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NULL Pointer Dereference Affecting postgresql-9.5 package, versions <9.5.4-0ubuntu0.16.04

Severity

 Recommended
medium

Based on Ubuntu security rating.

Threat Intelligence

EPSS
3.4% (87th percentile)

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  • Snyk IDSNYK-UBUNTU1604-POSTGRESQL95-274697
  • published9 Dec 2016
  • disclosed9 Dec 2016
Report a new vulnerability Found a mistake?

Introduced: 9 Dec 2016

CVE-2016-5423  (opens in a new tab)
CWE-476  (opens in a new tab)

How to fix?

Upgrade Ubuntu:16.04 postgresql-9.5 to version 9.5.4-0ubuntu0.16.04 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream postgresql-9.5 package and not the postgresql-9.5 package as distributed by Ubuntu. See How to fix? for Ubuntu:16.04 relevant fixed versions and status.

PostgreSQL before 9.1.23, 9.2.x before 9.2.18, 9.3.x before 9.3.14, 9.4.x before 9.4.9, and 9.5.x before 9.5.4 allow remote authenticated users to cause a denial of service (NULL pointer dereference and server crash), obtain sensitive memory information, or possibly execute arbitrary code via (1) a CASE expression within the test value subexpression of another CASE or (2) inlining of an SQL function that implements the equality operator used for a CASE expression involving values of different types.

References