CVE-2019-10209

Publication date 8 August 2019

Last updated 25 August 2025

Ubuntu priority

Cvss 3 Severity Score

Description

Postgresql, versions 11.x before 11.5, is vulnerable to a memory disclosure in cross-type comparison for hashed subplan.

From the Ubuntu Security Team

Andreas Seltenreich discovered that PostgreSQL did not properly handle user-defined hash equality operators. An attacker could use this to expose sensitive information (arbitrary PostgreSQL server memory).

Read the notes from the security team

Status

Show unmaintained releases

Package	Ubuntu Release	Status
postgresql-10	19.04 disco	Not in release
	18.04 LTS bionic	Not affected
	16.04 LTS xenial	Not in release
	14.04 LTS trusty	Not in release
postgresql-11	19.04 disco	Fixed 11.5-0ubuntu0.19.04.1
	18.04 LTS bionic	Not in release
	16.04 LTS xenial	Not in release
	14.04 LTS trusty	Not in release
postgresql-9.1	19.04 disco	Not in release
	18.04 LTS bionic	Not in release
	16.04 LTS xenial	Not in release
	14.04 LTS trusty	Not in release
postgresql-9.3	19.04 disco	Not in release
	18.04 LTS bionic	Not in release
	16.04 LTS xenial	Not in release
	14.04 LTS trusty	Not affected
postgresql-9.5	19.04 disco	Not in release
	18.04 LTS bionic	Not in release
	16.04 LTS xenial	Not affected
	14.04 LTS trusty	Not in release

Notes

sbeattie

affects postgresql 11 only

Severity score breakdown

Parameter	Value
Base score	2.2 · Low
Attack vector	Network
Attack complexity	High
Privileges required	High
User interaction	None
Scope	Unchanged
Confidentiality	Low
Integrity impact	None
Availability impact	None
Vector	CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:L/I:N/A:N

References

Related Ubuntu Security Notices (USN)

USN-4090-1
PostgreSQL vulnerabilities
9 August 2019