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Debian LTS Advisory DLA-2478-1                [email protected]
https://www.debian.org/lts/security/               Emilio Pozuelo Monfort
December 02, 2020                             https://wiki.debian.org/LTS
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Package        : postgresql-9.6
Version        : 9.6.20-0+deb9u1
CVE ID         : CVE-2020-25694 CVE-2020-25695 CVE-2020-25696

Several vulnerabilities have been found in the PostgreSQL database system.


    Peter Eisentraut found that database reconnections may drop options
    from the original connection, such as encryption, which could lead
    to information disclosure or a man-in-the-middle attack.


    Etienne Stalmans reported that a user with permissions to create
    non-temporary objects in an schema can execute arbitrary SQL
    functions as a superuser.


    Nick Cleaton found that the \gset command modified variables that
    control the psql behaviour, which could result in a compromised or
    malicious server executing arbitrary code in the user session.

For Debian 9 stretch, these problems have been fixed in version

We recommend that you upgrade your postgresql-9.6 packages.

For the detailed security status of postgresql-9.6 please refer to
its security tracker page at:

Further information about Debian LTS security advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://wiki.debian.org/LTS