kernel: divide-by-zero in fs/f2fs/super.c
Published Jul 3, 2018
5.5
MEDIUMCVSS 3.0
EPSS 1.79%
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).
Affected products
No data.
- ≤ 4.17.3
No data.
Red Hat Enterprise Linux 5
kernel
Not affected
Red Hat Enterprise Linux 6
kernel
Not affected
Red Hat Enterprise Linux 7
kernel
Not affected
Red Hat Enterprise Linux 7
kernel-alt
Not affected
Red Hat Enterprise Linux 7
kernel-rt
Not affected
Red Hat Enterprise Linux 8
kernel
Not affected
Red Hat Enterprise MRG 2
realtime-kernel
Not affected
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 5 | kernel | Not affected | n/a |
| Red Hat Enterprise Linux 6 | kernel | Not affected | n/a |
| Red Hat Enterprise Linux 7 | kernel | Not affected | n/a |
| Red Hat Enterprise Linux 7 | kernel-alt | Not affected | n/a |
| Red Hat Enterprise Linux 7 | kernel-rt | Not affected | n/a |
| Red Hat Enterprise Linux 8 | kernel | Not affected | n/a |
| Red Hat Enterprise MRG 2 | realtime-kernel | Not affected | n/a |
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
1 other source (Red Hat) ▾
CVSS:3.0/AV:L/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:H
AV:N/AC:M/Au:N/C:N/I:N/A:P
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
Score over time
2021–2026- EPSS v1
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v1
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (23 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 1.79% (0.01791) | 77.57th | v5 (v2026.06.15) |
| Sep 22, 2026 | 1.79% (0.01791) | 77.41th | v5 (v2026.06.15) |
| Sep 21, 2026 | 3.54% (0.03544) | 88.79th | v5 (v2026.06.15) |
| Sep 6, 2026 | 1.79% (0.01791) | 76.91th | v5 (v2026.06.15) |
| Sep 5, 2026 | 3.54% (0.03544) | 88.54th | v5 (v2026.06.15) |
| Aug 30, 2026 | 1.79% (0.01791) | 76.80th | v5 (v2026.06.15) |
| Aug 28, 2026 | 3.54% (0.03544) | 88.47th | v5 (v2026.06.15) |
| Aug 24, 2026 | 1.79% (0.01791) | 76.67th | v5 (v2026.06.15) |
| Aug 23, 2026 | 3.54% (0.03544) | 88.42th | v5 (v2026.06.15) |
| Jun 15, 2026 | 1.79% (0.01791) | 75.44th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.12% (0.00117) | 28.06th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.26% (0.00258) | 66.04th | v3 (v2023.03.01) |
| Feb 8, 2024 | 0.26% (0.00258) | 64.58th | v3 (v2023.03.01) |
| Jun 27, 2023 | 0.26% (0.00258) | 62.30th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.18% (0.00185) | 54.02th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.54% (0.01537) | 74.52th | v2 (v2022.01.01) |
| Feb 23, 2023 | 1.54% (0.01537) | 74.48th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.54% (0.01537) | 72.41th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.54% (0.01537) | 51.33th | v2 (v2022.01.01) |
| Feb 3, 2022 | 2.82% (0.02818) | 63.10th | v1 |
| Jan 6, 2022 | 2.82% (0.02818) | 62.75th | v1 |
| Sep 1, 2021 | 2.82% (0.02818) | 80.51th | v1 |
| Apr 14, 2021 | 2.82% (0.02818) | 0.00th | v1 |
References (14)
- http://lists.opensuse.org/opensuse-security-announce/2018-10/msg00033.html vendor-advisoryx_refsource_SUSE
- http://packetstormsecurity.com/files/151420/Slackware-Security-Advisory-Slackware-14.2-kernel-Updates.html x_refsource_MISC
- https://access.redhat.com/security/cve/CVE-2018-13097 Vendor Advisory
- https://bugzilla.kernel.org/show_bug.cgi?id=200171 x_refsource_MISCIssue Tracking
- https://bugzilla.redhat.com/show_bug.cgi?id=1597786 Issue Tracking
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=9dc956b2c8523aed39d1e6508438be9fea28c8fc x_refsource_MISC
- https://lists.debian.org/debian-lts-announce/2019/03/msg00017.html mailing-listx_refsource_MLIST
- https://nvd.nist.gov/vuln/detail/CVE-2018-13097
- https://seclists.org/bugtraq/2019/Jan/52 mailing-listx_refsource_BUGTRAQ
- https://usn.ubuntu.com/3932-1/ vendor-advisoryx_refsource_UBUNTU
- https://usn.ubuntu.com/3932-2/ vendor-advisoryx_refsource_UBUNTU
- https://usn.ubuntu.com/4094-1/ vendor-advisoryx_refsource_UBUNTU
- https://usn.ubuntu.com/4118-1/ vendor-advisoryx_refsource_UBUNTU
- https://www.cve.org/CVERecord?id=CVE-2018-13097
Change history (0)
No recorded changes yet.