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.
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Postgresql | Postgresql | 7.4 (including) | 7.4.28 (excluding) |
| Postgresql | Postgresql | 8.0 (including) | 8.0.24 (excluding) |
| Postgresql | Postgresql | 8.1 (including) | 8.1.20 (excluding) |
| Postgresql | Postgresql | 8.2 (including) | 8.2.16 (excluding) |
| Postgresql | Postgresql | 8.3 (including) | 8.3.10 (excluding) |
| Postgresql | Postgresql | 8.4 (including) | 8.4.3 (excluding) |