OSV-2021-64
Heap-buffer-overflow in H5MM_memcpy
No scoreFix available
OSS-Fuzz report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=29500
Crash type: Heap-buffer-overflow READ 4
Crash state:
H5MM_memcpy
H5O_attr_decode
H5O_attr_shared_decode
What each source reports
OSV No score
Heap-buffer-overflow in H5MM_memcpy
OSS-Fuzz report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=29500
Crash type: Heap-buffer-overflow READ 4
Crash state:
H5MM_memcpy
H5O_attr_decode
H5O_attr_shared_decode
- Record
OSV-2021-64- Updated
- 2026-11-02
Affected packages
| Package | Affected | Fixed |
|---|---|---|
matioOSS-Fuzz |
Commit ranges | Not evaluated |
Not evaluated means the source gave git commits or a range we can't read, so we can't tell which releases are affected. A fixed version beside it is the source’s own claim.
History
| Recorded | Changed | Sources |
|---|---|---|
| first indexed | OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
OSV-2021-64 is a vulnerability with no CVSS score yet in matio, published January 13, 2021. No source lists public exploit code. A source reports a fix.