CVE-2021-3677

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.

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.

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.

PostgreSQL is a powerful, open source object-relational database system that uses and extends the SQL language combined with many features that safely store and scale the most complicated data workloads. This package provides the essential shared library for any PostgreSQL client program or interface.

Security Fix(es):

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.(CVE-2021-3677)

A man-in-the-middle attacker can inject false responses to the client s first few queries, despite the use of SSL certificate verification and encryption.(CVE-2021-23222)

A flaw was found in postgresql. Using an INSERT ... ON CONFLICT ... DO UPDATE command on a purpose-crafted table, an authenticated database user could read arbitrary bytes of server memory. The highest threat from this vulnerability is to data confidentiality.(CVE-2021-32028)

PostgreSQL is an advanced Object-Relational database management system (DBMS). The base postgresql package contains the client programs that you'll need to access a PostgreSQL DBMS server, as well as HTML documentation for the whole system. These client programs can be located on the same machine as the PostgreSQL server, or on a remote machine that accesses a PostgreSQL server over a network connection. The PostgreSQL server can be found in the postgresql-server sub-package.

Security Fix(es):

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.(CVE-2021-3677)

IN THE EXTENSION SCRIPT, a SQL Injection vulnerability was found in PostgreSQL if it uses @extowner@, @extschema@, or @extschema:...@ inside a quoting construct (dollar quoting, '', or ""). If an administrator has installed files of a vulnerable, trusted, non-bundled extension, an attacker with database-level CREATE privilege can execute arbitrary code as the bootstrap superuser.(CVE-2023-39417)

A memory disclosure vulnerability was found in PostgreSQL that allows remote users to access sensitive information by exploiting certain aggregate function calls with 'unknown'-type arguments. Handling 'unknown'-type values from string literals without type designation can disclose bytes, potentially revealing notable and confidential information. This issue exists due to excessive data output in aggregate function calls, enabling remote users to read some portion of system memory.(CVE-2023-5868)

A flaw was found in PostgreSQL that allows authenticated database users to execute arbitrary code through missing overflow checks during SQL array value modification. This issue exists due to an integer overflow during array modification where a remote user can trigger the overflow by providing specially crafted data. This enables the execution of arbitrary code on the target system, allowing users to write arbitrary bytes to memory and extensively read the server's memory.(CVE-2023-5869)

A flaw was found in PostgreSQL involving the pg_cancel_backend role that signals background workers, including the logical replication launcher, autovacuum workers, and the autovacuum launcher. Successful exploitation requires a non-core extension with a less-resilient background worker and would affect that specific background worker only. This issue may allow a remote high privileged user to launch a denial of service (DoS) attack.(CVE-2023-5870)

Late privilege drop in REFRESH MATERIALIZED VIEW CONCURRENTLY in PostgreSQL allows an object creator to execute arbitrary SQL functions as the command issuer. The command intends to run SQL functions as the owner of the materialized view, enabling safe refresh of untrusted materialized views. The victim is a superuser or member of one of the attacker's roles. The attack requires luring the victim into running REFRESH MATERIALIZED VIEW CONCURRENTLY on the attacker's materialized view. Versions before PostgreSQL 16.2, 15.6, 14.11, 13.14, and 12.18 are affected.(CVE-2024-0985)

Incomplete tracking in PostgreSQL of tables with row security allows a reused query to view or change different rows from those intended. CVE-2023-2455 and CVE-2016-2193 fixed most interaction between row security and user ID changes. They missed cases where a subquery, WITH query, security invoker view, or SQL-language function references a table with a row-level security policy. This has the same consequences as the two earlier CVEs. That is to say, it leads to potentially incorrect policies being applied in cases where…

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

The following packages have been upgraded to a later upstream version: postgresql (12.9).

Security Fix(es):

• postgresql: memory disclosure in certain queries (CVE-2021-3677)

• postgresql: server processes unencrypted bytes from man-in-the-middle (CVE-2021-23214)

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

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

The following packages have been upgraded to a later upstream version: postgresql (13.5).

Security Fix(es):

• postgresql: memory disclosure in certain queries (CVE-2021-3677)

• postgresql: server processes unencrypted bytes from man-in-the-middle (CVE-2021-23214)

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

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.

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

The following packages have been upgraded to a later upstream version: postgresql (12.9).

Security Fix(es):

• postgresql: memory disclosure in certain queries (CVE-2021-3677)

• postgresql: server processes unencrypted bytes from man-in-the-middle (CVE-2021-23214)

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

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

The following packages have been upgraded to a later upstream version: postgresql (13.5).

Security Fix(es):

• postgresql: memory disclosure in certain queries (CVE-2021-3677)

• postgresql: server processes unencrypted bytes from man-in-the-middle (CVE-2021-23214)

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

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.

Memory disclosure in certain queries. (CVE-2021-3677)

This update for postgresql13 fixes the following issues:

• CVE-2021-3677: Fixed memory disclosure in certain queries (bsc#1189748).

• Fixed build with llvm12 on s390x (bsc#1185952).

• Re-enabled icu for PostgreSQL 10 (bsc#1179945).

• Made the dependency of postgresqlXX-server-devel on llvm and clang optional (bsc#1187751).

• llvm12 breaks PostgreSQL 11 and 12 on s390x. Use llvm11 as a workaround (bsc#1185952).

