flatpak: Flatpak before 1.0.8, 1.1.x and 1.2.x before 1.2.4, and 1.3.x before 1.3.1 allows a sandbox bypass
CVE-2019-10063 is fixed in 5 products on 1 platform, first by flatpak 1.0.8-0ubuntu0.18.04.1, released March 26, 2019. It is not reported as exploited. Patch Radar priority: High.
Flatpak before 1.0.8, 1.1.x and 1.2.x before 1.2.4, and 1.3.x before 1.3.1 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.
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| flatpak · RHEL 8 | 0:1.0.6-3.el8_0 | RHSA-2019:1143 | May 13, 2019 |
| flatpak · Ubuntu 18.04.6 LTS (bionic) | 1.0.8-0ubuntu0.18.04.1 | flatpak 1.0.8-0ubuntu0.18.04.1 | Mar 26, 2019 |
| flatpak · ol 8 | 0:1.0.6-3.el8_0 | ELSA-2019-1143 | Jul 30, 2019 |
| flatpak-libs · RHEL 8 | 0:1.0.6-3.el8_0 | RHSA-2019:1143 | May 13, 2019 |
| flatpak-libs · ol 8 | 0:1.0.6-3.el8_0 | ELSA-2019-1143 | Jul 30, 2019 |
| flatpak-tests · Ubuntu 18.04.6 LTS (bionic) | 1.0.8-0ubuntu0.18.04.1 | flatpak-tests 1.0.8-0ubuntu0.18.04.1 | Mar 26, 2019 |
| gir1.2-flatpak-1.0 · Ubuntu 18.04.6 LTS (bionic) | 1.0.8-0ubuntu0.18.04.1 | gir1.2-flatpak-1.0 1.0.8-0ubuntu0.18.04.1 | Mar 26, 2019 |
| libflatpak0 · Ubuntu 18.04.6 LTS (bionic) | 1.0.8-0ubuntu0.18.04.1 | libflatpak0 1.0.8-0ubuntu0.18.04.1 | Mar 26, 2019 |
Patch Radar data is free to use with attribution. Terms and how to credit it.
Product names, logos and trademarks shown on Patch Radar belong to their respective owners. They are used only to identify the software each security fix applies to and to help readers find their platform. Their use does not imply any affiliation with, or endorsement by, those owners, and Patchblox is not affiliated with any of them.