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USN-5440-1: PostgreSQL vulnerability

24 May 2022

PostgreSQL could be made to execute commands as the superuser.

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Releases

Packages

Details

Alexander Lakhin discovered that PostgreSQL incorrectly handled the
security restricted operation sandbox when a privileged user is maintaining
another user's objects. An attacker having permission to create non-temp
objects can use this issue to execute arbitrary commands as the superuser.

Reduce your security exposure

Ubuntu Pro provides ten-year security coverage to 25,000+ packages in Main and Universe repositories, and it is free for up to five machines.

Learn more about Ubuntu Pro

Update instructions

The problem can be corrected by updating your system to the following package versions:

Ubuntu 22.04
Ubuntu 21.10
Ubuntu 20.04
Ubuntu 18.04

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

Related notices

  • USN-5676-1: libpgtypes3, postgresql-plpython-9.5, postgresql-plpython3-9.5, libpq5, postgresql-server-dev-9.5, libecpg-dev, postgresql-doc-9.5, libpq-dev, postgresql-9.5, libecpg-compat3, libecpg6, postgresql-client-9.5, postgresql-plperl-9.5, postgresql-pltcl-9.5, postgresql-contrib-9.5