OSV-2022-4

Memcpy-param-overlap in ZSTD_createDDict

No scoreFix available

OSS-Fuzz report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=43287

Crash type: Memcpy-param-overlap
Crash state:
ZSTD_createDDict
blosc_run_decompression_with_context
blosc2_decompress_ctx

What each source reports

OSV No score

Memcpy-param-overlap in ZSTD_createDDict

OSS-Fuzz report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=43287

Crash type: Memcpy-param-overlap
Crash state:
ZSTD_createDDict
blosc_run_decompression_with_context
blosc2_decompress_ctx

Record: OSV-2022-4
Updated: 2026-11-02

Affected packages

Affected packages
Package	Affected	Fixed
`c-blosc2` OSS-Fuzz	Listed versions, plus commit ranges v2.0.0v2.0.0-rc2v2.0.0.rc1v2.0.1v2.0.2 Show 4 moreShow less v2.0.3v2.0.4v2.1.0v2.1.1	None known

History

History
Recorded	Changed	Sources
Nov 2, 2026	first indexed	OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

OSV-2022-4 is a vulnerability with no CVSS score yet in c-blosc2, published January 5, 2022. No source lists public exploit code. A source reports a fix.

References

bugs.chromium.org/p/oss-fuzz/issues/detail?id=43287