update for squid

This squid update includes several security fixes and
minor changes.

- squid-2.7.x-bnc829084-CVE-2013-4115-BO_request_handling.diff
Squid advisory SQUID-2013_2, CVE-2013-4115, [bnc#829084]
Specially crafted http requests can trigger a buffer overflow
when squid attempts to resolve an overly long hostname.
- squid-2.7.x-bnc796999-bnc794954-CVE-2012-5643-CVE-2013-0188-cachemgr_cgi_dos.diff
memory leak in cachemgr.cgi known as CVE-2013-0189, which is the
underfixed CVE-2012-5643 problem. [bnc#796999] [bnc#794954]
- run logrotate as squid:nogroup [bnc#677335]

Fixed bugs
bnc#794954
VUL-0: CVE-2012-5643: squid: DoS via invalid Content-Length headers or via memory leaks
bnc#796999
VUL-0: squid: CVE-2013-0189: Underfixed CVE-2012-5643 in Squids cachemgr.cgi
bnc#677335
VUL-0: logrotate: issues with service owned directories
bnc#829084
VUL-1: CVE-2013-4115: squid: SQUID-2013:2: buffer overflow in HTTP request handling
Selected Binaries
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