Hdf5: Heap-buffer-overflow in H5SM_delete
A heap-buffer-overflow vulnerability exists in the H5SM_delete function of the hdf5 library. This issue was reported by OSS-Fuzz and involves a read overflow of 4 bytes in heap memory during message deletion operations. The affected versions include 1.14.1, 2.0.0, 2.1.0-pre1test, 2.1.0, 2.1.1, 2.2.0-rc1, and 2.2.0. No public exploits or CVSS score are currently available.
AI Analysis
Technical Summary
The hdf5 library contains a heap-buffer-overflow vulnerability in the H5SM_delete function, as identified by OSS-Fuzz. The crash involves a read overflow of 4 bytes in heap memory during the execution of H5SM_delete, which is part of the message deletion process within the library. This vulnerability affects multiple specific versions of hdf5, including 1.14.1 and several 2.x releases up to 2.2.0. No patch or vendor advisory is provided in the input data, and no known exploits have been reported in the wild.
Potential Impact
The heap-buffer-overflow may lead to memory corruption, potentially causing crashes or undefined behavior in applications using the affected hdf5 versions. No direct evidence of exploitation or further impact such as code execution is provided.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is available, users should consider avoiding the affected versions or applying any vendor-provided mitigations once published.
Hdf5: Heap-buffer-overflow in H5SM_delete
Description
A heap-buffer-overflow vulnerability exists in the H5SM_delete function of the hdf5 library. This issue was reported by OSS-Fuzz and involves a read overflow of 4 bytes in heap memory during message deletion operations. The affected versions include 1.14.1, 2.0.0, 2.1.0-pre1test, 2.1.0, 2.1.1, 2.2.0-rc1, and 2.2.0. No public exploits or CVSS score are currently available.
Affected software
pkg:generic/hdf5Run on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The hdf5 library contains a heap-buffer-overflow vulnerability in the H5SM_delete function, as identified by OSS-Fuzz. The crash involves a read overflow of 4 bytes in heap memory during the execution of H5SM_delete, which is part of the message deletion process within the library. This vulnerability affects multiple specific versions of hdf5, including 1.14.1 and several 2.x releases up to 2.2.0. No patch or vendor advisory is provided in the input data, and no known exploits have been reported in the wild.
Potential Impact
The heap-buffer-overflow may lead to memory corruption, potentially causing crashes or undefined behavior in applications using the affected hdf5 versions. No direct evidence of exploitation or further impact such as code execution is provided.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is available, users should consider avoiding the affected versions or applying any vendor-provided mitigations once published.
Technical Details
- Gcve Source
- db.gcve.eu
- Osv Id
- OSV-2023-76
- Osv Schema Version
- 1.4.0
- Ecosystems
- ["OSS-Fuzz"]
Threat ID: 6a6ae55a9c2644c7f89ad3ca
Added to database: 07/30/2026, 05:47:06 UTC
Last enriched: 07/30/2026, 07:28:36 UTC
Last updated: 09/07/2026, 17:16:31 UTC
Views: 28
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