hdf5: heap-based buffer overflow in the function H5FL_blk_malloc in H5FL.c
Published Jul 10, 2018
9.8
CRITICALCVSS 3.0
EPSS 1.85%
Description
An issue was discovered in the HDF HDF5 1.8.20 library. There is a heap-based buffer overflow in the function H5FL_blk_malloc in H5FL.c.
Affected products
No data.
No data.
Red Hat Enterprise Linux 8
hdf5
Will not fix
Red Hat Enterprise Linux OpenStack Platform 7 (Kilo)
hdf5
Will not fix
Red Hat OpenStack Platform 10 (Newton)
hdf5
Fix deferred
Red Hat OpenStack Platform 12 (Pike)
hdf5
Affected
Red Hat OpenStack Platform 13 (Queens)
hdf5
Fix deferred
Red Hat OpenStack Platform 14 (Rocky)
hdf5
Fix deferred
Red Hat OpenStack Platform 8 (Liberty)
hdf5
Will not fix
Red Hat OpenStack Platform 9 (Mitaka)
hdf5
Will not fix
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 8 | hdf5 | Will not fix | n/a |
| Red Hat Enterprise Linux OpenStack Platform 7 (Kilo) | hdf5 | Will not fix | n/a |
| Red Hat OpenStack Platform 10 (Newton) | hdf5 | Fix deferred | n/a |
| Red Hat OpenStack Platform 12 (Pike) | hdf5 | Affected | n/a |
| Red Hat OpenStack Platform 13 (Queens) | hdf5 | Fix deferred | n/a |
| Red Hat OpenStack Platform 14 (Rocky) | hdf5 | Fix deferred | n/a |
| Red Hat OpenStack Platform 8 (Liberty) | hdf5 | Will not fix | n/a |
| Red Hat OpenStack Platform 9 (Mitaka) | hdf5 | Will not fix | 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:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
1 other source (Red Hat) ▾
CVSS:3.0/AV:L/AC:H/PR:N/UI:R/S:U/C:N/I:H/A:L
AV:N/AC:L/Au:N/C:P/I:P/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 (17 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 1.85% (0.01853) | 78.38th | v5 (v2026.06.15) |
| Jun 15, 2026 | 1.85% (0.01853) | 76.31th | v5 (v2026.06.15) |
| Mar 30, 2025 | 0.51% (0.00512) | 63.74th | v4 (v2025.03.14) |
| Mar 29, 2025 | 1.86% (0.01860) | 72.01th | v4 (v2025.03.14) |
| Jul 20, 2024 | 0.23% (0.00234) | 61.94th | v3 (v2023.03.01) |
| Apr 25, 2024 | 0.23% (0.00234) | 61.08th | v3 (v2023.03.01) |
| Mar 15, 2024 | 0.21% (0.00208) | 58.06th | v3 (v2023.03.01) |
| Feb 8, 2024 | 0.19% (0.00190) | 55.34th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.46% (0.00465) | 71.61th | v3 (v2023.03.01) |
| Mar 6, 2023 | 0.89% (0.00885) | 27.89th | v2 (v2022.01.01) |
| Sep 10, 2022 | 0.89% (0.00885) | 26.24th | v2 (v2022.01.01) |
| Apr 1, 2022 | 0.89% (0.00885) | 24.24th | v2 (v2022.01.01) |
| Feb 4, 2022 | 0.89% (0.00885) | 10.50th | v2 (v2022.01.01) |
| Feb 3, 2022 | 0.42% (0.00416) | 10.04th | v1 |
| Jan 6, 2022 | 0.42% (0.00416) | 9.79th | v1 |
| Sep 1, 2021 | 0.42% (0.00416) | 25.53th | v1 |
| Apr 14, 2021 | 0.42% (0.00416) | 0.00th | v1 |
References (5)
- https://access.redhat.com/security/cve/CVE-2018-13871 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1601473 Issue Tracking
- https://github.com/TeamSeri0us/pocs/tree/master/hdf5 x_refsource_MISCExploitThird Party Advisory
- https://nvd.nist.gov/vuln/detail/CVE-2018-13871
- https://www.cve.org/CVERecord?id=CVE-2018-13871
| Link | Providers | Tags |
|---|---|---|
| https://access.redhat.com/security/cve/CVE-2018-13871 | Vendor Advisory | |
| https://bugzilla.redhat.com/show_bug.cgi?id=1601473 | Issue Tracking | |
| https://github.com/TeamSeri0us/pocs/tree/master/hdf5 | x_refsource_MISCExploitThird Party Advisory | |
| https://nvd.nist.gov/vuln/detail/CVE-2018-13871 | ||
| https://www.cve.org/CVERecord?id=CVE-2018-13871 |
Change history (0)
No recorded changes yet.