SQL injection in PostgreSQL - CVE-2018-16850

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Main Vulnerability Database Vulnerabilities #VU15796

SQL injection in PostgreSQL - CVE-2018-16850

Published: November 9, 2018 / Updated: November 12, 2018


Vulnerability identifier: #VU15796
CSH Severity: Low
CVSS v4: 5.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N]
CVE-ID: CVE-2018-16850
CWE-ID: CWE-89
Exploitation vector: Remote access
Exploit availability: No public exploit available

Vulnerability details

The vulnerability allows a remote authenticated attacker to execute arbitrary SQL commands in web application database.

The vulnerability exists due to insufficient sanitization of statements involving CREATE TRIGGER REFERENCING. A remote attacker can send a specially crafted HTTP request to vulnerable script and execute arbitrary SQL commands in web application database when running the pg_upgrade utility on the database or during a pg_dump utility dump/restore cycle.

Successful exploitation of the vulnerability may allow an attacker to gain administrative access to vulnerable web application.


Affected software

PostgreSQL
Gentoo Linux
Red Hat Enterprise Linux for x86_64
Opensuse
Ubuntu
BIG-IQ
postgresql (Alpine package)
postgresql-10 (Ubuntu package)

How to mitigate CVE-2018-16850

The vulnerability has been fixed in the versions 10.6, 11.1.

PostgreSQL - addressed in versions 10.6, 11.1
postgresql (Alpine package) - update to 11.1-r0
postgresql-10 (Ubuntu package) - addressed in versions 10.6-0ubuntu0.18.04.1, 10.6-0ubuntu0.18.10.1

External References

Related Security Bulletins