finch, libpurple, pidgin security update

CentOS Errata and Security Advisory CESA-2009:1536

Pidgin is an instant messaging program which can log in to multiple
accounts on multiple instant messaging networks simultaneously. The AOL
Open System for Communication in Realtime (OSCAR) protocol is used by the
AOL ICQ and AIM instant messaging systems.

An invalid pointer dereference bug was found in the way the Pidgin OSCAR
protocol implementation processed lists of contacts. A remote attacker
could send a specially-crafted contact list to a user running Pidgin,
causing Pidgin to crash. (CVE-2009-3615)

These packages upgrade Pidgin to version 2.6.3. Refer to the Pidgin release
notes for a full list of changes: http://developer.pidgin.im/wiki/ChangeLog

All Pidgin users should upgrade to these updated packages, which correct
this issue. Pidgin must be restarted for this update to take effect.

Merged security bulletin from advisories:
https://lists.centos.org/pipermail/centos-announce/2009-October/078428.html
https://lists.centos.org/pipermail/centos-announce/2009-October/078429.html
https://lists.centos.org/pipermail/centos-announce/2009-October/078454.html
https://lists.centos.org/pipermail/centos-announce/2009-October/078455.html

Affected packages:
finch
finch-devel
libpurple
libpurple-devel
libpurple-perl
libpurple-tcl
pidgin
pidgin-devel
pidgin-perl

Upstream details at:
https://access.redhat.com/errata/RHSA-2009:1536