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CVE-2020-2732

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基金会发布的开源操作系统Linux所使用的内核。 Linux kernel中存在信息泄露漏洞，该漏洞源于KVM未完全实现’’vmx_check_intercept’’函数。攻击者可利用该漏洞访问敏感的L1资源。

CVSS 5.8 · Medium EPSS 0.93% · P57

Possible ATT&CK Techniques 1 AI

T1620 · Reflective Code Loading
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I. Basic Information for CVE-2020-2732

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
A flaw was discovered in the way that the KVM hypervisor handled instruction emulation for an L2 guest when nested virtualisation is enabled. Under some circumstances, an L2 guest may trick the L0 guest into accessing sensitive L1 resources that should be inaccessible to the L2 guest.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:A/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
Linux kernel 信息泄露漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Linux kernel是美国Linux基金会发布的开源操作系统Linux所使用的内核。 Linux kernel中存在信息泄露漏洞，该漏洞源于KVM未完全实现’’vmx_check_intercept’’函数。攻击者可利用该漏洞访问敏感的L1资源。
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 7 -

II. Public POCs for CVE-2020-2732

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III. Intelligence Information for CVE-2020-2732

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Vendor Advisories for CVE-2020-2732 (3)

Mailing List Discussions for CVE-2020-2732 (4)

Other References for CVE-2020-2732 (7)

IV. Related Vulnerabilities

Same product: Oracle Linux
Same vendor: Oracle Corporation

V. Comments for CVE-2020-2732

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