PostgreSQL versions 10.x before 10.9 and versions 11.x before 11.4 are vulnerable to a stack-based buffer overflow. Any authenticated user can overflow a stack-based buffer by changing the user's own password to a purpose-crafted value. This often suffices to execute arbitrary code as the PostgreSQL operating system account.

The remote Redhat Enterprise Linux 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2020:0980 advisory.

  - postgresql: Selectivity estimators bypass row security policies (CVE-2019-10130)

  - postgresql: Stack-based buffer overflow via setting a password (CVE-2019-10164)

  - postgresql: TYPE in pg_temp executes arbitrary SQL during SECURITY DEFINER execution (CVE-2019-10208)

  - postgresql: ALTER ... DEPENDS ON EXTENSION is missing authorization checks (CVE-2020-1720)

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 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2021-9290 advisory.

  - A vulnerability was found in PostgreSQL versions 11.x up to excluding 11.3, 10.x up to excluding 10.8,     9.6.x up to, excluding 9.6.13, 9.5.x up to, excluding 9.5.17. PostgreSQL maintains column statistics for     tables. Certain statistics, such as histograms and lists of most common values, contain values taken from     the column. PostgreSQL does not evaluate row security policies before consulting those statistics during     query planning; an attacker can exploit this to read the most common values of certain columns. Affected     columns are those for which the attacker has SELECT privilege and for which, in an ordinary query, row-     level security prunes the set of rows visible to the attacker. (CVE-2019-10130)

  - A flaw was discovered in postgresql versions 9.4.x before 9.4.24, 9.5.x before 9.5.19, 9.6.x before     9.6.15, 10.x before 10.10 and 11.x before 11.5 where arbitrary SQL statements can be executed given a     suitable SECURITY DEFINER function. An attacker, with EXECUTE permission on the function, can execute     arbitrary SQL as the owner of the function. (CVE-2019-10208)

  - It was found that PostgreSQL versions before 12.4, before 11.9 and before 10.14 did not properly sanitize     the search_path during logical replication. An authenticated attacker could use this flaw in an attack     similar to CVE-2018-1058, in order to execute arbitrary SQL command in the context of the user used for     replication. (CVE-2020-14349)

  - PostgreSQL versions 10.x before 10.9 and versions 11.x before 11.4 are vulnerable to a stack-based buffer     overflow. Any authenticated user can overflow a stack-based buffer by changing the user's own password to     a purpose-crafted value. This often suffices to execute arbitrary code as the PostgreSQL operating system     account. (CVE-2019-10164)

  - A flaw was found in PostgreSQL's ALTER ... DEPENDS ON EXTENSION, where sub-commands did not perform     authorization checks. An authenticated attacker could use this flaw in certain configurations to perform     drop objects such as function, triggers, et al., leading to database corruption. This issue affects     PostgreSQL versions before 12.2, before 11.7, before 10.12 and before 9.6.17. (CVE-2020-1720)

  - It was found that some PostgreSQL extensions did not use search_path safely in their installation script.
    An attacker with sufficient privileges could use this flaw to trick an administrator into executing a     specially crafted script, during the installation or update of such extension. This affects PostgreSQL     versions before 12.4, before 11.9, before 10.14, before 9.6.19, and before 9.5.23. (CVE-2020-14350)

  - A flaw was found in PostgreSQL versions before 13.1, before 12.5, before 11.10, before 10.15, before     9.6.20 and before 9.5.24. If a client application that creates additional database connections only reuses     the basic connection parameters while dropping security-relevant parameters, an opportunity for a man-in-     the-middle attack, or the ability to observe clear-text transmissions, could exist. The highest threat     from this vulnerability is to data confidentiality and integrity as well as system availability.
    (CVE-2020-25694)

  - A flaw was found in the psql interactive terminal of PostgreSQL in versions before 13.1, before 12.5,     before 11.10, before 10.15, before 9.6.20 and before 9.5.24. If an interactive psql session uses \gset     when querying a compromised server, the attacker can execute arbitrary code as the operating system     account running psql. The highest threat from this vulnerability is to data confidentiality and integrity     as well as system availability. (CVE-2020-25696)

  - A flaw was found in PostgreSQL versions before 13.1, before 12.5, before 11.10, before 10.15, before     9.6.20 and before 9.5.24. An attacker having permission to create non-temporary objects in at least one     schema can execute arbitrary SQL functions under the identity of a superuser. The highest threat from this     vulnerability is to data confidentiality and integrity as well as system availability. (CVE-2020-25695)

  - A vulnerability was found in postgresql versions 11.x prior to 11.3. Using a purpose-crafted insert to a     partitioned table, an attacker can read arbitrary bytes of server memory. In the default configuration,     any user can create a partitioned table suitable for this attack. (Exploit prerequisites are the same as     for CVE-2018-1052). (CVE-2019-10129)

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

The remote CentOS Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the CESA-2020:3669 advisory.

