CVE-2015-3166: Canonical Ubuntu Linux

Critical severity, CVSS 9.8. EPSS: 4.6% chance of exploitation in the next 30 days.

The snprintf implementation in PostgreSQL before 9.0.20, 9.1.x before 9.1.16, 9.2.x before 9.2.11, 9.3.x before 9.3.7, and 9.4.x before 9.4.2 does not properly handle system-call errors, which allows attackers to obtain sensitive information or have other unspecified impact via unknown vectors, as demonstrated by an out-of-memory error.

Affected products

• Canonical Ubuntu Linux: version 12.04 only; version 14.04 only; version 14.10 only; version 15.04 only
• Debian Debian Linux: version 7.0 only; version 8.0 only; version 9.0 only
• PostgreSQL PostgreSQL: before 9.0.20 (fixed in 9.0.20); from 9.1, before 9.1.16 (fixed in 9.1.16); from 9.2, before 9.2.11 (fixed in 9.2.11); from 9.3, before 9.3.7 (fixed in 9.3.7); from 9.4, before 9.4.2 (fixed in 9.4.2)

Published 2019-11-20. Last modified 2026-06-17.