google android 跨界内存读

CVE编号

CVE-2021-0942

利用情况

暂无

补丁情况

N/A

披露时间

2022-09-14

漏洞描述

The path in this case is a little bit convoluted. The end result is that via an ioctl an untrusted app can control the ui32PageIndex offset in the expression:sPA.uiAddr = page_to_phys(psOSPageArrayData->pagearray[ui32PageIndex]);With the current PoC this crashes as an OOB read. However, given that the OOB read value is ending up as the address field of a struct I think i seems plausible that this could lead to an OOB write if the attacker is able to cause the OOB read to pull an interesting kernel address. Regardless if this is a read or write, it is a High severity issue in the kernel.Product: AndroidVersions: Android SoCAndroid ID: A-238904312

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://source.android.com/security/bulletin/2022-09-01

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	google	android	-	-

CVSS3评分 9.8

• 攻击路径 网络
• 攻击复杂度 低
• 权限要求 无
• 影响范围 未更改
• 用户交互 无
• 可用性 高
• 保密性 高
• 完整性 高

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CWE-ID	漏洞类型
CWE-125	跨界内存读

Exp相关链接

- avd.aliyun.com