CVE编号
CVE-2021-3507利用情况
暂无补丁情况
官方补丁披露时间
2021-05-07漏洞描述
A heap buffer overflow was found in the floppy disk emulator of QEMU up to 6.0.0 (including). It could occur in fdctrl_transfer_handler() in hw/block/fdc.c while processing DMA read data transfers from the floppy drive to the guest system. A privileged guest user could use this flaw to crash the QEMU process on the host resulting in DoS scenario, or potential information leakage from the host memory.解决建议
下载相关补丁
参考链接 |
|
|---|---|
| https://bugzilla.redhat.com/show_bug.cgi?id=1951118 | |
| https://security.netapp.com/advisory/ntap-20210528-0005/ |
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) 6.0.0 |
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| 运行在以下环境 | |||||||||
| 系统 | alpine_edge | qemu | * |
Up to (excluding) 6.1.0-r0 |
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| 运行在以下环境 | |||||||||
| 系统 | debian_10 | qemu | * |
Up to (excluding) 3.1+dfsg-8+deb10u8 |
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| 运行在以下环境 | |||||||||
| 系统 | debian_11 | qemu | * |
Up to (excluding) 5.2+dfsg-11+deb11u1 |
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| 运行在以下环境 | |||||||||
| 系统 | debian_12 | qemu | * |
Up to (excluding) 6.2+dfsg-2 |
|||||
| 运行在以下环境 | |||||||||
| 系统 | debian_9 | qemu | * |
Up to (excluding) 2.8+dfsg-6+deb9u9 |
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| 运行在以下环境 | |||||||||
| 系统 | debian_sid | qemu | * |
Up to (excluding) 6.2+dfsg-3 |
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| 运行在以下环境 | |||||||||
| 系统 | ubuntu_14.04.6_lts | qemu | * |
Up to (excluding) 2021-08-10 |
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| 运行在以下环境 | |||||||||
| 系统 | ubuntu_18.04.5_lts | qemu | * |
Up to (excluding) 2021-07-08 |
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- 攻击路径 本地
- 攻击复杂度 容易
- 权限要求 普通权限
- 影响范围 有限影响
- 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 传输被破坏
- 服务器危害 无影响
- 全网数量 N/A
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