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OSV-2023-334

Heap-buffer-overflow in unicode_decode_utf8

No scoreFix available

OSS-Fuzz report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=58201

Crash type: Heap-buffer-overflow READ 1
Crash state:
unicode_decode_utf8
PyUnicode_DecodeUTF8
_PyPegen_formatted_value

What each source reports

OSV No score

Heap-buffer-overflow in unicode_decode_utf8

OSS-Fuzz report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=58201

Crash type: Heap-buffer-overflow READ 1
Crash state:
unicode_decode_utf8
PyUnicode_DecodeUTF8
_PyPegen_formatted_value
Record
OSV-2023-334
Updated
2026-11-02

Affected packages

Affected packages
PackageAffectedFixed
python3-libraries
OSS-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

History
RecordedChangedSources
first indexedOSV

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

In short

OSV-2023-334 is a vulnerability with no CVSS score yet in python3-libraries, published April 22, 2023. No source lists public exploit code. A source reports a fix.

References

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