CVE-2019-19816 Information

Description

In the Linux kernel 5.0.21 mounting a crafted btrfs filesystem image and performing some operations can cause slab-out-of-bounds write access in __btrfs_map_block in fs/btrfs/volumes.c because a value of 1 for the number of data stripes is mishandled.

CVSS Vector

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Reference

https://github.com/bobfuzzer/CVE/tree/master/CVE-2019-19816 https://lists.debian.org/debian-lts-announce/2020/09/msg00025.html https://security.netapp.com/advisory/ntap-20200103-0001/ https://usn.ubuntu.com/4414-1/

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

REQUIRED

Confidentiality Impact

UNCHANGED

Integrity Impact

HIGH

Availability Impact

HIGH

Base Score

HIGH

Base Severity

7.8