#VU20004 Information disclosure in PostgreSQL - CVE-2019-10209

Vulnerability identifier: #VU20004

Vulnerability risk: Low

CVSSv4.0: 0.6 [CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2019-10209

CWE-ID: CWE-200

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
PostgreSQL
Server applications / Database software

Vendor: PostgreSQL Global Development Group

Description

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

The vulnerability exists due to way PostgreSQL processes user-defined hash equality operators. A remote attacker can under certain circumstances read arbitrary bytes from server memory.

Note, exploitation of this vulnerability requires a superuser to create unusual operators.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

PostgreSQL: 11.0 - 11.4

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External links
https://www.postgresql.org/about/news/1960/

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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.