CVE-2019-19447 Information

Description

In the Linux kernel 5.0.21 mounting a crafted ext4 filesystem image performing some operations and unmounting can lead to a use-after-free in ext4_put_super in fs/ext4/super.c related to dump_orphan_list in fs/ext4/super.c.

CVSS Vector

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

Reference

http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00021.html https://github.com/bobfuzzer/CVE/tree/master/CVE-2019-19447 https://lists.debian.org/debian-lts-announce/2020/03/msg00001.html https://lists.debian.org/debian-lts-announce/2020/06/msg00011.html https://lists.debian.org/debian-lts-announce/2020/06/msg00013.html https://security.netapp.com/advisory/ntap-20200103-0001/

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