CVE-2020-25694

Name	CVE-2020-25694
Description	A flaw was found in PostgreSQL versions before 13.1, before 12.5, before 11.10, before 10.15, before 9.6.20 and before 9.5.24. If a client application that creates additional database connections only reuses the basic connection parameters while dropping security-relevant parameters, an opportunity for a man-in-the-middle attack, or the ability to observe clear-text transmissions, could exist. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.
Source	CVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, Mageia, GitHub code/issues, web search, more)
NVD severity	medium

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
postgresql-11 (PTS)	buster	11.9-0+deb10u1	vulnerable
	buster (security)	11.7-0+deb10u1	vulnerable
postgresql-12 (PTS)	sid	12.4-3	vulnerable
postgresql-13 (PTS)	bullseye, sid	13.1-1	fixed
postgresql-9.6 (PTS)	stretch	9.6.17-0+deb9u1	vulnerable
	stretch (security)	9.6.19-0+deb9u1	vulnerable

The information below is based on the following data on fixed versions.

Package	Type	Release	Fixed Version
postgresql-11	source	(unstable)	(unfixed)
postgresql-12	source	(unstable)	(unfixed)
postgresql-13	source	(unstable)	13.1-1
postgresql-9.6	source	(unstable)	(unfixed)

Notes

[buster] - postgresql-11 <no-dsa> (Minor issue)
[stretch] - postgresql-9.6 <no-dsa> (Minor issue)
https://www.postgresql.org/about/news/postgresql-131-125-1110-1015-9620-and-9524-released-2111/