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Fencer Vulns
medium 6.5

CVE-2018-17436 json

ReadCode() in decompress.c in the HDF HDF5 through 1.10.3 library allows attackers to cause a denial of service (invalid write access) via…

published 2018-09-24 8 y ago modified 2026-06-17 4 mo ago also EUVD-2018-9189

cvss
6.5
version 3.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
1.3%
EPSS 1.3% chance of exploitation in 30 days, percentile 70%
public exploits
0
none known

Summary

ReadCode() in decompress.c in the HDF HDF5 through 1.10.3 library allows attackers to cause a denial of service (invalid write access) via a crafted HDF5 file. This issue was triggered while converting a GIF file to an HDF file.

Patch / fix

  • hdf5_1_10_8-gnu-hpc SLE Module for Package Hub 15 SP3, SLE Module for HPC 15 SP3, openSUSE Leap 15.4 +1 more 1.10.8-150300.4.3.1
  • hdf5_1_10_8-gnu-mpich-hpc SLE Module for Package Hub 15 SP3, SLE Module for HPC 15 SP3, openSUSE Leap 15.4 +1 more 1.10.8-150300.4.3.2
  • hdf5_1_10_8-gnu-mvapich2-hpc SLE Module for Package Hub 15 SP3, SLE Module for HPC 15 SP3, openSUSE Leap 15.4 +1 more 1.10.8-150300.4.3.1
  • hdf5_1_10_8-gnu-openmpi3-hpc SLE Module for Package Hub 15 SP3, SLE Module for HPC 15 SP3, openSUSE Leap 15.4 +1 more 1.10.8-150300.4.3.2
  • hdf5_1_10_8-gnu-openmpi4-hpc SLE Module for Package Hub 15 SP3, SLE Module for HPC 15 SP3, openSUSE Leap 15.4 +1 more 1.10.8-150300.4.3.2
  • suse-hpc SLE Module for HPC 12 0.5.20220206.0c6b168-5.2
  • hdf5_1_10_8-gnu-hpc SLE Module for HPC 12 1.10.8-3.12.2
  • hdf5_1_10_8-gnu-mvapich2-hpc SLE Module for HPC 12 1.10.8-3.12.2

suse advisories SUSE-SU-2022:1912-1SUSE-SU-2022:1933-1SUSE-SU-2022:1911-1SUSE-SU-2022:1910-1SUSE-SU-2022:1903-1

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2018-17436 updated cvss 5.4

hdf5: invalid write access in ReadCode() in decompress.c

  • Red Hat OpenStack Platform 8 (Liberty) hdf5 Red Hat OpenStack Platform 9 (Mitaka) hdf5 Red Hat OpenStack Platform 10 (Newton) hdf5
    affected: no fix available “Fix deferred”
  • Red Hat OpenStack Platform 12 (Pike) hdf5
    affected: no fix available
  • Red Hat OpenStack Platform 13 (Queens) hdf5 Red Hat OpenStack Platform 14 (Rocky) hdf5
    affected: no fix available “Fix deferred”

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

1.31% chance of exploitation in the next 30 days, higher than 70% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • github.com https://github.com/SegfaultMasters/covering360/tree/master/HDF5/vuln8#invalid-write-memory-access-in-decompressc referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 3.0 6.5 CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
NVD 2.0 4.3 AV:N/AC:M/Au:N/C:N/I:N/A:P

Classification

Weakness

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.