What’s Vulnerable › Vulnerabilities

CVE-2018-17438

• Severity: medium (CVSS 6.5 v3.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.7% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2018-09-24 · updated 2026-06-17
• Weakness: CWE-369

Description

A SIGFPE signal is raised in the function H5D__select_io() of H5Dselect.c in the HDF HDF5 through 1.10.3 library during an attempted parse of a crafted HDF file, because of incorrect protection against division by zero. It could allow a remote denial of service attack.

Affected products

• HDF5: through 1.10.3

References

• https://github.com/SegfaultMasters/covering360/tree/master/HDF5/vuln4#divided-by-zero---poc_h5d__select_io_h5dselect
• https://github.com/SegfaultMasters/covering360/tree/master/HDF5/vuln4#divided-by-zero---poc_h5d__select_io_h5dselect

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