CVE-2020-2732
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I. Basic Information for CVE-2020-2732
Vulnerability Information
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Vulnerability Title
N/A
Source: NVD (National Vulnerability Database)
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: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:A/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:N
Source: NVD (National Vulnerability Database)
Vulnerability Type
N/A
Source: NVD (National Vulnerability Database)
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
| # | POC Description | Source Link | Shenlong Link |
|---|
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- https://linux.oracle.com/errata/ELSA-2020-5540.htmlx_refsource_MISC
- https://bugzilla.redhat.com/show_bug.cgi?id=1805135x_refsource_MISC
- https://linux.oracle.com/errata/ELSA-2020-5542.htmlx_refsource_MISC
- https://www.spinics.net/lists/kvm/msg208259.htmlx_refsource_MISC
- https://linux.oracle.com/errata/ELSA-2020-5543.htmlx_refsource_MISC
- https://www.openwall.com/lists/oss-security/2020/02/25/3x_refsource_MISC
- https://nvd.nist.gov/vuln/detail/CVE-2020-2732
IV. Related Vulnerabilities
V. Comments for CVE-2020-2732
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