CVE-2021-3393

Name	CVE-2021-3393
Description	An information leak was discovered in postgresql in versions before 13.2, before 12.6 and before 11.11. A user having UPDATE permission but not SELECT permission to a particular column could craft queries which, under some circumstances, might disclose values from that column in error messages. An attacker could use this flaw to obtain information stored in a column they are allowed to write but not read.
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	11.11-0+deb10u1
postgresql-11	source	(unstable)	(unfixed)
postgresql-13	source	(unstable)	13.2-1

https://www.postgresql.org/about/news/postgresql-132-126-1111-1016-9621-and-9525-released-2165/