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CVE-2022-21499

Quick assessment

Affected
Oracle Corporation Oracle Linux
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.

Linux kernel是美国Linux基金会的开源操作系统Linux所使用的内核。 Linux kernel 存在缓冲区错误漏洞。攻击者利用该漏洞通过调试器绕过Linux kernel的限制，以提升他的权限。

CVSS 6.7 · Medium EPSS 0.62% · P47

Possible ATT&CK Techniques 1 AI

T1055 · Process Injection
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I. Basic Information for CVE-2022-21499

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
KGDB and KDB allow read and write access to kernel memory, and thus should be restricted during lockdown. An attacker with access to a serial port could trigger the debugger so it is important that the debugger respect the lockdown mode when/if it is triggered. CVSS 3.1 Base Score 6.7 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H).
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
Linux kernel 缓冲区错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Linux kernel是美国Linux基金会的开源操作系统Linux所使用的内核。 Linux kernel 存在缓冲区错误漏洞。攻击者利用该漏洞通过调试器绕过Linux kernel的限制，以提升他的权限。
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 Oracle Linux Oracle Linux: 6 -
Oracle Corporation Oracle VM Oracle VM: 3 -

II. Public POCs for CVE-2022-21499

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III. Intelligence Information for CVE-2022-21499

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Vendor Advisories for CVE-2022-21499 (1)

Other References for CVE-2022-21499 (1)

IV. Related Vulnerabilities

Same product: Oracle Linux
Same vendor: Oracle Corporation

V. Comments for CVE-2022-21499

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