Debian Security Bug TrackerDEBIANCVE:CVE-2020-11934CVE-2020-11934
5.9 Medium
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality Impact
NONE
Integrity Impact
HIGH
Availability Impact
NONE
CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:C/C:N/I:H/A:N
1.9 Low
CVSS2
Access Vector
LOCAL
Access Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
PARTIAL
Availability Impact
NONE
AV:L/AC:M/Au:N/C:N/I:P/A:N
0.0004 Low
EPSS
Percentile
11.7%
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.
| OS | Version | Architecture | Package | Version | Filename |
|---|---|---|---|---|---|
| Debian | 12 | all | snapd | < 2.45.2-1 | snapd_2.45.2-1_all.deb |
| Debian | 11 | all | snapd | < 2.45.2-1 | snapd_2.45.2-1_all.deb |
| Debian | 10 | all | snapd | <= 2.37.4-1+deb10u1 | snapd_2.37.4-1+deb10u1_all.deb |
| Debian | 999 | all | snapd | < 2.45.2-1 | snapd_2.45.2-1_all.deb |
| Debian | 13 | all | snapd | < 2.45.2-1 | snapd_2.45.2-1_all.deb |
Related
5.9 Medium
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality Impact
NONE
Integrity Impact
HIGH
Availability Impact
NONE
CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:C/C:N/I:H/A:N
1.9 Low
CVSS2
Access Vector
LOCAL
Access Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
PARTIAL
Availability Impact
NONE
AV:L/AC:M/Au:N/C:N/I:P/A:N
0.0004 Low
EPSS
Percentile
11.7%