CVE编号
CVE-2021-4202利用情况
暂无补丁情况
N/A披露时间
2022-03-26漏洞描述
A use-after-free flaw was found in nci_request in net/nfc/nci/core.c in NFC Controller Interface (NCI) in the Linux kernel. This flaw could allow a local attacker with user privileges to cause a data race problem while the device is getting removed, leading to a privilege escalation problem.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 |
|
|---|---|
| https://bugzilla.redhat.com/show_bug.cgi?id=2036682 | |
| https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=3... | |
| https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=4... | |
| https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=8... |
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 | debian_10 | linux | * |
Up to (excluding) 4.19.232-1 |
|||||
| 运行在以下环境 | |||||||||
| 系统 | debian_11 | linux | * |
Up to (excluding) 5.10.84-1 |
|||||
| 运行在以下环境 | |||||||||
| 系统 | debian_9 | linux | * |
Up to (excluding) 4.9.303-1 |
|||||
| 运行在以下环境 | |||||||||
| 系统 | linux | linux_kernel | * |
Up to (excluding) 5.16 |
|||||
| 运行在以下环境 | |||||||||
| 系统 | linux | linux_kernel | 5.16 | - | |||||
| 运行在以下环境 | |||||||||
| 系统 | opensuse_Leap_15.3 | linux | * |
Up to (excluding) 4.12.14-197.105.1 |
|||||
| 运行在以下环境 | |||||||||
| 系统 | opensuse_Leap_15.4 | linux | * |
Up to (excluding) 4.12.14-197.105.1 |
|||||
| 运行在以下环境 | |||||||||
| 系统 | suse_12_SP5 | linux | * |
Up to (excluding) 4.12.14-16.88.1 |
|||||
- 攻击路径 本地
- 攻击复杂度 高
- 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
还没有评论，来说两句吧...