An issue was discovered in fs/f2fs/super.c in the Linux kernel through 4.14. A denial of service (out-of-bounds memory access and BUG) can occur upon encountering an abnormal bitmap size when mounting a crafted f2fs image.
https://bugzilla.kernel.org/show_bug.cgi?id=200167
https://usn.ubuntu.com/3821-2/
https://usn.ubuntu.com/3821-1/
https://lists.debian.org/debian-lts-announce/2019/03/msg00017.html
https://usn.ubuntu.com/4094-1/
https://usn.ubuntu.com/4118-1/
https://seclists.org/bugtraq/2019/Jan/52
http://lists.opensuse.org/opensuse-security-announce/2018-10/msg00033.html
Source: MITRE
Published: 2018-07-03
Updated: 2022-10-07
Type: CWE-125
Base Score: 4.3
Vector: AV:N/AC:M/Au:N/C:N/I:N/A:P
Impact Score: 2.9
Exploitability Score: 8.6
Severity: MEDIUM
Base Score: 5.5
Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Impact Score: 3.6
Exploitability Score: 1.8
Severity: MEDIUM