CVE编号
CVE-2022-23033利用情况
暂无补丁情况
N/A披露时间
2022-01-25漏洞描述
arm: guest_physmap_remove_page not removing the p2m mappings The functions to remove one or more entries from a guest p2m pagetable on Arm (p2m_remove_mapping, guest_physmap_remove_page, and p2m_set_entry with mfn set to INVALID_MFN) do not actually clear the pagetable entry if the entry doesn't have the valid bit set. It is possible to have a valid pagetable entry without the valid bit set when a guest operating system uses set/way cache maintenance instructions. For instance, a guest issuing a set/way cache maintenance instruction, then calling the XENMEM_decrease_reservation hypercall to give back memory pages to Xen, might be able to retain access to those pages even after Xen started reusing them for other purposes.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。
参考链接 |
|
|---|---|
| http://www.openwall.com/lists/oss-security/2022/01/25/2 | |
| https://lists.fedoraproject.org/archives/list/[email protected]... | |
| https://xenbits.xenproject.org/xsa/advisory-393.txt |
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_3.13 | xen | * |
Up to (excluding) 4.14.5-r0 |
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| 运行在以下环境 | |||||||||
| 系统 | alpine_3.14 | xen | * |
Up to (excluding) 4.15.2-r0 |
|||||
| 运行在以下环境 | |||||||||
| 系统 | alpine_3.15 | xen | * |
Up to (excluding) 4.15.2-r0 |
|||||
| 运行在以下环境 | |||||||||
| 系统 | alpine_edge | xen | * |
Up to (excluding) 4.16.1-r0 |
|||||
| 运行在以下环境 | |||||||||
| 系统 | debian_11 | xen | * |
Up to (excluding) 4.14.4+74-gd7b22226b5-1 |
|||||
| 运行在以下环境 | |||||||||
| 系统 | debian_12 | xen | * |
Up to (excluding) 4.14.3+32-g9de3671772-1 |
|||||
| 运行在以下环境 | |||||||||
| 系统 | debian_sid | xen | * |
Up to (excluding) 4.14.3+32-g9de3671772-1 |
|||||
| 运行在以下环境 | |||||||||
| 系统 | fedora_34 | xen | * |
Up to (excluding) 4.14.3-4.fc34 |
|||||
| 运行在以下环境 | |||||||||
| 系统 | fedora_35 | xen | * |
Up to (excluding) 4.15.1-5.fc35 |
|||||
| 运行在以下环境 | |||||||||
| 系统 | opensuse_Leap_15.3 | xen | * |
Up to (excluding) 4.14.3_06-150300.3.18.2 |
|||||
| 运行在以下环境 | |||||||||
| 系统 | suse_12_SP5 | xen | * |
Up to (excluding) 4.12.4_18-3.58.2 |
|||||
| 运行在以下环境 | |||||||||
| 系统 | xen | xen | * |
From (including) 4.12.0 |
|||||
- 攻击路径 本地
- 攻击复杂度 低
- 权限要求 低
- 影响范围 未更改
- 用户交互 无
- 可用性 高
- 保密性 高
- 完整性 高
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