OSV-2020-691
UNKNOWN WRITE in ZSTD_decodeLiteralsBlock
No scoreFix available
OSS-Fuzz report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=16541
Crash type: UNKNOWN WRITE
Crash state:
ZSTD_decodeLiteralsBlock
ZSTD_decompressBlock
ZSTD_decompressDCtx
What each source reports
OSV No score
UNKNOWN WRITE in ZSTD_decodeLiteralsBlock
OSS-Fuzz report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=16541
Crash type: UNKNOWN WRITE
Crash state:
ZSTD_decodeLiteralsBlock
ZSTD_decompressBlock
ZSTD_decompressDCtx
- Record
OSV-2020-691- Updated
- 2026-11-02
Affected packages
| Package | Affected | Fixed |
|---|---|---|
zstdOSS-Fuzz |
Listed versions, plus commit ranges v1.4.1v1.4.2v1.4.3v1.4.0 |
None known |
History
| Recorded | Changed | Sources |
|---|---|---|
| first indexed | OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
OSV-2020-691 is a vulnerability with no CVSS score yet in zstd, published July 1, 2020. No source lists public exploit code. A source reports a fix.