CVE-2020-27671
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是英国剑桥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。 Xen 4.14.x 系列版本及之前版本存在安全漏洞，该漏洞允许x86 HVM和PVH来宾用户导致拒绝服务，导致数据泄漏或可能获得特权。
Possible ATT&CK Techniques 3 AI
T1068 · Exploitation for Privilege Escalation T1123 · Audio Capture T1498 · Network Denial of Service
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I. Basic Information for CVE-2020-27671
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 allowing x86 HVM and PVH guest OS users to cause a denial of service (data corruption), cause a data leak, or possibly gain privileges because coalescing of per-page IOMMU TLB flushes is mishandled.
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是英国剑桥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。 Xen 4.14.x 系列版本及之前版本存在安全漏洞，该漏洞允许x86 HVM和PVH来宾用户导致拒绝服务，导致数据泄漏或可能获得特权。
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 | - |
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II. Public POCs for CVE-2020-27671
| # | POC Description | Source Link | Shenlong Link |
|---|
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Vendor Advisories for CVE-2020-27671 (2)
Mailing List Discussions for CVE-2020-27671 (4)
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http://lists.opensuse.org/opensuse-security-announce/2020-11/msg00025.html vendor-advisory x_refsource_SUSE
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http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00075.html vendor-advisory x_refsource_SUSE
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https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/XIK57QJOVOPWH6RFRNMGOBCROBCKMDG2/ vendor-advisory x_refsource_FEDORA
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Other References for CVE-2020-27671 (2)
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http://xenbits.xen.org/xsa/advisory-346.html x_refsource_CONFIRM
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https://xenbits.xen.org/xsa/advisory-346.html x_refsource_MISC
Same Patch Batch · n/a · 2020-10-22 · 30 CVEs total
| CVE-2019-16127 | Microchip Atmel Advanced Software Framework 输入验证错误漏洞 | |
| CVE-2020-27670 | Xen 数据伪造问题漏洞 | |
| CVE-2020-27672 | Xen 资源管理错误漏洞 | |
| CVE-2020-27673 | Linux kernel 资源管理错误漏洞 | |
| CVE-2020-27674 | Xen 缓冲区错误漏洞 | |
| CVE-2020-27675 | Linux kernel 资源管理错误漏洞 | |
| CVE-2020-18129 | 赞赞网络科技 EyouCms 跨站请求伪造漏洞 | |
| CVE-2020-3996 | Velero 信息泄露漏洞 | |
| CVE-2020-25186 | WECON Technologies LeviStudioU 代码问题漏洞 | |
| CVE-2020-10721 | fabric8-maven-plugin 代码问题漏洞 | |
| CVE-2019-16128 | Microchip CryptoAuthLib 缓冲区错误漏洞 | |
| CVE-2019-16129 | Microchip CryptoAuthLib 缓冲区错误漏洞 | |
| CVE-2020-27664 | Strapi 安全漏洞 | |
| CVE-2020-27665 | Strapi 安全漏洞 | |
| CVE-2020-27666 | Strapi 跨站脚本漏洞 | |
| CVE-2020-27560 | ImageMagick Studio ImageMagick 数字错误漏洞 | |
| CVE-2020-15906 | Tiki 安全漏洞 | |
| CVE-2020-27155 | Octopus Deploy 安全漏洞 | |
| CVE-2020-27195 | Hashicorp Nomad Enterprise 安全漏洞 | |
| CVE-2020-27533 | Desdev DedeCMS 跨站脚本漏洞 |
Showing top 20 of 30 CVEs. View all on vendor page → →
IV. Related Vulnerabilities
V. Comments for CVE-2020-27671
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