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AUSCERT External Security Bulletin Redistribution
ESB-2021.0561
USN-4735-1: PostgreSQL vulnerability
16 February 2021
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AusCERT Security Bulletin Summary
---------------------------------
Product: PostgreSQL
Publisher: Ubuntu
Operating System: Ubuntu
UNIX variants (UNIX, Linux, OSX)
Windows
Impact/Access: Access Confidential Data -- Existing Account
Resolution: Patch/Upgrade
CVE Names: CVE-2021-3393
Original Bulletin:
https://ubuntu.com/security/notices/USN-4735-1
Comment: This advisory references vulnerabilities in products which run on
platforms other than Ubuntu. It is recommended that administrators
running PostgreSQL check for an updated version of the software for
their operating system.
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USN-4735-1: PostgreSQL vulnerability
15 February 2021
PostgreSQL could be made to expose sensitive information.
Releases
o Ubuntu 20.10
o Ubuntu 20.04 LTS
Packages
o postgresql-12 - Object-relational SQL database
Details
Heikki Linnakangas discovered that PostgreSQL incorrectly leaked values of
denied columns when handling certain errors. A remote attacker could
possibly use this issue to obtain sensitive information.
Update instructions
The problem can be corrected by updating your system to the following package
versions:
Ubuntu 20.10
o postgresql-12 - 12.6-0ubuntu0.20.10.1
Ubuntu 20.04
o postgresql-12 - 12.6-0ubuntu0.20.04.1
This update uses a new upstream release, which includes additional bug
fixes. After a standard system update you need to restart PostgreSQL to
make all the necessary changes.
References
o CVE-2021-3393
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