CVE-2019-19377

high

Description

In the Linux kernel 5.0.21, mounting a crafted btrfs filesystem image, performing some operations, and unmounting can lead to a use-after-free in btrfs_queue_work in fs/btrfs/async-thread.c.

References

https://github.com/bobfuzzer/CVE/tree/master/CVE-2019-19377

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

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

https://usn.ubuntu.com/4367-1/

https://usn.ubuntu.com/4369-1/

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

Details

Source: MITRE

Published: 2019-11-29

Updated: 2020-12-11

Type: CWE-416

Risk Information

CVSS v2

Base Score: 6.8

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

Impact Score: 6.4

Exploitability Score: 8.6

Severity: MEDIUM

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