中危 Xen 拒绝服务漏洞(CVE-2022-42333)
CVE编号
CVE-2022-42333利用情况
暂无补丁情况
官方补丁披露时间
2023-03-21漏洞描述
x86/HVM pinned cache attributes mis-handling T[his CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE.] To allow cachability control for HVM guests with passed through devices, an interface exists to explicitly override defaults which would otherwise be put in place. While not exposed to the affected guests themselves, the interface specifically exists for domains controlling such guests. This interface may therefore be used by not fully privileged entities, e.g. qemu running deprivileged in Dom0 or qemu running in a so called stub-domain. With this exposure it is an issue that - the number of the such controlled regions was unbounded (CVE-2022-42333), - installation and removal of such regions was not properly serialized (CVE-2022-42334).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_3.15 | xen | * | Up to (excluding) 4.15.5-r0 | |||||
| 运行在以下环境 | |||||||||
| 系统 | alpine_3.16 | xen | * | Up to (excluding) 4.16.4-r0 | |||||
| 运行在以下环境 | |||||||||
| 系统 | alpine_3.17 | xen | * | Up to (excluding) 4.16.4-r0 | |||||
| 运行在以下环境 | |||||||||
| 系统 | alpine_3.18 | xen | * | Up to (excluding) 4.17.0-r5 | |||||
| 运行在以下环境 | |||||||||
| 系统 | alpine_edge | xen | * | Up to (excluding) 4.17.0-r5 | |||||
| 运行在以下环境 | |||||||||
| 系统 | debian | debian_linux | 11.0 | - | |||||
| 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+94-ge49571868d-1 | |||||
| 运行在以下环境 | |||||||||
| 系统 | debian_12 | xen | * | Up to (excluding) 4.17.0+74-g3eac216e6e-1 | |||||
| 运行在以下环境 | |||||||||
| 系统 | debian_sid | xen | * | Up to (excluding) 4.17.0+74-g3eac216e6e-1 | |||||
| 运行在以下环境 | |||||||||
| 系统 | fedoraproject | fedora | 37 | - | |||||
| 运行在以下环境 | |||||||||
| 系统 | fedoraproject | fedora | 38 | - | |||||
| 运行在以下环境 | |||||||||
| 系统 | fedora_36 | xen | * | Up to (excluding) 4.16.3-4.fc36 | |||||
| 运行在以下环境 | |||||||||
| 系统 | fedora_37 | xen | * | Up to (excluding) 4.16.3-4.fc37 | |||||
| 运行在以下环境 | |||||||||
| 系统 | fedora_38 | xen-ocaml-devel | * | Up to (excluding) 4.17.0-8.fc38 | |||||
| 运行在以下环境 | |||||||||
| 系统 | opensuse_5.3 | xen-libs | * | Up to (excluding) 4.16.3_06-150400.4.25.1 | |||||
| 运行在以下环境 | |||||||||
| 系统 | opensuse_Leap_15.4 | xen | * | Up to (excluding) 4.16.3_06-150400.4.25.1 | |||||
| 运行在以下环境 | |||||||||
| 系统 | suse_12_SP5 | xen | * | Up to (excluding) 4.12.4_34-3.88.1 | |||||
| 运行在以下环境 | |||||||||
| 系统 | xen | xen | * | From (including) 4.11.0 | Up to (including) 4.17.0 | ||||
- 攻击路径 本地
- 攻击复杂度 容易
- 权限要求 普通权限
- 影响范围 全局影响
- 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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