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CVE-2020-29570

Quick assessment

Affected
n/a n/a
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.

Xen是英国Cambridge大学的一款开源的虚拟机监视器产品。该产品能够使不同和不兼容的操作系统运行在同一台计算机上，并支持在运行时进行迁移，保证正常运行并且避免宕机。Service是个人开发者的一款用于Windows和Linux的计算机监控和教室管理软件。该软件使教师可以查看和控制计算机实验室并与学生互动。 Xen through 4.14.x 存在安全漏洞，该漏洞源于记录由Xen维护的每vcpu控制块映射和控制块指针的映射是相反的。使用者看到前者已初始化，就假定后者也已准备好使用。恶意内核或漏洞百出

AI Predicted 7.8 Difficulty: Moderate EPSS 0.38% · P30
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I. Basic Information for CVE-2020-29570

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
An issue was discovered in Xen through 4.14.x. Recording of the per-vCPU control block mapping maintained by Xen and that of pointers into the control block is reversed. The consumer assumes, seeing the former initialized, that the latter are also ready for use. Malicious or buggy guest kernels can mount a Denial of Service (DoS) attack affecting the entire system.
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
Xen 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Xen是英国Cambridge大学的一款开源的虚拟机监视器产品。该产品能够使不同和不兼容的操作系统运行在同一台计算机上，并支持在运行时进行迁移，保证正常运行并且避免宕机。Service是个人开发者的一款用于Windows和Linux的计算机监控和教室管理软件。该软件使教师可以查看和控制计算机实验室并与学生互动。 Xen through 4.14.x 存在安全漏洞，该漏洞源于记录由Xen维护的每vcpu控制块映射和控制块指针的映射是相反的。使用者看到前者已初始化，就假定后者也已准备好使用。恶意内核或漏洞百出
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
- n/a n/a -

II. Public POCs for CVE-2020-29570

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III. Intelligence Information for CVE-2020-29570

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Vendor Advisories for CVE-2020-29570 (2)

Mailing List Discussions for CVE-2020-29570 (3)

Other References for CVE-2020-29570 (1)

Same Patch Batch · n/a · 2020-12-15 · 116 CVEs total

CVE-2020-28442 7.5 HIGH Prototype Pollution
CVE-2020-28456 7.3 HIGH Cross-site Scripting (XSS)
CVE-2020-28457 7.2 HIGH Cross-site Scripting (XSS)
CVE-2020-27055 Google Android 安全漏洞
CVE-2020-29482 Xen 代码问题漏洞
CVE-2020-29480 Xen 授权问题漏洞
CVE-2020-29479 Xen 权限许可和访问控制问题漏洞
CVE-2020-29571 Xen 代码问题漏洞
CVE-2020-29569 Linux kernel 资源管理错误漏洞
CVE-2020-27777 Linux kernel 授权问题漏洞
CVE-2020-25712 xorg-x11-server 缓冲区错误漏洞
CVE-2020-29568 Xen 缓冲区错误漏洞
CVE-2020-29567 Xen 安全漏洞
CVE-2020-29566 Xen 处理逻辑错误漏洞
CVE-2020-27068 Google Android 缓冲区错误漏洞
CVE-2020-27067 Google Android 资源管理错误漏洞
CVE-2020-27066 Google Android 资源管理错误漏洞
CVE-2020-27048 Google Android 缓冲区错误漏洞
CVE-2020-27047 Google Android 缓冲区错误漏洞
CVE-2020-27046 Google Android 缓冲区错误漏洞

Showing top 20 of 116 CVEs. View all on vendor page → →

IV. Related Vulnerabilities

Same product: n/a
Same vendor: n/a

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