CVE-2021-2481
Quick assessment
Affected
Oracle Corporation MySQL Server
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.
Oracle MySQL Server是美国甲骨文（Oracle）公司的一款关系型数据库。 MySQL Server存在输入验证错误漏洞，该漏洞的存在是由于在MySQL服务器的Server: Optimizer组件中的输入验证不正确。通过远程认证的用户可以利用该漏洞进行拒绝服务(DoS)攻击。
Possible ATT&CK Techniques 2 AI
T1190 · Exploit Public-Facing Application T1499 · Endpoint Denial of Service
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I. Basic Information for CVE-2021-2481
Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
Vulnerability in the MySQL Server product of Oracle MySQL (component: Server: Optimizer). Supported versions that are affected are 8.0.26 and prior. Easily exploitable vulnerability allows low privileged attacker with network access via multiple protocols to compromise MySQL Server. Successful attacks of this vulnerability can result in unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of MySQL Server. CVSS 3.1 Base Score 6.5 (Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H).
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
Oracle MySQL Server输入验证错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Oracle MySQL Server是美国甲骨文（Oracle）公司的一款关系型数据库。 MySQL Server存在输入验证错误漏洞，该漏洞的存在是由于在MySQL服务器的Server: Optimizer组件中的输入验证不正确。通过远程认证的用户可以利用该漏洞进行拒绝服务(DoS)攻击。
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 |
|---|---|---|---|---|
| Oracle Corporation | MySQL Server | 8.0.26 and prior | - |
|
II. Public POCs for CVE-2021-2481
| # | POC Description | Source Link | Shenlong Link |
|---|
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Vendor Advisories for CVE-2021-2481 (2)
-
https://www.oracle.com/security-alerts/cpuoct2021.html x_refsource_MISC
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https://security.netapp.com/advisory/ntap-20211022-0003/ x_refsource_CONFIRM
Mailing List Discussions for CVE-2021-2481 (2)
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https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/5MLAXYFLUDC636S46X34USCLDZAOFBM2/ vendor-advisory x_refsource_FEDORA
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https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PRCU3RTIPVKPC3GMC76YW7DJEXUEY6FG/ vendor-advisory x_refsource_FEDORA
Same Patch Batch · Oracle Corporation · 2021-10-20 · 137 CVEs total
| CVE-2021-35652 | 10.0 CRITICAL | Oracle Essbase 安全漏洞 |
| CVE-2021-35617 | 9.8 CRITICAL | Oracle Fusion Middleware和Oracle WebLogic Server 输入验证错误漏洞 |
| CVE-2021-2137 | 8.8 HIGH | Oracle Enterprise Manager Base Platform 安全漏洞 |
| CVE-2021-35651 | 8.5 HIGH | Oracle Essbase 安全漏洞 |
| CVE-2021-2461 | 8.3 HIGH | Oracle Communications 安全漏洞 |
| CVE-2021-35599 | 8.2 HIGH | Oracle Database Server 输入验证错误漏洞 |
| CVE-2021-35543 | 8.1 HIGH | Oracle PeopleSoft 安全漏洞 |
| CVE-2021-35570 | 8.1 HIGH | Oracle E-Business Suite 安全漏洞 |
| CVE-2021-35566 | 8.1 HIGH | Oracle E-Business Suite和Oracle Applications Manager 安全漏洞 |
| CVE-2021-35585 | 8.1 HIGH | Oracle E-Business Suite 安全漏洞 |
| CVE-2021-35563 | 8.1 HIGH | Oracle E-Business Suite 安全漏洞 |
| CVE-2021-35562 | 8.1 HIGH | Oracle E-Business Suite和Oracle Universal Work Queue 安全漏洞 |
| CVE-2021-35536 | 8.1 HIGH | Oracle E-Business Suite 安全漏洞 |
| CVE-2021-2485 | 8.1 HIGH | Oracle E-Business Suite和Oracle Trade Management 安全漏洞 |
| CVE-2021-2484 | 8.1 HIGH | Oracle E-Business Suite 安全漏洞 |
| CVE-2021-2482 | 8.1 HIGH | Oracle E-Business Suite 安全漏洞 |
| CVE-2021-2474 | 8.1 HIGH | Oracle E-Business Suite 安全漏洞 |
| CVE-2021-2483 | 8.1 HIGH | Oracle E-Business Suite 安全漏洞 |
| CVE-2021-35538 | 7.8 HIGH | Oracle VM VirtualBox 安全漏洞 |
| CVE-2021-35653 | 7.7 HIGH | Oracle Essbase 安全漏洞 |
Showing top 20 of 137 CVEs. View all on vendor page → →
IV. Related Vulnerabilities
V. Comments for CVE-2021-2481
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