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CVE-2022-42331

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，该漏洞源于对最原始的 Spectre/Meltdown 安全工作的疏忽，导致存在推测漏洞。

AI Predicted 5.3 Difficulty: Hard EPSS 0.27% · P20

Possible ATT&CK Techniques 1 AI

T1053.004
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I. Basic Information for CVE-2022-42331

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
x86: speculative vulnerability in 32bit SYSCALL path Due to an oversight in the very original Spectre/Meltdown security work (XSA-254), one entrypath performs its speculation-safety actions too late. In some configurations, there is an unprotected RET instruction which can be attacked with a variety of speculative attacks.
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（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，该漏洞源于对最原始的 Spectre/Meltdown 安全工作的疏忽，导致存在推测漏洞。
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-429 -

II. Public POCs for CVE-2022-42331

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III. Intelligence Information for CVE-2022-42331

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Vendor Advisories for CVE-2022-42331 (2)

Mailing List Discussions for CVE-2022-42331 (3)

Other References for CVE-2022-42331 (2)

Same Patch Batch · Xen · 2023-03-21 · 4 CVEs total

CVE-2022-42332 Xen 资源管理错误漏洞
CVE-2022-42333 Xen 安全漏洞
CVE-2022-42334 Xen 安全漏洞

IV. Related Vulnerabilities

Same product: xen
Same vendor: Xen

V. Comments for CVE-2022-42331

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