An update for flatpak is now available for openEuler-20.03-LTS-SP1 Security Advisory openeuler-security@openeuler.org openEuler security committee openEuler-SA-2021-1149 Final 1.0 1.0 2021-05-06 Initial 2021-05-06 2021-05-06 openEuler SA Tool V1.0 2021-05-06 flatpak security update An update for flatpak is now available for openEuler-20.03-LTS-SP1. flatpak is a system for building, distributing and running sandboxed desktop applications on Linux. See https://wiki.gnome.org/Projects/SandboxedApps for more information. Security Fix(es): Flatpak before 1.0.7, and 1.1.x and 1.2.x before 1.2.3, exposes /proc in the apply_extra script sandbox, which allows attackers to modify a host-side executable file.(CVE-2019-8308) Flatpak is a system for building, distributing, and running sandboxed desktop applications on Linux. In Flatpack since version 0.9.4 and before version 1.10.2 has a vulnerability in the "file forwarding" feature which can be used by an attacker to gain access to files that would not ordinarily be allowed by the app's permissions. By putting the special tokens `@@` and/or `@@u` in the Exec field of a Flatpak app's .desktop file, a malicious app publisher can trick flatpak into behaving as though the user had chosen to open a target file with their Flatpak app, which automatically makes that file available to the Flatpak app. This is fixed in version 1.10.2. A minimal solution is the first commit "`Disallow @@ and @@U usage in desktop files`". The follow-up commits "`dir: Reserve the whole @@ prefix`" and "`dir: Refuse to export .desktop files with suspicious uses of @@ tokens`" are recommended, but not strictly required. As a workaround, avoid installing Flatpak apps from untrusted sources, or check the contents of the exported `.desktop` files in `exports/share/applications/*.desktop` (typically `~/.local/share/flatpak/exports/share/applications/*.desktop` and `/var/lib/flatpak/exports/share/applications/*.desktop`) to make sure that literal filenames do not follow `@@` or `@@u`.(CVE-2021-21381) An update for flatpak is now available for openEuler-20.03-LTS-SP1. 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://openeuler.org/en/security/safety-bulletin/detail.html?id=openEuler-SA-2021-1149 https://openeuler.org/en/security/cve/detail.html?id=CVE-2019-8308 https://openeuler.org/en/security/cve/detail.html?id=CVE-2021-21381 https://nvd.nist.gov/vuln/detail/CVE-2019-8308 https://nvd.nist.gov/vuln/detail/CVE-2021-21381 openEuler-20.03-LTS-SP1 flatpak-debuginfo-1.0.3-5.oe1.aarch64.rpm flatpak-debugsource-1.0.3-5.oe1.aarch64.rpm flatpak-devel-1.0.3-5.oe1.aarch64.rpm flatpak-1.0.3-5.oe1.aarch64.rpm flatpak-help-1.0.3-5.oe1.noarch.rpm flatpak-1.0.3-5.oe1.src.rpm flatpak-devel-1.0.3-5.oe1.x86_64.rpm flatpak-debuginfo-1.0.3-5.oe1.x86_64.rpm flatpak-debugsource-1.0.3-5.oe1.x86_64.rpm flatpak-1.0.3-5.oe1.x86_64.rpm Flatpak before 1.0.7, and 1.1.x and 1.2.x before 1.2.3, exposes /proc in the apply_extra script sandbox, which allows attackers to modify a host-side executable file. 2021-05-06 CVE-2019-8308 openEuler-20.03-LTS-SP1 High 8.2 AV:L/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H flatpak security update 2021-05-06 https://openeuler.org/en/security/safety-bulletin/detail.html?id=openEuler-SA-2021-1149 Flatpak is a system for building, distributing, and running sandboxed desktop applications on Linux. In Flatpack since version 0.9.4 and before version 1.10.2 has a vulnerability in the "file forwarding" feature which can be used by an attacker to gain access to files that would not ordinarily be allowed by the app's permissions. By putting the special tokens `@@` and/or `@@u` in the Exec field of a Flatpak app's .desktop file, a malicious app publisher can trick flatpak into behaving as though the user had chosen to open a target file with their Flatpak app, which automatically makes that file available to the Flatpak app. This is fixed in version 1.10.2. A minimal solution is the first commit "`Disallow @@ and @@U usage in desktop files`". The follow-up commits "`dir: Reserve the whole @@ prefix`" and "`dir: Refuse to export .desktop files with suspicious uses of @@ tokens`" are recommended, but not strictly required. As a workaround, avoid installing Flatpak apps from untrusted sources, or check the contents of the exported `.desktop` files in `exports/share/applications/*.desktop` (typically `~/.local/share/flatpak/exports/share/applications/*.desktop` and `/var/lib/flatpak/exports/share/applications/*.desktop`) to make sure that literal filenames do not follow `@@` or `@@u`. 2021-05-06 CVE-2021-21381 openEuler-20.03-LTS-SP1 High 8.2 AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N flatpak security update 2021-05-06 https://openeuler.org/en/security/safety-bulletin/detail.html?id=openEuler-SA-2021-1149