CVE编号
CVE-2021-3595利用情况
暂无补丁情况
没有补丁披露时间
2021-06-16漏洞描述
An invalid pointer initialization issue was found in the SLiRP networking implementation of QEMU. The flaw exists in the tftp_input() function and could occur while processing a udp packet that is smaller than the size of the 'tftp_t' structure. This issue may lead to out-of-bounds read access or indirect host memory disclosure to the guest. The highest threat from this vulnerability is to data confidentiality. This flaw affects libslirp versions prior to 4.6.0.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=1970489 | |
| https://lists.debian.org/debian-lts-announce/2021/09/msg00000.html | |
| https://lists.fedoraproject.org/archives/list/[email protected]... | |
| https://lists.fedoraproject.org/archives/list/[email protected]... | |
| https://security.gentoo.org/glsa/202107-44 | |
| https://security.netapp.com/advisory/ntap-20210805-0004/ |
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 | libslirp_project | libslirp | * |
Up to (excluding) 4.6.0 |
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| 运行在以下环境 | |||||||||
| 系统 | alpine_3.14 | qemu | * |
Up to (excluding) 4.6.0-r0 |
|||||
| 运行在以下环境 | |||||||||
| 系统 | alpine_3.15 | qemu | * |
Up to (excluding) 4.6.0-r0 |
|||||
| 运行在以下环境 | |||||||||
| 系统 | alpine_edge | qemu | * |
Up to (excluding) 4.6.0-r0 |
|||||
| 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) 4.4.0-1+deb11u2 |
|||||
| 运行在以下环境 | |||||||||
| 系统 | debian_9 | qemu | * |
Up to (excluding) 1:2.8+dfsg-6+deb9u15 |
|||||
| 运行在以下环境 | |||||||||
| 系统 | debian_sid | qemu | * |
Up to (excluding) 4.4.0-1 |
|||||
| 运行在以下环境 | |||||||||
| 系统 | fedora_33 | qemu | * |
Up to (excluding) 4.3.1-5.fc33 |
|||||
| 运行在以下环境 | |||||||||
| 系统 | fedora_34 | qemu | * |
Up to (excluding) 4.4.0-4.fc34 |
|||||
| 运行在以下环境 | |||||||||
| 系统 | opensuse_Leap_15.2 | qemu | * |
Up to (excluding) 4.2.1-lp152.9.20.1 |
|||||
| 运行在以下环境 | |||||||||
| 系统 | opensuse_Leap_15.3 | qemu | * |
Up to (excluding) 4.2.1-11.25.2 |
|||||
| 运行在以下环境 | |||||||||
| 系统 | oracle_7 | qemu | * |
Up to (excluding) 4.2.1-13.el7 |
|||||
| 运行在以下环境 | |||||||||
| 系统 | oracle_8 | qemu | * |
Up to (excluding) 6.0.0-37.0.1.module+el8.5.0+20363+3abb8f5b |
|||||
| 运行在以下环境 | |||||||||
| 系统 | suse_12_SP5 | qemu | * |
Up to (excluding) 4.12.4_12-3.49.1 |
|||||
| 运行在以下环境 | |||||||||
| 系统 | ubuntu_18.04 | qemu | * |
Up to (excluding) 1:2.11+dfsg-1ubuntu7.37 |
|||||
| 运行在以下环境 | |||||||||
| 系统 | ubuntu_18.04.5_lts | qemu | * |
Up to (excluding) 1:2.11+dfsg-1ubuntu7.37 |
|||||
| 运行在以下环境 | |||||||||
| 系统 | ubuntu_20.04 | qemu | * |
Up to (excluding) 4.1.0-2ubuntu2.2 |
|||||
| 运行在以下环境 | |||||||||
| 系统 | ubuntu_21.04 | qemu | * |
Up to (excluding) 4.4.0-1ubuntu0.1 |
|||||
- 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 越权影响
- EXP成熟度 N/A
- 补丁情况 没有补丁
- 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
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