A flaw was found in the Linux kernel's ext4 filesystem. A local user can cause an out-of-bound write in in fs/jbd2/transaction.c code, a denial of service, and a system crash by unmounting a crafted ext4 filesystem image.
http://www.securityfocus.com/bid/106503
https://access.redhat.com/errata/RHSA-2018:2948
https://bugzilla.kernel.org/show_bug.cgi?id=200069
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-10882
https://lists.debian.org/debian-lts-announce/2018/07/msg00020.html
https://usn.ubuntu.com/3753-1/
https://usn.ubuntu.com/3753-2/
https://usn.ubuntu.com/3871-1/
https://usn.ubuntu.com/3871-3/
Source: MITRE
Published: 2018-07-27
Updated: 2019-10-09
Type: CWE-787
Base Score: 4.9
Vector: AV:L/AC:L/Au:N/C:N/I:N/A:C
Impact Score: 6.9
Exploitability Score: 3.9
Severity: MEDIUM
Base Score: 5.5
Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Impact Score: 3.6
Exploitability Score: 1.8
Severity: MEDIUM