CVE-2018-10925

Name	CVE-2018-10925
Description	It was discovered that PostgreSQL versions before 10.5, 9.6.10, 9.5.14, 9.4.19, and 9.3.24 failed to properly check authorization on certain statements involved with "INSERT ... ON CONFLICT DO UPDATE". An attacker with "CREATE TABLE" privileges could exploit this to read arbitrary bytes server memory. If the attacker also had certain "INSERT" and limited "UPDATE" privileges to a particular table, they could exploit this to update other columns in the same table.
Source	CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)
References	DSA-4269-1

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
postgresql-9.1 (PTS)	jessie, jessie (lts)	9.1.22-0+deb8u1	fixed
postgresql-9.4 (PTS)	jessie, jessie (lts)	9.4.26-0+deb8u9	fixed
postgresql-9.6 (PTS)	stretch (security)	9.6.24-0+deb9u1	fixed
	stretch (lts), stretch	9.6.24-0+deb9u6	fixed

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

Package	Type	Release	Fixed Version	Origin
postgresql-10	source	(unstable)	10.5-1
postgresql-9.1	source	(unstable)	(not affected)
postgresql-9.4	source	(unstable)	(not affected)
postgresql-9.5	source	(unstable)	(unfixed)
postgresql-9.6	source	stretch	9.6.10-0+deb9u1	DSA-4269-1
postgresql-9.6	source	(unstable)	(unfixed)

Notes

- postgresql-9.4 <not-affected> (Only affects PostgreSQL 9.5 onwards)
- postgresql-9.1 <not-affected> (Only affects PostgreSQL 9.5 onwards)
Fixed in 9.5.14, 9.6.10, 10.5
https://www.postgresql.org/about/news/1878/