rh-postgresql95-postgresql-9.5.14-1.AXS4

PostgreSQL is an advanced object-relational database management system (DBMS).

The following packages have been upgraded to a later upstream version: rh-postgresql95-postgresql (9.5.14). (BZ#1612671)

Security Fix(es):

* postgresql: Certain host connection parameters defeat client-side security defenses (CVE-2018-10915)

* postgresql: Missing authorization and memory disclosure in INSERT ... ON CONFLICT DO UPDATE statements (CVE-2018-10925)

* postgresql: Memory disclosure in JSON functions (CVE-2017-15098)

* postgresql: pg_upgrade creates file of sensitive metadata under prevailing umask (CVE-2018-1053)

* postgresql: Uncontrolled search path element in pg_dump and other client applications (CVE-2018-1058)

* postgresql: INSERT ... ON CONFLICT DO UPDATE fails to enforce SELECT privileges (CVE-2017-15099)

For more details about the security issue(s), including the impact, a CVSS score, and other related information, refer to the CVE page(s) listed in the References section.

Asianux would like to thank the PostgreSQL project for reporting CVE-2018-10915, CVE-2018-10925, CVE-2017-15098, CVE-2018-1053, and CVE-2017-15099. Upstream acknowledges Andrew Krasichkov as the original reporter of CVE-2018-10915; David Rowley as the original reporter of CVE-2017-15098; Tom Lane as the original reporter of CVE-2018-1053; and Dean Rasheed as the original reporter of CVE-2017-15099.

CVE-2017-15098
Invalid json_populate_recordset or jsonb_populate_recordset function calls in PostgreSQL 10.x before 10.1, 9.6.x before 9.6.6, 9.5.x before 9.5.10, 9.4.x before 9.4.15, and 9.3.x before 9.3.20 can crash the server or disclose a few bytes of server memory.
CVE-2017-15099
INSERT ... ON CONFLICT DO UPDATE commands in PostgreSQL 10.x before 10.1, 9.6.x before 9.6.6, and 9.5.x before 9.5.10 disclose table contents that the invoker lacks privilege to read. These exploits affect only tables where the attacker lacks full read access but has both INSERT and UPDATE privileges. Exploits bypass row level security policies and lack of SELECT privilege.
CVE-2018-1053
In postgresql 9.3.x before 9.3.21, 9.4.x before 9.4.16, 9.5.x before 9.5.11, 9.6.x before 9.6.7 and 10.x before 10.2, pg_upgrade creates file in current working directory containing the output of `pg_dumpall -g` under umask which was in effect when the user invoked pg_upgrade, and not under 0077 which is normally used for other temporary files. This can allow an authenticated attacker to read or modify the one file, which may contain encrypted or unencrypted database passwords. The attack is infeasible if a directory mode blocks the attacker searching the current working directory or if the prevailing umask blocks the attacker opening the file.
CVE-2018-1058
A flaw was found in the way Postgresql allowed a user to modify the behavior of a query for other users. An attacker with a user account could use this flaw to execute code with the permissions of superuser in the database. Versions 9.3 through 10 are affected.
CVE-2018-10915
A vulnerability was found in libpq, the default PostgreSQL client library where libpq failed to properly reset its internal state between connections. If an affected version of libpq was used with "host" or "hostaddr" connection parameters from untrusted input, attackers could bypass client-side connection security features, obtain access to higher privileged connections or potentially cause other impact through SQL injection, by causing the PQescape() functions to malfunction. Postgresql versions before 10.5, 9.6.10, 9.5.14, 9.4.19, and 9.3.24 are affected.
CVE-2018-10925
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.