中危 qemu qemu 跨界内存写
CVE编号
CVE-2022-2962利用情况
暂无补丁情况
官方补丁披露时间
2022-09-14漏洞描述
A DMA reentrancy issue was found in the Tulip device emulation in QEMU. When Tulip reads or writes to the rx/tx descriptor or copies the rx/tx frame, it doesn't check whether the destination address is its own MMIO address. This can cause the device to trigger MMIO handlers multiple times, possibly leading to a stack or heap overflow. A malicious guest could use this flaw to crash the QEMU process on the host, resulting in a denial of service condition.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://gitlab.com/qemu-project/qemu/-/commit/36a894aeb64a2e02871016da1c37d4a... | |
| https://gitlab.com/qemu-project/qemu/-/issues/1171 |
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 | |||||||||
| 应用 | qemu | qemu | * | Up to (including) 7.1.0 | |||||
| 运行在以下环境 | |||||||||
| 系统 | alpine_3.17 | qemu | * | Up to (excluding) 7.1.0-r4 | |||||
| 运行在以下环境 | |||||||||
| 系统 | alpine_3.18 | qemu | * | Up to (excluding) 7.1.0-r4 | |||||
| 运行在以下环境 | |||||||||
| 系统 | alpine_edge | qemu | * | Up to (excluding) 7.1.0-r4 | |||||
| 运行在以下环境 | |||||||||
| 系统 | debian_10 | qemu | * | Up to (excluding) 3.1+dfsg-8+deb10u8 | |||||
| 运行在以下环境 | |||||||||
| 系统 | debian_11 | qemu | * | Up to (excluding) 5.2+dfsg-11+deb11u3 | |||||
| 运行在以下环境 | |||||||||
| 系统 | debian_12 | qemu | * | Up to (excluding) 1:7.1+dfsg-2 | |||||
| 运行在以下环境 | |||||||||
| 系统 | debian_sid | qemu | * | Up to (excluding) 1:7.1+dfsg-2 | |||||
| 运行在以下环境 | |||||||||
| 系统 | ubuntu_22.10 | qemu | * | Up to (excluding) 1:7.0+dfsg-7ubuntu2.1 | |||||
- 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-662 | 不恰当的同步机制 |
| CWE-787 | 跨界内存写 |
Exp相关链接
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