|Date: (C)2010-03-19 (M)2017-09-22|
|CVSS Score: 3.5||Access Vector: NETWORK|
|Exploitability Subscore: 6.8||Access Complexity: MEDIUM|
|Impact Subscore: 2.9||Authentication: SINGLE_INSTANCE|
| ||Confidentiality: NONE|
| ||Integrity: NONE|
| ||Availability: PARTIAL|
Integer overflow in src/backend/executor/nodeHash.c in PostgreSQL 8.4.1 and earlier, and 8.5 through 8.5alpha2, allows remote authenticated users to cause a denial of service (daemon crash) via a SELECT statement with many LEFT JOIN clauses, related to certain hashtable size calculations.