public POCs for CVE-2021-29777

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III. Intelligence Information for CVE-2021-29777

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Vendor Advisories for CVE-2021-29777 (3)

Same Patch Batch · IBM · 2021-06-24 · 5 CVEs total

CVE-2020-4885 IBM DB2 后置链接漏洞
CVE-2020-4945 IBM DB2 安全漏洞
CVE-2021-20579 IBM DB2 信息泄露漏洞
CVE-2021-29703 IBM DB2 命令注入漏洞

IV. Related Vulnerabilities

Same product: DB2 for Linux, UNIX and Windows
Same vendor: IBM

V. Comments for CVE-2021-29777

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