OSV-2023-51
Heap-use-after-free in ZSTD_freeDDict
No scoreFix available
OSS-Fuzz report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=55673
Crash type: Heap-use-after-free READ {*}
Crash state:
ZSTD_freeDDict
blosc2_free_ctx
blosc2_schunk_free
What each source reports
OSV No score
Heap-use-after-free in ZSTD_freeDDict
OSS-Fuzz report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=55673
Crash type: Heap-use-after-free READ {*}
Crash state:
ZSTD_freeDDict
blosc2_free_ctx
blosc2_schunk_free
- Record
OSV-2023-51- Updated
- 2026-11-02
Affected packages
| Package | Affected | Fixed |
|---|---|---|
c-blosc2OSS-Fuzz |
Listed versions, plus commit ranges v2.0.0v2.0.0-rc2v2.0.0.rc1v2.0.1v2.0.2 Show 44 moreShow lessv2.0.3v2.0.4v2.1.0v2.1.1v2.10.0v2.10.1v2.10.2v2.10.3v2.10.4v2.10.5v2.11.0v2.11.1v2.11.2v2.11.3v2.12.0v2.13.0v2.13.1v2.13.2v2.14.0v2.14.1v2.14.2v2.14.3v2.14.4v2.15.0v2.15.1v2.15.2v2.16.0v2.2.0v2.3.0v2.3.1v2.4.0v2.4.1v2.4.2v2.4.3v2.5.0v2.6.0v2.6.1v2.7.0v2.7.1v2.8.0v2.9.0v2.9.1v2.9.2v2.9.3 |
None known |
History
| Recorded | Changed | Sources |
|---|---|---|
| first indexed | OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
OSV-2023-51 is a vulnerability with no CVSS score yet in c-blosc2, published February 5, 2023. No source lists public exploit code. A source reports a fix.