CVE-2025-6856 | THREATINT

Description

A vulnerability, which was classified as problematic, was found in HDF5 1.14.6. Affected is the function H5FL__reg_gc_list of the file src/H5FL.c. The manipulation leads to use after free. Attacking locally is a requirement. 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. Dabei betrifft es die Funktion H5FL__reg_gc_list der Datei src/H5FL.c. Durch die Manipulation mit unbekannten Daten kann eine use after free-Schwachstelle ausgenutzt werden. Der Angriff hat dabei lokal zu erfolgen. Der Exploit steht zur öffentlichen Verfügung.

Reserved 2025-06-28 | Published 2025-06-29 | Updated 2025-06-29 | 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

Use After Free

Memory Corruption

Timeline

2025-06-28:	Advisory disclosed
2025-06-28:	VulDB entry created
2025-06-28:	VulDB entry last update

Credits

JJLeo (VulDB User) reporter

References

vuldb.com/?id.314328 (VDB-314328 | HDF5 H5FL.c H5FL__reg_gc_list use after free) vdb-entry technical-description

vuldb.com/?ctiid.314328 (VDB-314328 | CTI Indicators (IOB, IOC, IOA)) signature permissions-required

vuldb.com/?submit.602528 (Submit #602528 | HDFGroup HDF5 hdf5 1.14.6 (commit 17c16b6) Use After Free) third-party-advisory

github.com/HDFGroup/hdf5/issues/5574 issue-tracking

github.com/user-attachments/files/20623417/hdf5_crash_6.txt exploit

cve.org (CVE-2025-6856)

nvd.nist.gov (CVE-2025-6856)

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