#VU40401 Permissions, Privileges, and Access Controls in PostgreSQL - CVE-2016-3065

Vulnerability identifier: #VU40401

Vulnerability risk: High

CVSSv4.0: 6.8 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber]

CVE-ID: CVE-2016-3065

CWE-ID: CWE-264

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
PostgreSQL
Server applications / Database software

Vendor: PostgreSQL Global Development Group

Description

The vulnerability allows a remote non-authenticated attacker to #BASIC_IMPACT#.

The (1) brin_page_type and (2) brin_metapage_info functions in the pageinspect extension in PostgreSQL before 9.5.x before 9.5.2 allows attackers to bypass intended access restrictions and consequently obtain sensitive server memory information or cause a denial of service (server crash) via a crafted bytea value in a BRIN index page.

Mitigation
Install update from vendor's website.

Vulnerable software versions

PostgreSQL: 9.5 - 9.5.1

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External links
https://git.postgresql.org/gitweb/?p=postgresql.git;a=commitdiff;h=bf78a6f107949fdfb513d1b45e30cefe04e09e4f
https://www.postgresql.org/about/news/1656/
https://www.postgresql.org/docs/current/static/release-9-5-2.html
https://www.securitytracker.com/id/1035468

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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.