openEuler update for postgresql

1) Security restrictions bypass

EUVDB-ID: #VU50656

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-2021-20229

CWE-ID: CWE-264 - Permissions, Privileges, and Access Controls

Exploit availability: No

Description

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

The vulnerability exists due to application does not properly impose security restrictions. A user having a SELECT privilege on an individual column can craft a special query that returns all columns of the table. Additionally, a stored view that uses column-level privileges will have incomplete column-usage bitmaps. In installations that depend on column-level permissions for security, it is recommended to execute CREATE OR REPLACE on all user-defined views to force them to be re-parsed.

Mitigation

Install updates from vendor's repository.

Vulnerable software versions

openEuler: 20.03 LTS - 20.03 LTS SP1

postgresql-static: before 10.5-20

postgresql-devel: before 10.5-20

postgresql-test-rpm-macros: before 10.5-20

postgresql-contrib: before 10.5-20

postgresql-pltcl: before 10.5-20

postgresql-server: before 10.5-20

postgresql-libs: before 10.5-20

postgresql-plpython3: before 10.5-20

postgresql-plperl: before 10.5-20

postgresql-debugsource: before 10.5-20

postgresql-help: before 10.5-20

postgresql-debuginfo: before 10.5-20

postgresql-test: before 10.5-20

postgresql: before 10.5-20

External links

http://www.openeuler.org/en/security/security-bulletins/detail/?id=openEuler-SA-2021-1124

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.