{"id":"CVE-2010-0442","aliases":["DSA-2051-1","EUVD-2010-0473","GHSA-gv9m-x3m7-x4g8","RHSA-2010:0427","RHSA-2010:0428","RHSA-2010:0429"],"status":"published","title":"The bitsubstr function in backend/utils/adt/varbit.c in PostgreSQL 8.0.23, 8.1.11, and 8.3.8...","description":"The bitsubstr function in backend/utils/adt/varbit.c in PostgreSQL 8.0.23, 8.1.11, and 8.3.8 allows remote authenticated users to cause a denial of service (daemon crash) or have unspecified other impact via vectors involving a negative integer in the third argument, as demonstrated by a SELECT statement that contains a call to the substring function for a bit string, related to an \"overflow.\"","severity":{"version":"2.0","score":6.5,"vector":"AV:N/AC:L/Au:S/C:P/I:P/A:P","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-09","score":0.13255,"percentile":0.96412,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":true,"fix_available":false},"cwes":["CWE-189"],"published":"2010-02-02T18:00:00Z","modified":"2026-06-26T12:20:32Z","exploits":[{"source":"exploitdb","id":"EDB-33571","title":"PostgreSQL - 'bitsubstr' Buffer 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