CVE-2019-19816

high

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.

References

https://github.com/bobfuzzer/CVE/tree/master/CVE-2019-19816

https://security.netapp.com/advisory/ntap-20200103-0001/

https://usn.ubuntu.com/4414-1/

https://lists.debian.org/debian-lts-announce/2020/09/msg00025.html

https://lists.debian.org/debian-lts-announce/2020/12/msg00015.html

https://lists.debian.org/debian-lts-announce/2021/03/msg00010.html

Details

Source: MITRE

Published: 2019-12-17

Updated: 2023-01-19

Type: CWE-787

Risk Information

CVSS v2

Base Score: 9.3

Vector: AV:N/AC:M/Au:N/C:C/I:C/A:C

Impact Score: 10

Exploitability Score: 8.6

Severity: HIGH

CVSS v3

Base Score: 7.8

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

Impact Score: 5.9

Exploitability Score: 1.8

Severity: HIGH