[arch-security] [ASA-201705-24] postgresql-libs: man-in-the-middle

[Remi Gacogne]

Arch Linux Security Advisory ASA-201705-24
==========================================

Severity: High
Date    : 2017-05-30
CVE-ID  : CVE-2017-7485
Package : postgresql-libs
Type    : man-in-the-middle
Remote  : Yes
Link    : https://security.archlinux.org/AVG-280

Summary
=======

The package postgresql-libs before version 9.6.3-1 is vulnerable to
man-in-the-middle.

Resolution
==========

Upgrade to 9.6.3-1.

# pacman -Syu "postgresql-libs>=9.6.3-1"

The problem has been fixed upstream in version 9.6.3.

Workaround
==========

None.

Description
===========

A security issue has been found in the libpq component of PostgreSQL <
9.6.3, where the PGREQUIRESSL was no longer enforcing a SSL/TLS
connection to a PostgreSQL server. An active Man-in-the-Middle attacker
could use this flaw to strip the SSL/TLS protection from a connection
between a client and a server.

Impact
======

A remote attacker in position of man-in-the-middle can intercept and
alter every communication between a vulnerable client and a server.

References
==========

https://www.postgresql.org/about/news/1746/
https://security.archlinux.org/CVE-2017-7485

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