CVE-2019-15791
Published: Apr 23, 2020
Modified: Sep 17, 2024
CVSS v3.1
7.1
Description
In shiftfs, a non-upstream patch to the Linux kernel included in the Ubuntu 5.0 and 5.3 kernel series, shiftfs_btrfs_ioctl_fd_replace() installs an fd referencing a file from the lower filesystem without taking an additional reference to that file. After the btrfs ioctl completes this fd is closed, which then puts a reference to that file, leading to a refcount underflow.
| 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:U/C:N/I:H/A:H
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
References
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