An update for flatpak is now available for openEuler-20.03-LTS-SP1 and openEuler-20.03-LTS-SP2 Security Advisory openeuler-security@openeuler.org openEuler security committee openEuler-SA-2021-1404 Final 1.0 1.0 2021-10-30 Initial 2021-10-30 2021-10-30 openEuler SA Tool V1.0 2021-10-30 flatpak security update An update for flatpak is now available for openEuler-20.03-LTS-SP1 and openEuler-20.03-LTS-SP2. flatpak is a system for building, distributing and running sandboxed desktop applications on Linux. Security Fix(es): In versions prior to 1.10.4 and 1.12.0, Flatpak apps with direct access to AF_UNIX sockets such as those used by Wayland, Pipewire or pipewire-pulse can trick portals and other host-OS services into treating the Flatpak app as though it was an ordinary, non-sandboxed host-OS process. They can do this by manipulating the VFS using recent mount-related syscalls that are not blocked by Flatpak's denylist seccomp filter, in order to substitute a crafted `/.flatpak-info` or make that file disappear entirely. Flatpak apps that act as clients for AF_UNIX sockets such as those used by Wayland, Pipewire or pipewire-pulse can escalate the privileges that the corresponding services will believe the Flatpak app has. Note that protocols that operate entirely over the D-Bus session bus (user bus), system bus or accessibility bus are not affected by this. This is due to the use of a proxy process `xdg-dbus-proxy`, whose VFS cannot be manipulated by the Flatpak app, when interacting with these buses. Patches exist for versions 1.10.4 and 1.12.0, and as of time of publication, a patch for version 1.8.2 is being planned. There are no workarounds aside from upgrading to a patched version.(CVE-2021-41133) An update for flatpak is now available for openEuler-20.03-LTS-SP1 and openEuler-20.03-LTS-SP2. openEuler Security has rated this update as having a security impact of high. A Common Vunlnerability Scoring System(CVSS)base score,which gives a detailed severity rating, is available for each vulnerability from the CVElink(s) in the References section. High flatpak https://www.openeuler.org/en/security/safety-bulletin/detail.html?id=openEuler-SA-2021-1404 https://www.openeuler.org/en/security/cve/detail.html?id=CVE-2021-41133 https://nvd.nist.gov/vuln/detail/CVE-2021-41133 openEuler-20.03-LTS-SP1 openEuler-20.03-LTS-SP2 flatpak-debuginfo-1.0.3-7.oe1.aarch64.rpm flatpak-1.0.3-7.oe1.aarch64.rpm flatpak-devel-1.0.3-7.oe1.aarch64.rpm flatpak-debugsource-1.0.3-7.oe1.aarch64.rpm flatpak-debuginfo-1.0.3-7.oe1.aarch64.rpm flatpak-1.0.3-7.oe1.aarch64.rpm flatpak-devel-1.0.3-7.oe1.aarch64.rpm flatpak-debugsource-1.0.3-7.oe1.aarch64.rpm flatpak-help-1.0.3-7.oe1.noarch.rpm flatpak-help-1.0.3-7.oe1.noarch.rpm flatpak-1.0.3-7.oe1.src.rpm flatpak-1.0.3-7.oe1.src.rpm flatpak-devel-1.0.3-7.oe1.x86_64.rpm flatpak-1.0.3-7.oe1.x86_64.rpm flatpak-debugsource-1.0.3-7.oe1.x86_64.rpm flatpak-debuginfo-1.0.3-7.oe1.x86_64.rpm flatpak-devel-1.0.3-7.oe1.x86_64.rpm flatpak-1.0.3-7.oe1.x86_64.rpm flatpak-debugsource-1.0.3-7.oe1.x86_64.rpm flatpak-debuginfo-1.0.3-7.oe1.x86_64.rpm In versions prior to 1.10.4 and 1.12.0, Flatpak apps with direct access to AF_UNIX sockets such as those used by Wayland, Pipewire or pipewire-pulse can trick portals and other host-OS services into treating the Flatpak app as though it was an ordinary, non-sandboxed host-OS process. They can do this by manipulating the VFS using recent mount-related syscalls that are not blocked by Flatpak's denylist seccomp filter, in order to substitute a crafted `/.flatpak-info` or make that file disappear entirely. Flatpak apps that act as clients for AF_UNIX sockets such as those used by Wayland, Pipewire or pipewire-pulse can escalate the privileges that the corresponding services will believe the Flatpak app has. Note that protocols that operate entirely over the D-Bus session bus (user bus), system bus or accessibility bus are not affected by this. This is due to the use of a proxy process `xdg-dbus-proxy`, whose VFS cannot be manipulated by the Flatpak app, when interacting with these buses. Patches exist for versions 1.10.4 and 1.12.0, and as of time of publication, a patch for version 1.8.2 is being planned. There are no workarounds aside from upgrading to a patched version. 2021-10-30 CVE-2021-41133 openEuler-20.03-LTS-SP1 openEuler-20.03-LTS-SP2 High 7.8 AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H flatpak security update 2021-10-30 https://www.openeuler.org/en/security/safety-bulletin/detail.html?id=openEuler-SA-2021-1404