  - postgresql: Selectivity estimators bypass row security policies (CVE-2019-10130)

  - postgresql: Stack-based buffer overflow via setting a password (CVE-2019-10164)

  - postgresql: TYPE in pg_temp executes arbitrary SQL during SECURITY DEFINER execution (CVE-2019-10208)

  - postgresql: Uncontrolled search path element in logical replication (CVE-2020-14349)

  - postgresql: Uncontrolled search path element in CREATE EXTENSION (CVE-2020-14350)

  - postgresql: ALTER ... DEPENDS ON EXTENSION is missing authorization checks (CVE-2020-1720)

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-2021:0166 advisory.

  - postgresql: Selectivity estimators bypass row security policies (CVE-2019-10130)

  - postgresql: Stack-based buffer overflow via setting a password (CVE-2019-10164)

  - postgresql: TYPE in pg_temp executes arbitrary SQL during SECURITY DEFINER execution (CVE-2019-10208)

  - postgresql: Uncontrolled search path element in logical replication (CVE-2020-14349)

  - postgresql: Uncontrolled search path element in CREATE EXTENSION (CVE-2020-14350)

  - postgresql: ALTER ... DEPENDS ON EXTENSION is missing authorization checks (CVE-2020-1720)

  - postgresql: Reconnection can downgrade connection security settings (CVE-2020-25694)

  - postgresql: Multiple features escape security restricted operation sandbox (CVE-2020-25695)

  - postgresql: psql's \gset allows overwriting specially treated variables (CVE-2020-25696)

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-2020:5664 advisory.

  - postgresql: Selectivity estimators bypass row security policies (CVE-2019-10130)

  - postgresql: Stack-based buffer overflow via setting a password (CVE-2019-10164)

  - postgresql: TYPE in pg_temp executes arbitrary SQL during SECURITY DEFINER execution (CVE-2019-10208)

  - postgresql: Uncontrolled search path element in logical replication (CVE-2020-14349)

  - postgresql: Uncontrolled search path element in CREATE EXTENSION (CVE-2020-14350)

  - postgresql: ALTER ... DEPENDS ON EXTENSION is missing authorization checks (CVE-2020-1720)

  - postgresql: Reconnection can downgrade connection security settings (CVE-2020-25694)

  - postgresql: Multiple features escape security restricted operation sandbox (CVE-2020-25695)

  - postgresql: psql's \gset allows overwriting specially treated variables (CVE-2020-25696)

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-2020-3669 advisory.

  - A vulnerability was found in PostgreSQL versions 11.x up to excluding 11.3, 10.x up to excluding 10.8,     9.6.x up to, excluding 9.6.13, 9.5.x up to, excluding 9.5.17. PostgreSQL maintains column statistics for     tables. Certain statistics, such as histograms and lists of most common values, contain values taken from     the column. PostgreSQL does not evaluate row security policies before consulting those statistics during     query planning; an attacker can exploit this to read the most common values of certain columns. Affected     columns are those for which the attacker has SELECT privilege and for which, in an ordinary query, row-     level security prunes the set of rows visible to the attacker. (CVE-2019-10130)

  - A flaw was discovered in postgresql versions 9.4.x before 9.4.24, 9.5.x before 9.5.19, 9.6.x before     9.6.15, 10.x before 10.10 and 11.x before 11.5 where arbitrary SQL statements can be executed given a     suitable SECURITY DEFINER function. An attacker, with EXECUTE permission on the function, can execute     arbitrary SQL as the owner of the function. (CVE-2019-10208)

  - It was found that PostgreSQL versions before 12.4, before 11.9 and before 10.14 did not properly sanitize     the search_path during logical replication. An authenticated attacker could use this flaw in an attack     similar to CVE-2018-1058, in order to execute arbitrary SQL command in the context of the user used for     replication. (CVE-2020-14349)

  - PostgreSQL versions 10.x before 10.9 and versions 11.x before 11.4 are vulnerable to a stack-based buffer     overflow. Any authenticated user can overflow a stack-based buffer by changing the user's own password to     a purpose-crafted value. This often suffices to execute arbitrary code as the PostgreSQL operating system     account. (CVE-2019-10164)

