CVE-2010-0442: PostgreSQL

Medium severity, CVSS 6.5. EPSS: 13.3% chance of exploitation in the next 30 days.

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."

Affected products

• PostgreSQL PostgreSQL: from 7.4, before 7.4.28 (fixed in 7.4.28); from 8.0, before 8.0.24 (fixed in 8.0.24); from 8.1, before 8.1.20 (fixed in 8.1.20); from 8.2, before 8.2.16 (fixed in 8.2.16); from 8.3, before 8.3.10 (fixed in 8.3.10); from 8.4, before 8.4.3 (fixed in 8.4.3)

Published 2010-02-02. Last modified 2026-06-16.