低危 qemu qemu 空指针解引用
CVE编号
CVE-2020-35503利用情况
暂无补丁情况
官方补丁披露时间
2021-06-02漏洞描述
A NULL pointer dereference flaw was found in the megasas-gen2 SCSI host bus adapter emulation of QEMU in versions before and including 6.0. This issue occurs in the megasas_command_cancelled() callback function while dropping a SCSI request. This flaw allows a privileged guest user to crash the QEMU process on the host, resulting in a denial of service. The highest threat from this vulnerability is to system availability.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 |
|
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https://bugzilla.redhat.com/show_bug.cgi?id=1910346 | |
https://security.netapp.com/advisory/ntap-20210720-0008/ |
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 | |||||
运行在以下环境 | |||||||||
系统 | alpine_3.16 | qemu | * | Up to (excluding) 6.1.0-r0 | |||||
运行在以下环境 | |||||||||
系统 | alpine_3.17 | qemu | * | Up to (excluding) 6.1.0-r0 | |||||
运行在以下环境 | |||||||||
系统 | alpine_3.18 | qemu | * | Up to (excluding) 6.1.0-r0 | |||||
运行在以下环境 | |||||||||
系统 | alpine_edge | qemu | * | Up to (excluding) 6.1.0-r0 | |||||
运行在以下环境 | |||||||||
系统 | debian_10 | qemu | * | Up to (including) 3.1+dfsg-8+deb10u8 | |||||
运行在以下环境 | |||||||||
系统 | debian_11 | qemu | * | Up to (including) 5.2+dfsg-11+deb11u3 | |||||
运行在以下环境 | |||||||||
系统 | debian_12 | qemu | * | Up to (including) 7.2+dfsg-7+deb12u2 | |||||
运行在以下环境 | |||||||||
系统 | debian_9 | qemu | * | Up to (including) 2.8+dfsg-6+deb9u9 | |||||
运行在以下环境 | |||||||||
系统 | debian_sid | qemu | * | Up to (including) 8.1.2+ds-1 | |||||
运行在以下环境 | |||||||||
系统 | opensuse_Leap_15.2 | qemu-lang | * | Up to (excluding) 4.2.1-lp152.9.20.1 | |||||
运行在以下环境 | |||||||||
系统 | opensuse_Leap_15.3 | qemu-s390 | * | Up to (excluding) 5.2.0-103.2 | |||||
运行在以下环境 | |||||||||
系统 | suse_12_SP5 | qemu | * | Up to (excluding) 3.1.1.1-57.2 | |||||
运行在以下环境 | |||||||||
系统 | ubuntu_18.04.5_lts | qemu | * | Up to (excluding) 2021-09-16 | |||||
- 攻击路径 远程
- 攻击复杂度 容易
- 权限要求 无需权限
- 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 无影响
- 数据完整性 传输被破坏
- 服务器危害 DoS
- 全网数量 N/A
CWE-ID | 漏洞类型 |
CWE-476 | 空指针解引用 |
Exp相关链接

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