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`.
References
Configurations
Configuration 1 (hide)
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Configuration 2 (hide)
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Configuration 3 (hide)
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Configuration 4 (hide)
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History
23 Dec 2023, 10:15
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07 Nov 2023, 03:43
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10 Feb 2022, 07:52
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| References | (FEDORA) https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/IXKBERLJRYV7KXKGXOLI6IOXVBQNN4DP/ - Mailing List, Third Party Advisory | |
| References | (DEBIAN) https://www.debian.org/security/2022/dsa-5049 - Third Party Advisory | |
| References | (FEDORA) https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/APFTBYGJJVJPFVHRXUW5PII5XOAFI4KH/ - Mailing List, Third Party Advisory |
26 Jan 2022, 21:15
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25 Jan 2022, 15:15
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24 Jan 2022, 18:58
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| CWE | CWE-22 | |
| References | (MISC) https://github.com/flatpak/flatpak/commit/445bddeee657fdc8d2a0a1f0de12975400d4fc1a - Patch, Third Party Advisory | |
| References | (CONFIRM) https://github.com/flatpak/flatpak/security/advisories/GHSA-8ch7-5j3h-g4fx - Patch, Third Party Advisory | |
| References | (MISC) https://github.com/flatpak/flatpak/commit/4d11f77aa7fd3e64cfa80af89d92567ab9e8e6fa - Patch, Third Party Advisory | |
| References | (FEDORA) https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/APFTBYGJJVJPFVHRXUW5PII5XOAFI4KH/ - Third Party Advisory | |
| CVSS |
v2 : v3 : |
v2 : 4.0
v3 : 6.5 |
| CPE | cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:* cpe:2.3:a:flatpak:flatpak-builder:*:*:*:*:*:*:*:* cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:* cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:* cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:* cpe:2.3:a:flatpak:flatpak:*:*:*:*:*:*:*:* cpe:2.3:o:fedoraproject:fedora:35:*:*:*:*:*:*:* |
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| First Time |
Debian debian Linux
Fedoraproject Flatpak Debian Flatpak flatpak Fedoraproject fedora Redhat enterprise Linux Flatpak flatpak-builder Redhat |
17 Jan 2022, 04:15
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13 Jan 2022, 21:15
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| New CVE |
Information
Published : 2022-01-13 21:15
Updated : 2023-12-23 10:15
NVD link : CVE-2022-21682
Mitre link : CVE-2022-21682
CVE.ORG link : CVE-2022-21682
JSON object : View
Products Affected
fedoraproject
- fedora
redhat
- enterprise_linux
debian
- debian_linux
flatpak
- flatpak-builder
- flatpak
CWE
CWE-22
Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')