Red Hat Software Collections update for rh-postgresql12-postgresql



Risk Medium
Patch available YES
Number of vulnerabilities 3
CVE-ID CVE-2021-23214
CVE-2021-23222
CVE-2021-3677
CWE-ID CWE-311
CWE-401
Exploitation vector Network
Public exploit N/A
Vulnerable software
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rh-postgresql12-postgresql (Red Hat package)
Operating systems & Components / Operating system package or component

Red Hat Software Collections
Universal components / Libraries / Software for developers

Vendor Red Hat Inc.

Security Bulletin

This security bulletin contains information about 3 vulnerabilities.

1) Missing Encryption of Sensitive Data

EUVDB-ID: #VU58113

Risk: Medium

CVSSv3.1: 5.9 [CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-23214

CWE-ID: CWE-311 - Missing Encryption of Sensitive Data

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform MitM attack.

The vulnerability exists due to the way PostgreSQL handles encrypted connections. When the server is configured to use trust authentication with a clientcert requirement or to use cert authentication, a man-in-the-middle attacker can inject arbitrary SQL queries when a connection is first established, despite the use of SSL certificate verification and encryption.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

rh-postgresql12-postgresql (Red Hat package): 12.4-1.el7 - 12.7-1.el7

Red Hat Software Collections: 1 for RHEL 7

CPE2.3 External links

http://access.redhat.com/errata/RHSA-2021:5197


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the local network (LAN).

Is there known malware, which exploits this vulnerability?

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

2) Missing Encryption of Sensitive Data

EUVDB-ID: #VU58114

Risk: Medium

CVSSv3.1: 5.9 [CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-23222

CWE-ID: CWE-311 - Missing Encryption of Sensitive Data

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform MitM attack.

The vulnerability exists due to the way the libpq process in PostgreSQL handles encrypted connections. A man-in-the-middle attacker can inject false responses to the client's first few queries, despite the use of SSL certificate verification and encryption. The attacker can exfiltrate the client's password or other confidential data that might be transmitted early in a session.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

rh-postgresql12-postgresql (Red Hat package): 12.4-1.el7 - 12.7-1.el7

Red Hat Software Collections: 1 for RHEL 7

CPE2.3 External links

http://access.redhat.com/errata/RHSA-2021:5197


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the local network (LAN).

Is there known malware, which exploits this vulnerability?

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

3) Memory leak

EUVDB-ID: #VU59043

Risk: Low

CVSSv3.1: 4.7 [CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:L/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-3677

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

Exploit availability: No

Description

The vulnerability allows a remote user to perform DoS attack or gain access to sensitive information.

The vulnerability exists due memory leak during parallel sort operations. A remote user can force the application to leak memory and perform denial of service attack or read arbitrary memory parts on the system.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

rh-postgresql12-postgresql (Red Hat package): 12.4-1.el7 - 12.7-1.el7

Red Hat Software Collections: 1 for RHEL 7

CPE2.3 External links

http://access.redhat.com/errata/RHSA-2021:5197


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.



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