Important: flatpak

Issue Overview:

Flatpak allows a sandbox bypass. Flatpak versions since 0.8.1 address CVE-2017-5226 by using a seccomp filter to prevent sandboxed apps from using the TIOCSTI ioctl, which could otherwise be used to inject commands into the controlling terminal so that they would be executed outside the sandbox after the sandboxed app exits. This fix was incomplete: on 64-bit platforms, the seccomp filter could be bypassed by an ioctl request number that has TIOCSTI in its 32 least significant bits and an arbitrary nonzero value in its 32 most significant bits, which the Linux kernel would treat as equivalent to TIOCSTI.(CVE-2019-10063)

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-1.0.2-5.amzn2.0.1.aarch64  
    flatpak-builder-1.0.0-5.amzn2.0.1.aarch64  
    flatpak-devel-1.0.2-5.amzn2.0.1.aarch64  
    flatpak-libs-1.0.2-5.amzn2.0.1.aarch64  
    flatpak-debuginfo-1.0.2-5.amzn2.0.1.aarch64  
  
i686:  
    flatpak-1.0.2-5.amzn2.0.1.i686  
    flatpak-builder-1.0.0-5.amzn2.0.1.i686  
    flatpak-devel-1.0.2-5.amzn2.0.1.i686  
    flatpak-libs-1.0.2-5.amzn2.0.1.i686  
    flatpak-debuginfo-1.0.2-5.amzn2.0.1.i686  
  
src:  
    flatpak-1.0.2-5.amzn2.0.1.src  
  
x86_64:  
    flatpak-1.0.2-5.amzn2.0.1.x86_64  
    flatpak-builder-1.0.0-5.amzn2.0.1.x86_64  
    flatpak-devel-1.0.2-5.amzn2.0.1.x86_64  
    flatpak-libs-1.0.2-5.amzn2.0.1.x86_64  
    flatpak-debuginfo-1.0.2-5.amzn2.0.1.x86_64  

Additional References

Red Hat: CVE-2019-10063

Mitre: CVE-2019-10063