CVE-2018-13097

MEDIUM

Linux Kernel < 4.17.3 - Divide By Zero

Title source: rule

Description

An issue was discovered in fs/f2fs/super.c in the Linux kernel through 4.17.3. There is an out-of-bounds read or a divide-by-zero error for an incorrect user_block_count in a corrupted f2fs image, leading to a denial of service (BUG).

References (10)

[Mailing List] http://lists.opensuse.org/opensuse-security-announce/2018-10/msg00033.html

[Exploit, Third Party Advisory] http://packetstormsecurity.com/files/151420/Slackware-Security-Advisory-Slackware-14.2-kernel-Updates.html

[Issue Tracking] https://bugzilla.kernel.org/show_bug.cgi?id=200171

[Mailing List] https://lists.debian.org/debian-lts-announce/2019/03/msg00017.html

[Mailing List] https://seclists.org/bugtraq/2019/Jan/52

[Vendor Advisory] https://usn.ubuntu.com/3932-1/

[Vendor Advisory] https://usn.ubuntu.com/3932-2/

[Vendor Advisory] https://usn.ubuntu.com/4094-1/

[Vendor Advisory] https://usn.ubuntu.com/4118-1/

[Patch] https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=9dc956b2c8523aed39d1e6508438be9fea28c8fc

Scores

CVSS v3 5.5

EPSS 0.0022

EPSS Percentile 44.0%

Attack Vector LOCAL

CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Classification

CWE

CWE-125 CWE-369

Status published

Affected Products (1)

linux/linux_kernel < 4.17.3

Timeline

Published Jul 03, 2018

Tracked Since Feb 18, 2026