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CVE-2021-21381

Опубликовано: 11 мар. 2021
Источник: ubuntu
Приоритет: medium
CVSS2: 5.8
CVSS3: 7.1

Описание

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 s...

РелизСтатусПримечание
bionic

released

1.0.9-0ubuntu0.3
devel

not-affected

1.10.2-1
esm-apps/bionic

released

1.0.9-0ubuntu0.3
esm-apps/focal

released

1.6.5-0ubuntu0.3
esm-infra-legacy/trusty

DNE

focal

released

1.6.5-0ubuntu0.3
groovy

released

1.8.2-1ubuntu0.2
hirsute

not-affected

1.10.2-1
precise/esm

DNE

trusty

ignored

end of standard support

Показывать по

5.8 Medium

CVSS2

7.1 High

CVSS3

Связанные уязвимости

CVSS3: 8.1
redhat
почти 5 лет назад

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 s...

CVSS3: 7.1
nvd
почти 5 лет назад

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 sour

CVSS3: 7.1
debian
почти 5 лет назад

Flatpak is a system for building, distributing, and running sandboxed ...

oracle-oval
почти 5 лет назад

ELSA-2021-1068: flatpak security update (IMPORTANT)

oracle-oval
почти 5 лет назад

ELSA-2021-1002: flatpak security update (IMPORTANT)

5.8 Medium

CVSS2

7.1 High

CVSS3