中危 linux linux_kernel 不加限制或调节的资源分配
CVE编号
CVE-2022-43945利用情况
暂无补丁情况
官方补丁披露时间
2022-11-05漏洞描述
The Linux kernel NFSD implementation prior to versions 5.19.17 and 6.0.2 are vulnerable to buffer overflow. NFSD tracks the number of pages held by each NFSD thread by combining the receive and send buffers of a remote procedure call (RPC) into a single array of pages. A client can force the send buffer to shrink by sending an RPC message over TCP with garbage data added at the end of the message. The RPC message with garbage data is still correctly formed according to the specification and is passed forward to handlers. Vulnerable code in NFSD is not expecting the oversized request and writes beyond the allocated buffer space. CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H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 | amazon_2 | kernel | * | Up to (excluding) 5.15.75-48.135.amzn2 | |||||
| 运行在以下环境 | |||||||||
| 系统 | amazon_2023 | kernel | * | Up to (excluding) 6.1.10-15.42.amzn2023 | |||||
| 运行在以下环境 | |||||||||
| 系统 | anolis_os_8 | kernel | * | Up to (excluding) 4.18 | |||||
| 运行在以下环境 | |||||||||
| 系统 | centos_8 | kpatch-patch | * | Up to (excluding) 4.18.0-425.13.1.el8_7 | |||||
| 运行在以下环境 | |||||||||
| 系统 | debian_10 | linux | * | Up to (including) 4.19.249-2 | |||||
| 运行在以下环境 | |||||||||
| 系统 | debian_11 | linux | * | Up to (including) 5.10.197-1 | |||||
| 运行在以下环境 | |||||||||
| 系统 | debian_12 | linux | * | Up to (excluding) 6.0.3-1 | |||||
| 运行在以下环境 | |||||||||
| 系统 | debian_sid | linux | * | Up to (excluding) 6.0.3-1 | |||||
| 运行在以下环境 | |||||||||
| 系统 | linux | linux_kernel | * | Up to (excluding) 5.19.17 | |||||
| 运行在以下环境 | |||||||||
| 系统 | linux | linux_kernel | * | From (including) 6.0 | Up to (excluding) 6.0.2 | ||||
| 运行在以下环境 | |||||||||
| 系统 | opensuse_5.2 | kernel | * | Up to (excluding) 5.3.18-150300.59.106.1 | |||||
| 运行在以下环境 | |||||||||
| 系统 | opensuse_Leap_15.3 | kernel | * | Up to (excluding) 5.3.18-150300.59.106.1 | |||||
| 运行在以下环境 | |||||||||
| 系统 | opensuse_Leap_15.4 | dtb-al | * | Up to (excluding) 5.14.21-150400.24.38.1.150400.24.13.2 | |||||
| 运行在以下环境 | |||||||||
| 系统 | oracle_8 | kernel | * | Up to (excluding) 4.18.0-425.13.1.el8_7 | |||||
| 运行在以下环境 | |||||||||
| 系统 | oracle_9 | kernel | * | Up to (excluding) 5.14.0-162.12.1.el9_1 | |||||
| 运行在以下环境 | |||||||||
| 系统 | redhat_8 | kpatch-patch | * | Up to (excluding) 4.18.0-425.13.1.el8_7 | |||||
| 运行在以下环境 | |||||||||
| 系统 | redhat_9 | kpatch-patch | * | Up to (excluding) 5.14.0-162.12.1.el9_1 | |||||
| 运行在以下环境 | |||||||||
| 系统 | suse_12_SP5 | kernel | * | Up to (excluding) 4.12.14-122.144.1 | |||||
| 运行在以下环境 | |||||||||
| 系统 | ubuntu_18.04 | linux-hwe-5.4 | * | Up to (excluding) 5.4.0-1098.107~18.04.1 | |||||
| 运行在以下环境 | |||||||||
| 系统 | ubuntu_20.04 | linux-bluefield | * | Up to (excluding) 5.4.0-1098.107 | |||||
| 运行在以下环境 | |||||||||
| 系统 | ubuntu_22.04 | linux | * | Up to (excluding) 5.15.0-1029.36 | |||||
| 运行在以下环境 | |||||||||
| 系统 | ubuntu_22.10 | linux | * | Up to (excluding) 5.19.0-1009.16 | |||||
- 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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