CVE-2018-10915 SQL injection in postgresql

High 8.5 Published 9 Aug 2018 Updated 5 Aug 2024

Attackers can bypass security features and execute SQL injection via untrusted connection parameters in the libpq library, leading to privilege escalation or data exposure.

Exploited in the wild: Not known
Login needed: Any signed-in user
Attackable: Over the internet
Victim action needed: Not needed
Fix: Available

What is CVE-2018-10915?

CVE-2018-10915 is a high-severity SQL injection vulnerability in Canonical Ubuntu Linux, published on 9 Aug 2018. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

A vulnerability was found in libpq, the default PostgreSQL client library where libpq failed to properly reset its internal state between connections. If an affected version of libpq was used with "host" or "hostaddr" connection parameters from untrusted input, attackers could bypass client-side connection security features, obtain access to higher privileged connections or potentially cause other impact through SQL injection, by causing the PQescape() functions to malfunction. Postgresql versions before 10.5, 9.6.10, 9.5.14, 9.4.19, and 9.3.24 are affected.

Weakness: CWE-89, CWE-665, CWE-200

Which versions are affected by CVE-2018-10915?

It affects 9 products.

Linux distribution packages (40)

`postgresql` Red Hat:enterprise_linux:7::client	All versions	`0:9.2.24-1.el7_5`
`postgresql-contrib` Red Hat:enterprise_linux:7::client	All versions	`0:9.2.24-1.el7_5`
`postgresql-debuginfo` Red Hat:enterprise_linux:7::client	All versions	`0:9.2.24-1.el7_5`
`postgresql-devel` Red Hat:enterprise_linux:7::client	All versions	`0:9.2.24-1.el7_5`
`postgresql-docs` Red Hat:enterprise_linux:7::client	All versions	`0:9.2.24-1.el7_5`
`postgresql-libs` Red Hat:enterprise_linux:7::client	All versions	`0:9.2.24-1.el7_5`
`postgresql-plperl` Red Hat:enterprise_linux:7::client	All versions	`0:9.2.24-1.el7_5`
`postgresql-plpython` Red Hat:enterprise_linux:7::client	All versions	`0:9.2.24-1.el7_5`
`postgresql-pltcl` Red Hat:enterprise_linux:7::client	All versions	`0:9.2.24-1.el7_5`
`postgresql-server` Red Hat:enterprise_linux:7::client	All versions	`0:9.2.24-1.el7_5`
`postgresql-static` Red Hat:enterprise_linux:7::client	All versions	`0:9.2.24-1.el7_5`
`postgresql-test` Red Hat:enterprise_linux:7::client	All versions	`0:9.2.24-1.el7_5`
`postgresql-upgrade` Red Hat:enterprise_linux:7::client	All versions	`0:9.2.24-1.el7_5`
`postgresql` Red Hat:enterprise_linux:7::computenode	All versions	`0:9.2.24-1.el7_5`
`postgresql-contrib` Red Hat:enterprise_linux:7::computenode	All versions	`0:9.2.24-1.el7_5`
`postgresql-debuginfo` Red Hat:enterprise_linux:7::computenode	All versions	`0:9.2.24-1.el7_5`
`postgresql-devel` Red Hat:enterprise_linux:7::computenode	All versions	`0:9.2.24-1.el7_5`
`postgresql-docs` Red Hat:enterprise_linux:7::computenode	All versions	`0:9.2.24-1.el7_5`
`postgresql-libs` Red Hat:enterprise_linux:7::computenode	All versions	`0:9.2.24-1.el7_5`
`postgresql-plperl` Red Hat:enterprise_linux:7::computenode	All versions	`0:9.2.24-1.el7_5`
`postgresql-plpython` Red Hat:enterprise_linux:7::computenode	All versions	`0:9.2.24-1.el7_5`
`postgresql-pltcl` Red Hat:enterprise_linux:7::computenode	All versions	`0:9.2.24-1.el7_5`
`postgresql-server` Red Hat:enterprise_linux:7::computenode	All versions	`0:9.2.24-1.el7_5`
`postgresql-static` Red Hat:enterprise_linux:7::computenode	All versions	`0:9.2.24-1.el7_5`
`postgresql-test` Red Hat:enterprise_linux:7::computenode	All versions	`0:9.2.24-1.el7_5`
`postgresql-upgrade` Red Hat:enterprise_linux:7::computenode	All versions	`0:9.2.24-1.el7_5`
`postgresql` Red Hat:enterprise_linux:7::server	All versions	`0:9.2.24-1.el7_5`
`postgresql-contrib` Red Hat:enterprise_linux:7::server	All versions	`0:9.2.24-1.el7_5`
`postgresql-debuginfo` Red Hat:enterprise_linux:7::server	All versions	`0:9.2.24-1.el7_5`
`postgresql-devel` Red Hat:enterprise_linux:7::server	All versions	`0:9.2.24-1.el7_5`
`postgresql-docs` Red Hat:enterprise_linux:7::server	All versions	`0:9.2.24-1.el7_5`
`postgresql-libs` Red Hat:enterprise_linux:7::server	All versions	`0:9.2.24-1.el7_5`
`postgresql-plperl` Red Hat:enterprise_linux:7::server	All versions	`0:9.2.24-1.el7_5`
`postgresql-plpython` Red Hat:enterprise_linux:7::server	All versions	`0:9.2.24-1.el7_5`
`postgresql-pltcl` Red Hat:enterprise_linux:7::server	All versions	`0:9.2.24-1.el7_5`
`postgresql-server` Red Hat:enterprise_linux:7::server	All versions	`0:9.2.24-1.el7_5`
`postgresql-static` Red Hat:enterprise_linux:7::server	All versions	`0:9.2.24-1.el7_5`
`postgresql-test` Red Hat:enterprise_linux:7::server	All versions	`0:9.2.24-1.el7_5`
`postgresql-upgrade` Red Hat:enterprise_linux:7::server	All versions	`0:9.2.24-1.el7_5`
`postgresql` Red Hat:enterprise_linux:7::workstation	All versions	`0:9.2.24-1.el7_5`

Products include Canonical Ubuntu Linux, Debian Debian Linux, Postgresql Postgresql, Redhat Enterprise Linux Desktop, Redhat Enterprise Linux Server, Redhat Enterprise Linux Server Eus and 3 more.

How do I fix CVE-2018-10915?

Upgrade to a fixed version.

Use parameterised queries everywhere and never build SQL by joining strings. Upgrade affected software first; a web application firewall only buys time. More about SQL injection.

Is CVE-2018-10915 being exploited?

There is no known exploitation of CVE-2018-10915 in the wild and no public exploit code.

All Canonical Ubuntu Linux vulnerabilities

Sources

Also known as ALPINE-CVE-2018-10915, CLEANSTART-2026-UI46726, DLA-1464-1, GHSA-q7vw-gjh3-qf97, RHSA-2018:2557, SUSE-SU-2018:3287-1 and 2 more.