This update for postgresql12 fixes the following issues:

• CVE-2021-3677: Fixed memory disclosure in certain queries (bsc#1189748).

• Fixed build with llvm12 on s390x (bsc#1185952).

• Re-enabled icu for PostgreSQL 10 (bsc#1179945).

• Made the dependency of postgresqlXX-server-devel on llvm and clang optional (bsc#1187751).

• llvm12 breaks PostgreSQL 11 and 12 on s390x. Use llvm11 as a workaround (bsc#1185952).

These are all security issues fixed in the postgresql11-11.13-1.3 package on the GA media of openSUSE Tumbleweed.

These are all security issues fixed in the postgresql12-12.8-1.3 package on the GA media of openSUSE Tumbleweed.

These are all security issues fixed in the libecpg6-13.4-1.3 package on the GA media of openSUSE Tumbleweed.

This update for postgresql12 fixes the following issues:

• CVE-2021-3677: Fixed memory disclosure in certain queries (bsc#1189748).

• Fixed build with llvm12 on s390x (bsc#1185952).

• Re-enabled icu for PostgreSQL 10 (bsc#1179945).

• Made the dependency of postgresqlXX-server-devel on llvm and clang optional (bsc#1187751).

• llvm12 breaks PostgreSQL 11 and 12 on s390x. Use llvm11 as a workaround (bsc#1185952).

This update for postgresql13 fixes the following issues:

• CVE-2021-3677: Fixed memory disclosure in certain queries (bsc#1189748).

• Fixed build with llvm12 on s390x (bsc#1185952).

• Re-enabled icu for PostgreSQL 10 (bsc#1179945).

• Made the dependency of postgresqlXX-server-devel on llvm and clang optional (bsc#1187751).

• llvm12 breaks PostgreSQL 11 and 12 on s390x. Use llvm11 as a workaround (bsc#1185952).

This update for postgresql13 fixes the following issues:

• CVE-2021-3677: Fixed memory disclosure in certain queries (bsc#1189748).

• Fixed build with llvm12 on s390x (bsc#1185952).

• Re-enabled icu for PostgreSQL 10 (bsc#1179945).

• Made the dependency of postgresqlXX-server-devel on llvm and clang optional (bsc#1187751).

• llvm12 breaks PostgreSQL 11 and 12 on s390x. Use llvm11 as a workaround (bsc#1185952).

This update for postgresql12 fixes the following issues:

• CVE-2021-3677: Fixed memory disclosure in certain queries (bsc#1189748).

• Fixed build with llvm12 on s390x (bsc#1185952).

• Re-enabled icu for PostgreSQL 10 (bsc#1179945).

• Made the dependency of postgresqlXX-server-devel on llvm and clang optional (bsc#1187751).

• llvm12 breaks PostgreSQL 11 and 12 on s390x. Use llvm11 as a workaround (bsc#1185952).

This update for postgresql12 fixes the following issues:

• Upgrade to 12.12:

• CVE-2022-2625: Fixed an issue where extension scripts would replace objects not belonging to that extension (bsc#1202368).

• Upgrade to 12.11:

• CVE-2022-1552: Confined additional operations within 'security restricted operation' sandboxes (bsc#1199475).

• Upgrade to 12.10 (bsc#1195680)

• Add constraints file with 12GB of memory for s390x as a workaround (boo#1190740)

• Upgrade to version 12.9 (bsc#1192516):

• CVE-2021-23214: Made the server reject extraneous data after an SSL or GSS encryption handshake

• CVE-2021-23222: Made libpq reject extraneous data after an SSL or GSS encryption handshake

• Upgrade to version 12.8:

• CVE-2021-3677: Fixed memory disclosure in certain queries (bsc#1189748).

• Upgrade to version 12.7:

• CVE-2021-32027: Fixed integer overflows in array subscripting calculations (bsc#1185924).

• CVE-2021-32028: Fixed mishandling of junk columns in INSERT ... ON CONFLICT ... UPDATE target lists (bsc#1185925).

• CVE-2021-32029: Fixed possibly-incorrect computation of UPDATE ... RETURNING 'pg_psql_temporary_savepoint' does not exist (bsc#1185926).

• Fixed build with llvm12 on s390x (bsc#1185952).

• Re-enabled icu for PostgreSQL 10 (bsc#1179945).

• Made the dependency of postgresqlXX-server-devel on llvm and clang optional (bsc#1187751).

• llvm12 breaks PostgreSQL 11 and 12 on s390x. Use llvm11 as a workaround (bsc#1185952).

• Don't use %_stop_on_removal, because it was meant to be private and got removed from openSUSE. %_restart_on_update is also private, but still supported and needed for now (bsc#1183168).

It was discovered that the PostgresQL planner could create incorrect plans in certain circumstances. A remote attacker could use this issue to cause PostgreSQL to crash, resulting in a denial of service, or possibly obtain sensitive information from memory. This issue only affected Ubuntu 20.04 LTS and Ubuntu 21.04. (CVE-2021-3677)

It was discovered that PostgreSQL incorrectly handled certain SSL renegotiation ClientHello messages from clients. A remote attacker could possibly use this issue to cause PostgreSQL to crash, resulting in a denial of service. (CVE-2021-3449)