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CVE-2022-42326

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。Guest是一个应用产品。 Xen Xenstore存在安全漏洞，该漏洞源于恶意访客可以通过交易创建任意数量的节点，可能会导致内存不足，从而导致拒绝服务(DoS)。

AI Predicted 7.5 Difficulty: Easy EPSS 0.29% · P22

Possible ATT&CK Techniques 1 AI

T1499 · Endpoint Denial of Service
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I. Basic Information for CVE-2022-42326

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
Xenstore: Guests can create arbitrary number of nodes via transactions T[his CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE.] In case a node has been created in a transaction and it is later deleted in the same transaction, the transaction will be terminated with an error. As this error is encountered only when handling the deleted node at transaction finalization, the transaction will have been performed partially and without updating the accounting information. This will enable a malicious guest to create arbitrary number of nodes.
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。Guest是一个应用产品。 Xen Xenstore存在安全漏洞，该漏洞源于恶意访客可以通过交易创建任意数量的节点，可能会导致内存不足，从而导致拒绝服务(DoS)。
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-421 -

II. Public POCs for CVE-2022-42326

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III. Intelligence Information for CVE-2022-42326

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Vendor Advisories for CVE-2022-42326 (2)

Mailing List Discussions for CVE-2022-42326 (4)

Other References for CVE-2022-42326 (2)

Same Patch Batch · Xen · 2022-11-01 · 19 CVEs total

CVE-2022-42318 Xen 安全漏洞
CVE-2022-42327 Xen 安全漏洞
CVE-2022-42325 Xen 安全漏洞
CVE-2022-42324 Xen 缓冲区错误漏洞
CVE-2022-42323 Xen 安全漏洞
CVE-2022-42322 Xen 安全漏洞
CVE-2022-42321 Xen 安全漏洞
CVE-2022-42320 Xen 安全漏洞
CVE-2022-42319 Xen 安全漏洞
CVE-2022-42309 Xen 安全漏洞
CVE-2022-42317 Xen 安全漏洞
CVE-2022-42316 Xen 安全漏洞
CVE-2022-42315 Xen 安全漏洞
CVE-2022-42314 Xen 安全漏洞
CVE-2022-42313 Xen 安全漏洞
CVE-2022-42312 Xen 安全漏洞
CVE-2022-42311 Xen 安全漏洞
CVE-2022-42310 Xen 安全漏洞

IV. Related Vulnerabilities

Same product: xen
Same vendor: Xen

V. Comments for CVE-2022-42326

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