squid security update

CentOS Errata and Security Advisory CESA-2011:1791

Squid is a high-performance proxy caching server for web clients,
supporting FTP, Gopher, and HTTP data objects.

An input validation flaw was found in the way Squid calculated the total
number of resource records in the answer section of multiple name server
responses. An attacker could use this flaw to cause Squid to crash.
(CVE-2011-4096)

Users of squid should upgrade to this updated package, which contains a
backported patch to correct this issue. After installing this update, the
squid service will be restarted automatically.

Merged security bulletin from advisories:
https://lists.centos.org/pipermail/centos-announce/2011-December/080516.html

Affected packages:
squid

Upstream details at:
https://access.redhat.com/errata/RHSA-2011:1791