中危 xen xen 在移除最后引用时对内存的释放不恰当（内存泄露）
CVE编号
CVE-2022-42326利用情况
暂无补丁情况
官方补丁披露时间
2022-11-01漏洞描述
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.解决建议
建议您更新当前系统或软件至最新版，完成漏洞的修复。受影响软件情况
| # | 类型 | 厂商 | 产品 | 版本 | 影响面 | ||||
| 1 | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| 运行在以下环境 | |||||||||
| 系统 | alpine_3.14 | xen | * | Up to (excluding) 4.15.4-r0 | |||||
| 运行在以下环境 | |||||||||
| 系统 | alpine_3.15 | xen | * | Up to (excluding) 4.15.4-r0 | |||||
| 运行在以下环境 | |||||||||
| 系统 | alpine_3.16 | xen | * | Up to (excluding) 4.16.3-r0 | |||||
| 运行在以下环境 | |||||||||
| 系统 | alpine_3.17 | xen | * | Up to (excluding) 4.16.3-r0 | |||||
| 运行在以下环境 | |||||||||
| 系统 | alpine_3.18 | xen | * | Up to (excluding) 4.17.0-r0 | |||||
| 运行在以下环境 | |||||||||
| 系统 | alpine_edge | xen | * | Up to (excluding) 4.17.0-r0 | |||||
| 运行在以下环境 | |||||||||
| 系统 | debian_10 | xen | * | Up to (including) 4.11.4+107-gef32c7afa2-1 | |||||
| 运行在以下环境 | |||||||||
| 系统 | debian_11 | xen | * | Up to (excluding) 4.14.5+86-g1c354767d5-1 | |||||
| 运行在以下环境 | |||||||||
| 系统 | debian_12 | xen | * | Up to (excluding) 4.16.2+90-g0d39a6d1ae-1 | |||||
| 运行在以下环境 | |||||||||
| 系统 | debian_sid | xen | * | Up to (excluding) 4.16.2+90-g0d39a6d1ae-1 | |||||
| 运行在以下环境 | |||||||||
| 系统 | fedora_35 | xen-libs | * | Up to (excluding) 4.15.3-7.fc35 | |||||
| 运行在以下环境 | |||||||||
| 系统 | fedora_36 | xen-libs | * | Up to (excluding) 4.16.2-3.fc36 | |||||
| 运行在以下环境 | |||||||||
| 系统 | fedora_37 | xen-libs | * | Up to (excluding) 4.16.2-3.fc37 | |||||
| 运行在以下环境 | |||||||||
| 系统 | opensuse_5.2 | xen-libs | * | Up to (excluding) 4.14.5_08-150300.3.40.1 | |||||
| 运行在以下环境 | |||||||||
| 系统 | opensuse_Leap_15.3 | xen | * | Up to (excluding) 4.14.5_08-150300.3.40.1 | |||||
| 运行在以下环境 | |||||||||
| 系统 | opensuse_Leap_15.4 | xen | * | Up to (excluding) 4.16.2_08-150400.4.16.1 | |||||
| 运行在以下环境 | |||||||||
| 系统 | suse_12_SP5 | xen | * | Up to (excluding) 4.12.4_30-3.82.1 | |||||
| 运行在以下环境 | |||||||||
| 系统 | xen | xen | * | From (including) 4.9.0 | |||||
- 攻击路径 本地
- 攻击复杂度 困难
- 权限要求 普通权限
- 影响范围 有限影响
- EXP成熟度 未验证
- 补丁情况 官方补丁
- 数据保密性 无影响
- 数据完整性 无影响
- 服务器危害 无影响
- 全网数量 N/A
| CWE-ID | 漏洞类型 |
| CWE-401 | 在移除最后引用时对内存的释放不恰当（内存泄露） |
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