CVE-2018-1053 Information disclosure in postgresql

What is CVE-2018-1053?

CVE-2018-1053 is a high-severity vulnerability in Canonical Ubuntu Linux, published on 9 Feb 2018. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

In postgresql 9.3.x before 9.3.21, 9.4.x before 9.4.16, 9.5.x before 9.5.11, 9.6.x before 9.6.7 and 10.x before 10.2, pg_upgrade creates file in current working directory containing the output of `pg_dumpall -g` under umask which was in effect when the user invoked pg_upgrade, and not under 0077 which is normally used for other temporary files. This can allow an authenticated attacker to read or modify the one file, which may contain encrypted or unencrypted database passwords. The attack is infeasible if a directory mode blocks the attacker searching the current working directory or if the prevailing umask blocks the attacker opening the file.

Weakness: CWE-732, CWE-377

Which versions are affected by CVE-2018-1053?

It affects 4 products.

Products include Canonical Ubuntu Linux, Debian Debian Linux, Postgresql Postgresql, Redhat Cloudforms.

How do I fix CVE-2018-1053?

Upgrade to a fixed version.

Is CVE-2018-1053 being exploited?

There is no known exploitation of CVE-2018-1053 in the wild and no public exploit code.

Other vulnerabilities in Canonical Ubuntu Linux

• CVE-2020-11651 SaltStack Salt Authentication Bypass Exploited Critical 9.8
• CVE-2020-7247 OpenSMTPD Remote Code Execution Exploited Critical 9.8
• CVE-2019-16928 Exim Out-of-bounds Write Exploited Critical 9.8
• CVE-2018-6789 Exim Buffer Overflow Exploited Critical 9.8
• CVE-2015-2590 Oracle Java SE and Java SE Embedded Remote Code Execution Exploited Critical 9.8

All Canonical Ubuntu Linux vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as ALPINE-CVE-2018-1053, CLEANSTART-2026-ZK79671, DLA-1271-1, GHSA-h73g-3m4r-j2cr, MGASA-2018-0137, SUSE-SU-2018:0506-1 and 4 more.