CVE-2019-15793
Published: Apr 23, 2020
Modified: Sep 16, 2024
CVSS v3.1
6.5
Description
In shiftfs, a non-upstream patch to the Linux kernel included in the Ubuntu 5.0 and 5.3 kernel series, several locations which shift ids translate user/group ids before performing operations in the lower filesystem were translating them into init_user_ns, whereas they should have been translated into the s_user_ns for the lower filesystem. This resulted in using ids other than the intended ones in the lower fs, which likely did not map into the shifts s_user_ns. A local attacker could use this to possibly bypass discretionary access control permissions.
| Vendor | Product | Versions |
|---|---|---|
Ubuntu | Shiftfs in the Linux kernel | affected 5.3.0-11.12 - < 5.3 kernel*affected 5.0 kernel - < 5.0.0-35.38 |
Weaknesses (CWE)
CVSS v3.1 Details
CVSS v3.1 Vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
References
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