CVE-2020-10809

Severity: medium (CVSS 5.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.5% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2020-03-22 · updated 2026-06-17
Weakness: CWE-787

Description

An issue was discovered in HDF5 through 1.12.0. A heap-based buffer overflow exists in the function Decompress() located in decompress.c. It can be triggered by sending a crafted file to the gif2h5 binary. It allows an attacker to cause Denial of Service.

Affected products

HDF5: through 1.12.0

References

https://bitbucket.hdfgroup.org/projects/HDFFV/repos/hdf5/browse/release_docs/RELEASE.txt
https://github.com/Loginsoft-Research/hdf5-reports/tree/master/Vuln_1
https://research.loginsoft.com/bugs/heap-overflow-in-decompress-c-hdf5-1-13-0/
https://bitbucket.hdfgroup.org/projects/HDFFV/repos/hdf5/browse/release_docs/RELEASE.txt
https://github.com/Loginsoft-Research/hdf5-reports/tree/master/Vuln_1
https://research.loginsoft.com/bugs/heap-overflow-in-decompress-c-hdf5-1-13-0/

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