  - A flaw was found in PostgreSQL's ALTER ... DEPENDS ON EXTENSION, where sub-commands did not perform     authorization checks. An authenticated attacker could use this flaw in certain configurations to perform     drop objects such as function, triggers, et al., leading to database corruption. This issue affects     PostgreSQL versions before 12.2, before 11.7, before 10.12 and before 9.6.17. (CVE-2020-1720)

  - It was found that some PostgreSQL extensions did not use search_path safely in their installation script.
    An attacker with sufficient privileges could use this flaw to trick an administrator into executing a     specially crafted script, during the installation or update of such extension. This affects PostgreSQL     versions before 12.4, before 11.9, before 10.14, before 9.6.19, and before 9.5.23. (CVE-2020-14350)

Note that Nessus has not tested for this issue 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-2020:3669 advisory.

  - postgresql: Selectivity estimators bypass row security policies (CVE-2019-10130)

  - postgresql: Stack-based buffer overflow via setting a password (CVE-2019-10164)

  - postgresql: TYPE in pg_temp executes arbitrary SQL during SECURITY DEFINER execution (CVE-2019-10208)

  - postgresql: Uncontrolled search path element in logical replication (CVE-2020-14349)

  - postgresql: Uncontrolled search path element in CREATE EXTENSION (CVE-2020-14350)

  - postgresql: ALTER ... DEPENDS ON EXTENSION is missing authorization checks (CVE-2020-1720)

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

The remote host is affected by the vulnerability described in GLSA-202003-03 (PostgreSQL: Multiple vulnerabilities)

    Multiple vulnerabilities have been discovered in PostgreSQL. Please       review the CVE identifiers referenced below for details.
  Impact :

    A remote attacker could possibly execute arbitrary code with the       privileges of the process, bypass certain client-side connection security       features, read arbitrary server memory, alter certain data or cause a       Denial of Service condition.
  Workaround :

    There is no known workaround at this time.

According to the version of the postgresql packages installed, the EulerOS installation on the remote host is affected by the following vulnerability :

  - PostgreSQL versions 10.x before 10.9 and versions 11.x     before 11.4 are vulnerable to a stack-based buffer     overflow. Any authenticated user can overflow a     stack-based buffer by changing the user's own password     to a purpose-crafted value. This often suffices to     execute arbitrary code as the PostgreSQL operating     system account.(CVE-2019-10164)

Note that Tenable Network Security has extracted the preceding description block directly from the EulerOS security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

This update for postgresql10 fixes the following issues :

Security issue fixed :

CVE-2019-10164: Fixed buffer-overflow vulnerabilities in SCRAM verifier parsing (bsc#1138034).

CVE-2019-10130: Prevent row-level security policies from being bypassed via selectivity estimators (bsc#1134689).

Bug fixes: For a complete list of fixes check the release notes.

    - https://www.postgresql.org/docs/10/release-10-9.html

    - https://www.postgresql.org/docs/10/release-10-8.html

    - https://www.postgresql.org/docs/10/release-10-7.html

Note that Tenable Network Security has extracted the preceding description block directly from the SUSE security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

This update for postgresql10 to version 10.9 fixes the following issue :

Security issue fixed :

CVE-2019-10164: Fixed buffer-overflow vulnerabilities in SCRAM verifier parsing (bsc#1138034).

More information at https://www.postgresql.org/docs/10/release-10-9.html

Note that Tenable Network Security has extracted the preceding description block directly from the SUSE security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

New upstream release 10.9 Per release notes:
https://www.postgresql.org/docs/10/release-10-9.html

Note that Tenable Network Security has extracted the preceding description block directly from the Fedora update system website.
Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

New upstream release 11.4 Per release notes:
https://www.postgresql.org/docs/11/release-11-4.html

Note that Tenable Network Security has extracted the preceding description block directly from the Fedora update system website.
Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

An update of the postgresql package has been released.

This update for postgresql10 fixes the following issues :

Security issue fixed :

  - CVE-2019-10164: Fixed buffer-overflow vulnerabilities in     SCRAM verifier parsing (bsc#1138034).

  - CVE-2019-10130: Prevent row-level security policies from     being bypassed via selectivity estimators (bsc#1134689).

Bug fixes :

  - For a complete list of fixes check the release notes.

