netCDF in GDAL 2.4.2 through 3.0.4 has a stack-based buffer overflow in nc4_get_att (called from nc4_get_att_tc and nc_get_att_text) and in uffd_cleanup (called from netCDFDataset::~netCDFDataset and netCDFDataset::~netCDFDataset).Referenceshttps://github.com/google/oss-fuzz-vulns/blob/main/vulns/gdal/OSV-2020-392.yamlhttps://github.com/google/oss-fuzz-vulns/blob/main/vulns/gdal/OSV-2020-420.yamlhttps://bugs.chromium.org/p/oss-fuzz/issues/detail?id=15143https://github.com/OSGeo/gdal/commit/767e3a56144f676ca738ef8f700e0e56035bd05ahttps://github.com/OSGeo/gdal/commit/27b9bf644bcf1208f7d6594bdd104cc8a8bb0646https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=15156
