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THREATINT
PUBLISHED

CVE-2025-6816

HDF5 H5Ofsinfo.c H5O__fsinfo_encode heap-based overflow



Description

EN DE

A vulnerability classified as problematic was found in HDF5 1.14.6. This vulnerability affects the function H5O__fsinfo_encode of the file /src/H5Ofsinfo.c. The manipulation leads to heap-based buffer overflow. It is possible to launch the attack on the local host. The exploit has been disclosed to the public and may be used.

In HDF5 1.14.6 wurde eine Schwachstelle entdeckt. Sie wurde als problematisch eingestuft. Hierbei betrifft es die Funktion H5O__fsinfo_encode der Datei /src/H5Ofsinfo.c. Mittels Manipulieren mit unbekannten Daten kann eine heap-based buffer overflow-Schwachstelle ausgenutzt werden. Die Umsetzung des Angriffs hat dabei lokal zu erfolgen. Der Exploit steht zur öffentlichen Verfügung.

Reserved 2025-06-27 | Published 2025-06-28 | Updated 2025-06-28 | Assigner VulDB


MEDIUM: 4.8CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P
LOW: 3.3CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L/E:P/RL:X/RC:R
LOW: 3.3CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L/E:P/RL:X/RC:R
1.7AV:L/AC:L/Au:S/C:N/I:N/A:P/E:POC/RL:ND/RC:UR

Problem types

Heap-based Buffer Overflow

Memory Corruption

Timeline

2025-06-27:Advisory disclosed
2025-06-27:VulDB entry created
2025-06-27:VulDB entry last update

Credits

JJLeo (VulDB User) reporter

References

vuldb.com/?id.314254 (VDB-314254 | HDF5 H5Ofsinfo.c H5O__fsinfo_encode heap-based overflow) vdb-entry technical-description

vuldb.com/?ctiid.314254 (VDB-314254 | CTI Indicators (IOB, IOC, IOA)) signature permissions-required

vuldb.com/?submit.602291 (Submit #602291 | HDFGroup HDF5 hdf5 1.14.6 (commit 17c16b6) Heap-based Buffer Overflow) third-party-advisory

github.com/HDFGroup/hdf5/issues/5571 issue-tracking

github.com/user-attachments/files/20623354/hdf5_crash_3.txt exploit

cve.org (CVE-2025-6816)

nvd.nist.gov (CVE-2025-6816)

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