Vulnerability Data

Vulnerability RAW

{
	"Title": {
		"_text": "CVE-2022-21682"
	},
	"Notes": {
		"Note": [
			{
				"_text": "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`."
			},
			{
				"_text": "2022-01-13"
			},
			{
				"_text": "2022-01-13"
			}
		]
	},
	"CVE": {
		"_text": "CVE-2022-21682"
	},
	"References": {
		"Reference": [
			{
				"URL": {
					"_text": "https://github.com/flatpak/flatpak/security/advisories/GHSA-8ch7-5j3h-g4fx"
				},
				"Description": {
					"_text": "CONFIRM:https://github.com/flatpak/flatpak/security/advisories/GHSA-8ch7-5j3h-g4fx"
				}
			},
			{
				"URL": {
					"_text": "https://github.com/flatpak/flatpak/commit/445bddeee657fdc8d2a0a1f0de12975400d4fc1a"
				},
				"Description": {
					"_text": "MISC:https://github.com/flatpak/flatpak/commit/445bddeee657fdc8d2a0a1f0de12975400d4fc1a"
				}
			},
			{
				"URL": {
					"_text": "https://github.com/flatpak/flatpak/commit/4d11f77aa7fd3e64cfa80af89d92567ab9e8e6fa"
				},
				"Description": {
					"_text": "MISC:https://github.com/flatpak/flatpak/commit/4d11f77aa7fd3e64cfa80af89d92567ab9e8e6fa"
				}
			}
		]
	}
}