SUSE update for postgresql12

Published: 2021-05-27

Risk	Medium
Patch available	YES
Number of vulnerabilities	4
CVE-ID	CVE-2021-32027 CVE-2021-32028 CVE-2021-32029 CVE-2021-3393
CWE-ID	CWE-190 CWE-401 CWE-200
Exploitation vector	Network
Public exploit	N/A
Vulnerable software Subscribe	SUSE Linux Enterprise Software Development Kit Operating systems & Components / Operating system SUSE Linux Enterprise Server Operating systems & Components / Operating system postgresql12-docs Operating systems & Components / Operating system package or component postgresql12-server-debuginfo Operating systems & Components / Operating system package or component postgresql12-server Operating systems & Components / Operating system package or component postgresql12-pltcl-debuginfo Operating systems & Components / Operating system package or component postgresql12-pltcl Operating systems & Components / Operating system package or component postgresql12-plpython-debuginfo Operating systems & Components / Operating system package or component postgresql12-plpython Operating systems & Components / Operating system package or component postgresql12-plperl-debuginfo Operating systems & Components / Operating system package or component postgresql12-plperl Operating systems & Components / Operating system package or component postgresql12-debuginfo Operating systems & Components / Operating system package or component postgresql12-contrib-debuginfo Operating systems & Components / Operating system package or component postgresql12-contrib Operating systems & Components / Operating system package or component postgresql12 Operating systems & Components / Operating system package or component postgresql12-server-devel-debuginfo Operating systems & Components / Operating system package or component postgresql12-server-devel Operating systems & Components / Operating system package or component postgresql12-devel-debuginfo Operating systems & Components / Operating system package or component postgresql12-devel Operating systems & Components / Operating system package or component postgresql12-debugsource Operating systems & Components / Operating system package or component
Vendor	SUSE

Security Bulletin

This security bulletin contains information about 4 vulnerabilities.

1) Integer overflow

EUVDB-ID: #VU53231

Risk: Medium

CVSSv3.1: 7.1 [CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-32027

CWE-ID: CWE-190 - Integer overflow

Exploit availability: No

Description

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to integer overflow when processing certain SQL array values during array subscribing calculation. An authenticated database user can pass specially crafted data to the application, trigger integer overflow and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system and can be exploited by a remote unauthenticated attacker via SQL injection vulnerability in the frontend application.

Mitigation

Update the affected package postgresql12 to the latest version.

Vulnerable software versions

SUSE Linux Enterprise Software Development Kit: 12-SP5

SUSE Linux Enterprise Server: 12-SP5

postgresql12-docs: before 12.7-3.15.3

postgresql12-server-debuginfo: before 12.7-3.15.3

postgresql12-server: before 12.7-3.15.3

postgresql12-pltcl-debuginfo: before 12.7-3.15.3

postgresql12-pltcl: before 12.7-3.15.3

postgresql12-plpython-debuginfo: before 12.7-3.15.3

postgresql12-plpython: before 12.7-3.15.3

postgresql12-plperl-debuginfo: before 12.7-3.15.3

postgresql12-plperl: before 12.7-3.15.3

postgresql12-debuginfo: before 12.7-3.15.3

postgresql12-contrib-debuginfo: before 12.7-3.15.3

postgresql12-contrib: before 12.7-3.15.3

postgresql12: before 12.7-3.15.3

postgresql12-server-devel-debuginfo: before 12.7-3.15.3

postgresql12-server-devel: before 12.7-3.15.3

postgresql12-devel-debuginfo: before 12.7-3.15.3

postgresql12-devel: before 12.7-3.15.3

postgresql12-debugsource: before 12.7-3.15.3

External links

http://www.suse.com/support/update/announcement/2021/suse-su-20211783-1/

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

2) Memory leak

EUVDB-ID: #VU53232

Risk: Medium

CVSSv3.1: 6.7 [CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-32028

CWE-ID: CWE-401 - Missing release of memory after effective lifetime

Exploit availability: No

Description

The vulnerability allows a remote user to gain access to sensitive information.

The vulnerability exists due memory leak within the INSERT ... ON CONFLICT ... DO UPDATE command implementation. A remote authenticated database user can execute the affected command to read arbitrary bytes of server memory. In the default configuration, any authenticated database user can create prerequisite objects and complete this attack at will.

Mitigation

Update the affected package postgresql12 to the latest version.

