CVE-2021-3677

Name	CVE-2021-3677
Description	A flaw was found in postgresql. A purpose-crafted query can read arbitrary bytes of server memory. In the default configuration, any authenticated database user can complete this attack at will. The attack does not require the ability to create objects. If server settings include max_worker_processes=0, the known versions of this attack are infeasible. However, undiscovered variants of the attack may be independent of that setting.
Source	CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
postgresql-11 (PTS)	buster	11.16-0+deb10u1	fixed
	buster (security)	11.22-0+deb10u2	fixed
postgresql-13 (PTS)	bullseye	13.13-0+deb11u1	fixed
	bullseye (security)	13.14-0+deb11u1	fixed

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

Package	Type	Release	Fixed Version
postgresql-11	source	buster	11.13-0+deb10u1
postgresql-11	source	(unstable)	(unfixed)
postgresql-13	source	bullseye	13.4-0+deb11u1
postgresql-13	source	(unstable)	13.4-1

https://www.postgresql.org/about/news/postgresql-134-128-1113-1018-9623-and-14-beta-3-released-2277/