CVE-2025-6818 | THREATINT

Description

A vulnerability, which was classified as problematic, was found in HDF5 1.14.6. Affected is the function H5O__chunk_protect of the file /src/H5Ochunk.c. The manipulation leads to heap-based buffer overflow. An attack has to be approached locally. The exploit has been disclosed to the public and may be used.

Es wurde eine Schwachstelle in HDF5 1.14.6 gefunden. Sie wurde als problematisch eingestuft. Hiervon betroffen ist die Funktion H5O__chunk_protect der Datei /src/H5Ochunk.c. Durch Manipulieren mit unbekannten Daten kann eine heap-based buffer overflow-Schwachstelle ausgenutzt werden. Der Angriff 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.314256 (VDB-314256 | HDF5 H5Ochunk.c H5O__chunk_protect heap-based overflow) vdb-entry technical-description

vuldb.com/?ctiid.314256 (VDB-314256 | CTI Indicators (IOB, IOC, IOA)) signature permissions-required

vuldb.com/?submit.602326 (Submit #602326 | HDFGroup HDF5 hdf5 1.14.6 (commit 17c16b6) Heap-based Buffer Overflow) third-party-advisory

github.com/HDFGroup/hdf5/issues/5573 issue-tracking

github.com/user-attachments/files/20623382/hdf5_crash_5.txt exploit

cve.org (CVE-2025-6818)

nvd.nist.gov (CVE-2025-6818)

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