The remote Oracle Linux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2023-7784 advisory.

  - 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)

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote Redhat Enterprise Linux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2023:7616 advisory.

  - postgresql: Memory disclosure in aggregate function calls (CVE-2023-5868)

  - postgresql: Buffer overrun from integer overflow in array modification (CVE-2023-5869)

  - postgresql: Role pg_signal_backend can signal certain superuser processes. (CVE-2023-5870)

  - postgresql: extension script @substitutions@ within quoting allow SQL injection (CVE-2023-39417)

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote Rocky Linux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the RLSA-2023:7785 advisory.

  - 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 vulnerability was found in PostgreSQL with the use of the MERGE command, which fails to test new rows     against row security policies defined for UPDATE and SELECT. If UPDATE and SELECT policies forbid some     rows that INSERT policies do not forbid, a user could store such rows. (CVE-2023-39418)

  - 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)

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The version of postgresql installed on the remote host is prior to 12.17-1. It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2POSTGRESQL12-2024-007 advisory.

  - 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)

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote SUSE Linux SLES12 / SLES_SAP12 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2023:4434-1 advisory.

  - PostgreSQL Project reports:              Certain aggregate function calls receiving unknown-type     arguments could disclose bytes of server memory from the end of             the unknown-type value to     the next zero byte. One typically             gets an unknown-type value via a string literal having no     type             designation. We have not confirmed or ruled out viability of             attacks that     arrange for presence of notable, confidential             information in disclosed bytes.
    (CVE-2023-5868)

  - PostgreSQL Project reports:              While modifying certain SQL array values, missing     overflow checks let authenticated database users write             arbitrary bytes to a memory area that     facilitates             arbitrary code execution. Missing overflow checks also             let     authenticated database users read a wide area of             server memory. The CVE-2021-32027 fix covered     some             attacks of this description, but it missed others.            (CVE-2023-5869)

  - PostgreSQL Project reports:              Documentation says the pg_cancel_backend role cannot     signal a backend owned by a superuser. On the             contrary, it can signal background workers,     including             the logical replication launcher. It can signal             autovacuum workers and     the autovacuum launcher.             Signaling autovacuum workers and those two launchers     provides no meaningful exploit, so exploiting this             vulnerability requires a non-core extension     with a             less-resilient background worker. For example, a             non-core background worker     that does not auto-restart             would experience a denial of service with respect to     that particular background worker.            (CVE-2023-5870)

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The version of postgresql installed on the remote host is prior to 13.13-1. It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2POSTGRESQL13-2024-005 advisory.

  - 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)

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote Debian 10 host has packages installed that are affected by multiple vulnerabilities as referenced in the dla-3651 advisory.

  - PostgreSQL Project reports:              Certain aggregate function calls receiving unknown-type     arguments could disclose bytes of server memory from the end of             the unknown-type value to     the next zero byte. One typically             gets an unknown-type value via a string literal having no     type             designation. We have not confirmed or ruled out viability of             attacks that     arrange for presence of notable, confidential             information in disclosed bytes.
    (CVE-2023-5868)

  - PostgreSQL Project reports:              While modifying certain SQL array values, missing     overflow checks let authenticated database users write             arbitrary bytes to a memory area that     facilitates             arbitrary code execution. Missing overflow checks also             let     authenticated database users read a wide area of             server memory. The CVE-2021-32027 fix covered     some             attacks of this description, but it missed others.            (CVE-2023-5869)

  - PostgreSQL Project reports:              Documentation says the pg_cancel_backend role cannot     signal a backend owned by a superuser. On the             contrary, it can signal background workers,     including             the logical replication launcher. It can signal             autovacuum workers and     the autovacuum launcher.             Signaling autovacuum workers and those two launchers     provides no meaningful exploit, so exploiting this             vulnerability requires a non-core extension     with a             less-resilient background worker. For example, a             non-core background worker     that does not auto-restart             would experience a denial of service with respect to     that particular background worker.            (CVE-2023-5870)

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote Oracle Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2023-7884 advisory.

  - 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 vulnerability was found in PostgreSQL with the use of the MERGE command, which fails to test new rows     against row security policies defined for UPDATE and SELECT. If UPDATE and SELECT policies forbid some     rows that INSERT policies do not forbid, a user could store such rows. (CVE-2023-39418)

  - 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 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)

  - 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)

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote Redhat Enterprise Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2023:7656 advisory.

  - postgresql: Memory disclosure in aggregate function calls (CVE-2023-5868)

  - postgresql: Buffer overrun from integer overflow in array modification (CVE-2023-5869)

  - postgresql: Role pg_signal_backend can signal certain superuser processes. (CVE-2023-5870)

  - postgresql: extension script @substitutions@ within quoting allow SQL injection (CVE-2023-39417)

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

ID	Name	Product	Family	Published	Updated	Severity
187032	Oracle Linux 9 : postgresql (ELSA-2023-7784)	Nessus	Oracle Linux Local Security Checks	12/15/2023	2/16/2024	high
186484	RHEL 9 : postgresql (RHSA-2023:7616)	Nessus	Red Hat Local Security Checks	11/30/2023	4/28/2024	high
187706	Rocky Linux 9 : postgresql:15 (RLSA-2023:7785)	Nessus	Rocky Linux Local Security Checks	1/9/2024	1/9/2024	high
189478	Amazon Linux 2 : postgresql (ALASPOSTGRESQL12-2024-007)	Nessus	Amazon Linux Local Security Checks	1/24/2024	2/16/2024	high
185728	SUSE SLES12 Security Update : postgresql13 (SUSE-SU-2023:4434-1)	Nessus	SuSE Local Security Checks	11/15/2023	2/16/2024	high
189468	Amazon Linux 2 : postgresql (ALASPOSTGRESQL13-2024-005)	Nessus	Amazon Linux Local Security Checks	1/24/2024	2/16/2024	high
185523	Debian DLA-3651-1 : postgresql-11 - LTS security update	Nessus	Debian Local Security Checks	11/14/2023	2/16/2024	high
187183	Oracle Linux 8 : postgresql:15 (ELSA-2023-7884)	Nessus	Oracle Linux Local Security Checks	12/21/2023	2/16/2024	high
189640	RHEL 8 : postgresql:12 (RHSA-2023:7656)	Nessus	Red Hat Local Security Checks	1/26/2024	4/28/2024	high

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