Summary
Package updates are available for Amazon Linux 2 that fix the following vulnerabilities: CVE-2021-21381: A sandbox escape flaw was found in the way flatpak handled special tokens in ".desktop" files. This flaw allows an attacker to gain access to files that are not ordinarily allowed by the app's permissions. The highest threat from this vulnerability is to confidentiality and integrity. 1936985: CVE-2021-21381 flatpak: "file forwarding" feature can be used to gain unprivileged access to files
Fixed packages 5
| Release | Package | Fixed in |
|---|---|---|
| Amazon Linux · 2 | flatpak | 0:1.0.9-10.amzn2.0.1 |
| Amazon Linux · 2 | flatpak-builder | 0:1.0.0-10.amzn2.0.1 |
| Amazon Linux · 2 | flatpak-debuginfo | 0:1.0.9-10.amzn2.0.1 |
| Amazon Linux · 2 | flatpak-devel | 0:1.0.9-10.amzn2.0.1 |
| Amazon Linux · 2 | flatpak-libs | 0:1.0.9-10.amzn2.0.1 |
Vulnerabilities 1
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High 7.1
Sandbox escape via special tokens in .desktop file
Flatpak is a system for building, distributing, and running sandboxed desktop applications on Linux. In Flatpack since version 0.9.4 and before version 1.10.2 has a vulnerability in the "file forwarding" feature which can be used by an attacker to gain access…
References
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web
https://alas.aws.amazon.com/cve/html/CVE-2021-21381.html