CVE-2023-52389: Integer Overflow or Wraparound

January 27, 2024 (updated February 8, 2024)

UTF32Encoding.cpp in POCO has a Poco::UTF32Encoding integer overflow and resultant stack buffer overflow because Poco::UTF32Encoding::convert() and Poco::UTF32::queryConvert() may return a negative integer if a UTF-32 byte sequence evaluates to a value of 0x80000000 or higher. This is fixed in 1.11.8p2, 1.12.5p2, and 1.13.0.

References

github.com/pocoproject/poco/compare/poco-1.12.5p2-release...poco-1.13.0-release
github.com/pocoproject/poco/issues/4320
nvd.nist.gov/vuln/detail/CVE-2023-52389
pocoproject.org/blog/?p=1226

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