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CVE-2022-26357

Quick assessment

Affected
Xen xen
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（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。 Xen存在安全漏洞，该漏洞源于Xen域ID最宽可达15位，而VT-d硬件只允许少于15位的数据来保存物理设备与特定域关联的域ID。

AI Predicted 5.6 Difficulty: Hard EPSS 0.25% · P17

Possible ATT&CK Techniques 1 AI

T1041 · Exfiltration Over C2 Channel
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I. Basic Information for CVE-2022-26357

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
race in VT-d domain ID cleanup Xen domain IDs are up to 15 bits wide. VT-d hardware may allow for only less than 15 bits to hold a domain ID associating a physical device with a particular domain. Therefore internally Xen domain IDs are mapped to the smaller value range. The cleaning up of the housekeeping structures has a race, allowing for VT-d domain IDs to be leaked and flushes to be bypassed.
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 竞争条件问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Xen是英国剑桥（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。 Xen存在安全漏洞，该漏洞源于Xen域ID最宽可达15位，而VT-d硬件只允许少于15位的数据来保存物理设备与特定域关联的域ID。
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
Xen xen consult Xen advisory XSA-399 -

II. Public POCs for CVE-2022-26357

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III. Intelligence Information for CVE-2022-26357

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Vendor Advisories for CVE-2022-26357 (2)

Mailing List Discussions for CVE-2022-26357 (3)

Other References for CVE-2022-26357 (2)

Same Patch Batch · Xen · 2022-04-05 · 6 CVEs total

CVE-2022-26356 Xen 安全漏洞
CVE-2022-26358 Xen 安全漏洞
CVE-2022-26359 Xen 安全漏洞
CVE-2022-26360 Xen 安全漏洞
CVE-2022-26361 Xen 安全漏洞

IV. Related Vulnerabilities

Same product: xen
Same vendor: Xen

V. Comments for CVE-2022-26357

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