Описание
It was discovered that snapctl user-open allowed altering the $XDG_DATA_DIRS environment variable when calling the system xdg-open. OpenURL() in usersession/userd/launcher.go would alter $XDG_DATA_DIRS to append a path to a directory controlled by the calling snap. A malicious snap could exploit this to bypass intended access restrictions to control how the host system xdg-open script opens the URL and, for example, execute a script shipped with the snap without confinement. This issue did not affect Ubuntu Core systems. Fixed in snapd versions 2.45.1ubuntu0.2, 2.45.1+18.04.2 and 2.45.1+20.04.2.
| Релиз | Статус | Примечание |
|---|---|---|
| bionic | released | 2.45.1+18.04.2 |
| devel | released | 2.46~pre1.gitaf15176 |
| eoan | released | 2.45.1+19.10.2 |
| esm-infra-legacy/trusty | DNE | |
| esm-infra/bionic | released | 2.45.1+18.04.2 |
| esm-infra/focal | released | 2.45.1+20.04.2 |
| esm-infra/xenial | released | 2.45.1ubuntu0.2 |
| focal | released | 2.45.1+20.04.2 |
| precise/esm | DNE | |
| trusty | ignored | end of standard support |
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EPSS
1.9 Low
CVSS2
5.9 Medium
CVSS3
Связанные уязвимости
It was discovered that snapctl user-open allowed altering the $XDG_DATA_DIRS environment variable when calling the system xdg-open. OpenURL() in usersession/userd/launcher.go would alter $XDG_DATA_DIRS to append a path to a directory controlled by the calling snap. A malicious snap could exploit this to bypass intended access restrictions to control how the host system xdg-open script opens the URL and, for example, execute a script shipped with the snap without confinement. This issue did not affect Ubuntu Core systems. Fixed in snapd versions 2.45.1ubuntu0.2, 2.45.1+18.04.2 and 2.45.1+20.04.2.
It was discovered that snapctl user-open allowed altering the $XDG_DAT ...
It was discovered that snapctl user-open allowed altering the $XDG_DATA_DIRS environment variable when calling the system xdg-open. OpenURL() in usersession/userd/launcher.go would alter $XDG_DATA_DIRS to append a path to a directory controlled by the calling snap. A malicious snap could exploit this to bypass intended access restrictions to control how the host system xdg-open script opens the URL and, for example, execute a script shipped with the snap without confinement. This issue did not affect Ubuntu Core systems. Fixed in snapd versions 2.45.1ubuntu0.2, 2.45.1+18.04.2 and 2.45.1+20.04.2.
EPSS
1.9 Low
CVSS2
5.9 Medium
CVSS3