Multiple integer overflows in contrib/hstore/hstore_io.c in PostgreSQL 9.0.x before 9.0.16, 9.1.x before 9.1.12, 9.2.x before 9.2.7, and 9.3.x before 9.3.3 allow remote authenticated users to have unspecified impact via vectors related to the (1) hstore_recv, (2) hstore_from_arrays, and (3) hstore_from_array functions in contrib/hstore/hstore_io.c; and the (4) hstoreArrayToPairs function in contrib/hstore/hstore_op.c, which triggers a buffer overflow. NOTE: this issue was SPLIT from CVE-2014-0064 because it has a different set of affected versions.
https://github.com/postgres/postgres/commit/31400a673325147e1205326008e32135a78b4d8a
http://www.postgresql.org/support/security/
http://www.postgresql.org/about/news/1506/
http://www.debian.org/security/2014/dsa-2865
http://www.debian.org/security/2014/dsa-2864
http://wiki.postgresql.org/wiki/20140220securityrelease