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CVE-2021-43056

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.

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 powerpc 5.14.15之前版本存在安全漏洞，该漏洞源于当主机运行在Power8上时，由于arch/powerpc/kvm/book3s_hv_rmhandlers在处理SRR1寄存器值时的实现错误，这允许恶意的KVM客户机使主机崩溃。

AI Predicted 7.8 Difficulty: Moderate EPSS 0.37% · P30
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I. Basic Information for CVE-2021-43056

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
An issue was discovered in the Linux kernel for powerpc before 5.14.15. It allows a malicious KVM guest to crash the host, when the host is running on Power8, due to an arch/powerpc/kvm/book3s_hv_rmhandlers.S implementation bug in the handling of the SRR1 register values.
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
Linux kernel 安全漏洞
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 powerpc 5.14.15之前版本存在安全漏洞，该漏洞源于当主机运行在Power8上时，由于arch/powerpc/kvm/book3s_hv_rmhandlers在处理SRR1寄存器值时的实现错误，这允许恶意的KVM客户机使主机崩溃。
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-2021-43056

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III. Intelligence Information for CVE-2021-43056

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Mailing List Discussions for CVE-2021-43056 (4)

Other References for CVE-2021-43056 (3)

Same Patch Batch · n/a · 2021-10-28 · 19 CVEs total

CVE-2021-22096 Vmware Spring Framework 安全漏洞
CVE-2020-23549 IrfanView 安全漏洞
CVE-2020-23546 IrfanView 安全漏洞
CVE-2021-36551 Tiki Wiki 跨站脚本漏洞
CVE-2021-36550 Tiki Wiki 跨站脚本漏洞
CVE-2021-36548 Monstra CMS 代码问题漏洞
CVE-2021-36547 Mara CMS 代码问题漏洞
CVE-2020-25422 Mara CMS 跨站脚本漏洞
CVE-2021-22097 Spring AMQP 代码问题漏洞
CVE-2021-43057 Linux kernel 资源管理错误漏洞
CVE-2021-22047 VMware Spring Security 安全漏洞
CVE-2021-22044 Spring Cloud OpenFeign 安全漏洞
CVE-2021-41728 Sourcecodester News247 Cms 跨站脚本漏洞
CVE-2020-22312 Hznuoj 跨站脚本漏洞
CVE-2021-37254 M-Files Web 授权问题漏洞
CVE-2021-37915 Grandstream Ht801 安全漏洞
CVE-2021-37748 Grandstream Ht801 缓冲区错误漏洞
CVE-2019-19810 ZOOM Zoom Call Recording 代码问题漏洞

IV. Related Vulnerabilities

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

V. Comments for CVE-2021-43056

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