squirrelmail security update

CentOS Errata and Security Advisory CESA-2006:0547

SquirrelMail is a standards-based webmail package written in PHP4.

A local file disclosure flaw was found in the way SquirrelMail loads
plugins. In SquirrelMail 1.4.6 or earlier, if register_globals is on and
magic_quotes_gpc is off, it became possible for an unauthenticated remote
user to view the contents of arbitrary local files the web server has
read-access to. This configuration is neither default nor safe, and
configuring PHP with the register_globals set on is dangerous and not
recommended. (CVE-2006-2842)

Users of SquirrelMail should upgrade to this erratum package, which
contains a backported patch to correct this issue.

Merged security bulletin from advisories:
https://lists.centos.org/pipermail/centos-announce/2006-July/075142.html
https://lists.centos.org/pipermail/centos-announce/2006-July/075143.html
https://lists.centos.org/pipermail/centos-announce/2006-July/075144.html
https://lists.centos.org/pipermail/centos-announce/2006-July/075145.html
https://lists.centos.org/pipermail/centos-announce/2006-July/075146.html
https://lists.centos.org/pipermail/centos-announce/2006-July/075147.html
https://lists.centos.org/pipermail/centos-announce/2006-July/075148.html
https://lists.centos.org/pipermail/centos-announce/2006-July/075149.html
https://lists.centos.org/pipermail/centos-announce/2006-July/075150.html

Affected packages:
squirrelmail

Upstream details at:
https://access.redhat.com/errata/RHSA-2006:0547