中危 linux linux_kernel 整数溢出或超界折返
CVE编号
CVE-2022-39842利用情况
暂无补丁情况
官方补丁披露时间
2022-09-05漏洞描述
An issue was discovered in the Linux kernel before 5.19. In pxa3xx_gcu_write in drivers/video/fbdev/pxa3xx-gcu.c, the count parameter has a type conflict of size_t versus int, causing an integer overflow and bypassing the size check. After that, because it is used as the third argument to copy_from_user(), a heap overflow may occur.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 | alibaba_cloud_linux_2.1903 | kernel | * | Up to (excluding) 4.19.91-27.1.al7 | |||||
| 运行在以下环境 | |||||||||
| 系统 | amazon_2 | kernel | * | Up to (excluding) 4.14.296-222.539.amzn2 | |||||
| 运行在以下环境 | |||||||||
| 系统 | amazon_2022 | kernel | * | Up to (excluding) 5.15.73-45.135.amzn2022 | |||||
| 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 | amazon_AMI | kernel | * | Up to (excluding) 4.14.299-152.520.amzn1 | |||||
| 运行在以下环境 | |||||||||
| 系统 | anolis_os_7 | kernel | * | Up to (excluding) 4.19 | |||||
| 运行在以下环境 | |||||||||
| 系统 | anolis_os_8 | kernel | * | Up to (excluding) 4.19 | |||||
| 运行在以下环境 | |||||||||
| 系统 | debian_10 | linux | * | Up to (excluding) 4.19.260-1 | |||||
| 运行在以下环境 | |||||||||
| 系统 | debian_11 | linux | * | Up to (excluding) 5.10.149-1 | |||||
| 运行在以下环境 | |||||||||
| 系统 | debian_12 | linux | * | Up to (excluding) 5.19.6-1 | |||||
| 运行在以下环境 | |||||||||
| 系统 | debian_sid | linux | * | Up to (excluding) 5.19.6-1 | |||||
| 运行在以下环境 | |||||||||
| 系统 | kylinos_aarch64_V10SP2 | kernel | * | Up to (excluding) 4.19.90-25.20.v2101.ky10 | |||||
| 运行在以下环境 | |||||||||
| 系统 | kylinos_x86_64_V10SP2 | kernel | * | Up to (excluding) 4.19.90-25.20.v2101.ky10 | |||||
| 运行在以下环境 | |||||||||
| 系统 | linux | linux_kernel | * | Up to (excluding) 5.19 | |||||
| 运行在以下环境 | |||||||||
| 系统 | linux | linux_kernel | 5.19 | - | |||||
| 运行在以下环境 | |||||||||
| 系统 | ubuntu_18.04 | linux-hwe-5.4 | * | Up to (excluding) 5.4.0-1041.46~18.04.1 | |||||
| 运行在以下环境 | |||||||||
| 系统 | ubuntu_20.04 | linux-bluefield | * | Up to (excluding) 5.15.0-1030.37~20.04.1 | |||||
| 运行在以下环境 | |||||||||
| 系统 | ubuntu_22.04 | linux | * | Up to (excluding) 5.15.0-1026.32 | |||||
| 运行在以下环境 | |||||||||
| 系统 | unionos_a | kernel | * | Up to (excluding) 4.19.0-91.82.125.uelc20 | |||||
| 运行在以下环境 | |||||||||
| 系统 | unionos_d | kernel | * | Up to (excluding) 4.19.90-5049 | |||||
| 运行在以下环境 | |||||||||
| 系统 | unionos_e | kernel | * | Up to (excluding) 4.19.90-2209.5.0.0169.2.uel20 | |||||
- 攻击路径 本地
- 攻击复杂度 复杂
- 权限要求 无需权限
- 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-190 | 整数溢出或超界折返 |
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