中危 xen xen 不加限制或调节的资源分配
CVE编号
CVE-2022-42318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 let run xenstored out of memory T[his CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE.] Malicious guests can cause xenstored to allocate vast amounts of memory, eventually resulting in a Denial of Service (DoS) of xenstored. There are multiple ways how guests can cause large memory allocations in xenstored: - - by issuing new requests to xenstored without reading the responses, causing the responses to be buffered in memory - - by causing large number of watch events to be generated via setting up multiple xenstore watches and then e.g. deleting many xenstore nodes below the watched path - - by creating as many nodes as allowed with the maximum allowed size and path length in as many transactions as possible - - by accessing many nodes inside a transaction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 | - | - | |||||
- 攻击路径 本地
- 攻击复杂度 复杂
- 权限要求 普通权限
- 影响范围 越权影响
- EXP成熟度 未验证
- 补丁情况 官方补丁
- 数据保密性 数据泄露
- 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-770 | 不加限制或调节的资源分配 |
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