CVE编号
CVE-2022-21682利用情况
暂无补丁情况
N/A披露时间
2022-01-14漏洞描述
Flatpak is a Linux application sandboxing and distribution framework. A path traversal vulnerability affects versions of Flatpak prior to 1.12.3 and 1.10.6. flatpak-builder applies `finish-args` last in the build. At this point the build directory will have the full access that is specified in the manifest, so running `flatpak build` against it will gain those permissions. Normally this will not be done, so this is not problem. However, if `--mirror-screenshots-url` is specified, then flatpak-builder will launch `flatpak build --nofilesystem=host appstream-utils mirror-screenshots` after finalization, which can lead to issues even with the `--nofilesystem=host` protection. In normal use, the only issue is that these empty directories can be created wherever the user has write permissions. However, a malicious application could replace the `appstream-util` binary and potentially do something more hostile. This has been resolved in Flatpak 1.12.3 and 1.10.6 by changing the behaviour of `--nofilesystem=home` and `--nofilesystem=host`.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://github.com/flatpak/flatpak/commit/445bddeee657fdc8d2a0a1f0de12975400d4fc1a | |
| https://github.com/flatpak/flatpak/commit/4d11f77aa7fd3e64cfa80af89d92567ab9e8e6fa | |
| https://github.com/flatpak/flatpak/security/advisories/GHSA-8ch7-5j3h-g4fx | |
| https://lists.fedoraproject.org/archives/list/[email protected]... | |
| https://lists.fedoraproject.org/archives/list/[email protected]... | |
| https://www.debian.org/security/2022/dsa-5049 |
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 | flatpak | flatpak | * |
Up to (excluding) 1.10.7 |
|||||
| 运行在以下环境 | |||||||||
| 应用 | flatpak | flatpak | * |
From (including) 1.11.1 |
Up to (excluding) 1.12.4 |
||||
| 运行在以下环境 | |||||||||
| 应用 | flatpak | flatpak-builder | * |
Up to (excluding) 1.2.2 |
|||||
| 运行在以下环境 | |||||||||
| 系统 | alpine_3.15 | flatpak | * |
Up to (excluding) 1.12.5-r0 |
|||||
| 运行在以下环境 | |||||||||
| 系统 | alpine_edge | flatpak | * |
Up to (excluding) 1.12.5-r0 |
|||||
| 运行在以下环境 | |||||||||
| 系统 | debian_10 | flatpak | * |
Up to (excluding) 1.2.5-0+deb10u4 |
|||||
| 运行在以下环境 | |||||||||
| 系统 | debian_11 | flatpak | * |
Up to (excluding) 1.10.7-0+deb11u1 |
|||||
| 运行在以下环境 | |||||||||
| 系统 | debian_9 | flatpak | * |
Up to (excluding) 0.8.9-0+deb9u3 |
|||||
| 运行在以下环境 | |||||||||
| 系统 | fedora_34 | flatpak-session-helper-debuginfo | * |
Up to (excluding) 1.10.7-1.fc34 |
|||||
| 运行在以下环境 | |||||||||
| 系统 | fedora_35 | flatpak-session-helper-debuginfo | * |
Up to (excluding) 1.12.4-1.fc35 |
|||||
| 运行在以下环境 | |||||||||
| 系统 | opensuse_Leap_15.3 | flatpak | * |
Up to (excluding) 1.10.7-4.12.1 |
|||||
- 攻击路径 网络
- 攻击复杂度 低
- 权限要求 低
- 影响范围 未更改
- 用户交互 无
- 可用性 无
- 保密性 无
- 完整性 高
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