Important: flatpak

Issue Overview:

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. (CVE-2021-21381)

Affected Packages:

flatpak

Note:

This advisory is applicable to Amazon Linux 2 (AL2) Core repository. Visit this FAQ section for the difference between AL2 Core and AL2 Extras advisories.

Issue Correction:
Run yum update flatpak to update your system.

New Packages:

aarch64:  
    flatpak-1.0.9-10.amzn2.0.1.aarch64  
    flatpak-builder-1.0.0-10.amzn2.0.1.aarch64  
    flatpak-devel-1.0.9-10.amzn2.0.1.aarch64  
    flatpak-libs-1.0.9-10.amzn2.0.1.aarch64  
    flatpak-debuginfo-1.0.9-10.amzn2.0.1.aarch64  
  
i686:  
    flatpak-1.0.9-10.amzn2.0.1.i686  
    flatpak-builder-1.0.0-10.amzn2.0.1.i686  
    flatpak-devel-1.0.9-10.amzn2.0.1.i686  
    flatpak-libs-1.0.9-10.amzn2.0.1.i686  
    flatpak-debuginfo-1.0.9-10.amzn2.0.1.i686  
  
src:  
    flatpak-1.0.9-10.amzn2.0.1.src  
  
x86_64:  
    flatpak-1.0.9-10.amzn2.0.1.x86_64  
    flatpak-builder-1.0.0-10.amzn2.0.1.x86_64  
    flatpak-devel-1.0.9-10.amzn2.0.1.x86_64  
    flatpak-libs-1.0.9-10.amzn2.0.1.x86_64  
    flatpak-debuginfo-1.0.9-10.amzn2.0.1.x86_64  

Additional References

Red Hat: CVE-2021-21381

Mitre: CVE-2021-21381