Vulnerability identifier: #VU20004
Vulnerability risk: Low
CVSSv3.1: 2.7 [CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N/E:U/RL:O/RC:C]
CVE-ID:
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
External links
http://www.postgresql.org/about/news/1960/
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.