Red Hat Enterprise Linux 8.2 update for libpq



Published: 2021-01-12
Risk Medium
Patch available YES
Number of vulnerabilities 2
CVE-ID CVE-2020-25694
CVE-2020-25696
CWE-ID CWE-284
CWE-20
Exploitation vector Network
Public exploit N/A
Vulnerable software
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libpq (Red Hat package)
Operating systems & Components / Operating system package or component

Red Hat Enterprise Linux Server - TUS
Operating systems & Components / Operating system

Vendor Red Hat Inc.

Security Bulletin

This security bulletin contains information about 2 vulnerabilities.

1) Improper access control

EUVDB-ID: #VU48437

Risk: Medium

CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2020-25694

CWE-ID: CWE-284 - Improper Access Control

Exploit availability: No

Description

The vulnerability allows a remote attacker to gain unauthorized access to otherwise restricted functionality.

The vulnerability exists due to improper access restrictions. A remote attacker can perform a man-in-the-middle attack or observe clear-text transmissions and downgrade connection security settings.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

libpq (Red Hat package): 12.5-1.el8_0

Red Hat Enterprise Linux Server - TUS: 8.2

External links

http://access.redhat.com/errata/RHSA-2021:0057


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) Input validation error

EUVDB-ID: #VU48438

Risk: Medium

CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2020-25696

CWE-ID: CWE-20 - Improper input validation

Exploit availability: No

Description

The vulnerability allows a remote attacker to compromise the target system.

The vulnerability exists due to the "\gset" meta-command does not distinguish variables that control psql behavior. A remote attacker can execute arbitrary code as the operating system account.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

libpq (Red Hat package): 12.5-1.el8_0

Red Hat Enterprise Linux Server - TUS: 8.2

External links

http://access.redhat.com/errata/RHSA-2021:0057


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.



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