Vulnerable software versions

SUSE Linux Enterprise Software Development Kit: 12-SP5

SUSE Linux Enterprise Server: 12-SP5

postgresql12-docs: before 12.7-3.15.3

postgresql12-server-debuginfo: before 12.7-3.15.3

postgresql12-server: before 12.7-3.15.3

postgresql12-pltcl-debuginfo: before 12.7-3.15.3

postgresql12-pltcl: before 12.7-3.15.3

postgresql12-plpython-debuginfo: before 12.7-3.15.3

postgresql12-plpython: before 12.7-3.15.3

postgresql12-plperl-debuginfo: before 12.7-3.15.3

postgresql12-plperl: before 12.7-3.15.3

postgresql12-debuginfo: before 12.7-3.15.3

postgresql12-contrib-debuginfo: before 12.7-3.15.3

postgresql12-contrib: before 12.7-3.15.3

postgresql12: before 12.7-3.15.3

postgresql12-server-devel-debuginfo: before 12.7-3.15.3

postgresql12-server-devel: before 12.7-3.15.3

postgresql12-devel-debuginfo: before 12.7-3.15.3

postgresql12-devel: before 12.7-3.15.3

postgresql12-debugsource: before 12.7-3.15.3

External links

http://www.suse.com/support/update/announcement/2021/suse-su-20211783-1/

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

3) Memory leak

EUVDB-ID: #VU53233

Risk: Medium

CVSSv3.1: 6.7 [CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-32029

CWE-ID: CWE-401 - Missing release of memory after effective lifetime

Exploit availability: No

Description

The vulnerability allows a remote user to gain access to sensitive information.

The vulnerability exists due memory leak when processing UPDATE ... RETURNING command on a purpose-crafted partitioned table. A remote authenticated user can run the affected command and read arbitrary bytes of server memory. In the default configuration, any authenticated database user can create prerequisite objects and complete this attack at will.

Mitigation

Update the affected package postgresql12 to the latest version.

Vulnerable software versions

SUSE Linux Enterprise Software Development Kit: 12-SP5

SUSE Linux Enterprise Server: 12-SP5

postgresql12-docs: before 12.7-3.15.3

postgresql12-server-debuginfo: before 12.7-3.15.3

postgresql12-server: before 12.7-3.15.3

postgresql12-pltcl-debuginfo: before 12.7-3.15.3

postgresql12-pltcl: before 12.7-3.15.3

postgresql12-plpython-debuginfo: before 12.7-3.15.3

postgresql12-plpython: before 12.7-3.15.3

postgresql12-plperl-debuginfo: before 12.7-3.15.3

postgresql12-plperl: before 12.7-3.15.3

postgresql12-debuginfo: before 12.7-3.15.3

postgresql12-contrib-debuginfo: before 12.7-3.15.3

postgresql12-contrib: before 12.7-3.15.3

postgresql12: before 12.7-3.15.3

postgresql12-server-devel-debuginfo: before 12.7-3.15.3

postgresql12-server-devel: before 12.7-3.15.3

postgresql12-devel-debuginfo: before 12.7-3.15.3

postgresql12-devel: before 12.7-3.15.3

postgresql12-debugsource: before 12.7-3.15.3

External links

http://www.suse.com/support/update/announcement/2021/suse-su-20211783-1/

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

4) Information disclosure

EUVDB-ID: #VU50655

Risk: Low

CVSSv3.1: 3.8 [CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-3393

CWE-ID: CWE-200 - Information exposure

Exploit availability: No

Description

The vulnerability allows a remote user to gain access to potentially sensitive information.

The vulnerability exists due to excessive data output in the error message. A remote user having an UPDATE privilege on a partitioned table but lacking the SELECT privilege on some column may be able to acquire denied-column values from an error message. This vulnerability is similar to #VU30418.

Mitigation

Update the affected package postgresql12 to the latest version.

Vulnerable software versions

SUSE Linux Enterprise Software Development Kit: 12-SP5

SUSE Linux Enterprise Server: 12-SP5

postgresql12-docs: before 12.7-3.15.3

postgresql12-server-debuginfo: before 12.7-3.15.3

postgresql12-server: before 12.7-3.15.3

postgresql12-pltcl-debuginfo: before 12.7-3.15.3

postgresql12-pltcl: before 12.7-3.15.3

postgresql12-plpython-debuginfo: before 12.7-3.15.3

postgresql12-plpython: before 12.7-3.15.3

postgresql12-plperl-debuginfo: before 12.7-3.15.3

postgresql12-plperl: before 12.7-3.15.3

postgresql12-debuginfo: before 12.7-3.15.3

postgresql12-contrib-debuginfo: before 12.7-3.15.3

postgresql12-contrib: before 12.7-3.15.3

postgresql12: before 12.7-3.15.3

postgresql12-server-devel-debuginfo: before 12.7-3.15.3

postgresql12-server-devel: before 12.7-3.15.3

postgresql12-devel-debuginfo: before 12.7-3.15.3

postgresql12-devel: before 12.7-3.15.3

postgresql12-debugsource: before 12.7-3.15.3

External links

http://www.suse.com/support/update/announcement/2021/suse-su-20211783-1/

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.