    - https://www.postgresql.org/docs/10/release-10-9.html

    - https://www.postgresql.org/docs/10/release-10-8.html

    - https://www.postgresql.org/docs/10/release-10-7.html

This update was imported from the SUSE:SLE-15:Update update project.

The PostgreSQL project reports :

An authenticated user could create a stack-based buffer overflow by changing their own password to a purpose-crafted value. In addition to the ability to crash the PostgreSQL server, this could be further exploited to execute arbitrary code as the PostgreSQL operating system account.

Additionally, a rogue server could send a specifically crafted message during the SCRAM authentication process and cause a libpq-enabled client to either crash or execute arbitrary code as the client's operating system account.

This issue is fixed by upgrading and restarting your PostgreSQL server as well as your libpq installations. All users running PostgreSQL 10, 11, and 12 beta are encouraged to upgrade as soon as possible.

The version of PostgreSQL installed on the remote host is 10.x prior to 10.9 or 11.x prior to 11.4. As such, it is potentially affected by a stack overflow vulnerability. Any authenticated user can overflow a stack-based buffer by changing the user's own password to a purpose-crafted value.

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

Alexander Lakhin discovered that PostgreSQL incorrectly handled authentication. An authenticated attacker or a rogue server could use this issue to cause PostgreSQL to crash, resulting in a denial of service, or possibly execute arbitrary code. The default compiler options for affected releases should reduce the vulnerability to a denial of service.

Note that Tenable Network Security has extracted the preceding description block directly from the Ubuntu security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

ID	Name	Product	Family	Severity
170334	RHEL 7 : rh-postgresql10-postgresql (RHSA-2020:0980)	Nessus	Red Hat Local Security Checks	high
150722	Oracle Linux 7 : rh-postgresql10-postgresql (ELSA-2021-9290)	Nessus	Oracle Linux Local Security Checks	high
145882	CentOS 8 : postgresql:10 (CESA-2020:3669)	Nessus	CentOS Local Security Checks	high
145243	RHEL 8 : postgresql:10 (RHSA-2021:0166)	Nessus	Red Hat Local Security Checks	high
144559	RHEL 8 : postgresql:10 (RHSA-2020:5664)	Nessus	Red Hat Local Security Checks	high
140486	Oracle Linux 8 : postgresql:10 (ELSA-2020-3669)	Nessus	Oracle Linux Local Security Checks	high
140398	RHEL 8 : postgresql:10 (RHSA-2020:3669)	Nessus	Red Hat Local Security Checks	high
134470	GLSA-202003-03 : PostgreSQL: Multiple vulnerabilities	Nessus	Gentoo Local Security Checks	high
128193	EulerOS 2.0 SP8 : postgresql (EulerOS-SA-2019-1824)	Nessus	Huawei Local Security Checks	high
127752	SUSE SLED15 / SLES15 Security Update : postgresql10 (SUSE-SU-2019:2012-1)	Nessus	SuSE Local Security Checks	high
127744	SUSE SLES12 Security Update : postgresql10 (SUSE-SU-2019:1783-2)	Nessus	SuSE Local Security Checks	high
127085	Fedora 29 : postgresql (2019-e43f49b428)	Nessus	Fedora Local Security Checks	high
127081	Fedora 30 : libpq / postgresql (2019-9f04a701c0)	Nessus	Fedora Local Security Checks	high
126955	Photon OS 1.0: Postgresql PHSA-2019-1.0-0243	Nessus	PhotonOS Local Security Checks	high
126905	openSUSE Security Update : postgresql10 (openSUSE-2019-1773)	Nessus	SuSE Local Security Checks	high
126618	SUSE SLED15 / SLES15 Security Update : postgresql10 (SUSE-SU-2019:1810-1)	Nessus	SuSE Local Security Checks	high
126595	SUSE SLED12 / SLES12 Security Update : postgresql10 (SUSE-SU-2019:1783-1)	Nessus	SuSE Local Security Checks	high
126315	FreeBSD : PostgreSQL -- Stack-based buffer overflow via setting a password (245629d4-991e-11e9-82aa-6cc21735f730)	Nessus	FreeBSD Local Security Checks	high
126309	PostgreSQL 10.x < 10.9 / 11.x < 11.4 Stack Overflow Vulnerability (CVE-2019-10164)	Nessus	Databases	high
126098	Ubuntu 18.04 LTS : PostgreSQL vulnerability (USN-4027-1)	Nessus	Ubuntu Local Security Checks	high

Detections

Analytics

CVE-2019-10164

high

Tenable Plugins

high

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