#VU6892 Information disclosure in PostgreSQL - CVE-2017-7484

Vulnerability identifier: #VU6892

Vulnerability risk: Low

CVSSv4.0: 1.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2017-7484

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 authenticated attacker to obtain potentially sensitive information on the target system.

The weakness exists due to improper privilege checking before providing information from pg_statistic. A remote attacker can send a specially crafted request to bypass SELECT privilege checks, cause memory leak and steal some information from ostensibly restricted tables.

Successful exploitation of the vulnerability results in information disclosure.

Mitigation
Update to versions 9.2.21, 9.3.17, 9.4.12, 9.5.7, 9.6.3.

Vulnerable software versions

PostgreSQL: 9.2.1 - 9.2.20, 9.3.1 - 9.3.16, 9.4.0 - 9.4.11, 9.5.1 - 9.5.6, 9.6.0 - 9.6.2

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External links
https://www.postgresql.org/about/news/1746/

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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.