Amazon Linux 2 Security Advisory: ALAS-2019-1219
Advisory Release Date: 2019-05-29 19:11 Pacific
Advisory Updated Date: 2019-05-30 20:43 Pacific
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.
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