Security update for squid

This update for squid to version 4.9 fixes the following issues:

Security issues fixed:

- CVE-2019-13345: Fixed multiple cross-site scripting vulnerabilities in cachemgr.cgi (bsc#1140738).
- CVE-2019-12526: Fixed potential remote code execution during URN processing (bsc#1156326).
- CVE-2019-12523,CVE-2019-18676: Fixed multiple improper validations in URI processing (bsc#1156329).
- CVE-2019-18677: Fixed Cross-Site Request Forgery in HTTP Request processing (bsc#1156328).
- CVE-2019-18678: Fixed incorrect message parsing which could have led to HTTP request splitting issue (bsc#1156323).
- CVE-2019-18679: Fixed information disclosure when processing HTTP Digest Authentication (bsc#1156324).

Other issues addressed:

* Fixed DNS failures when peer name was configured with any upper case characters
* Fixed several rock cache_dir corruption issues

This update was imported from the SUSE:SLE-15:Update update project.

Fixed bugs
bnc#1141330
VUL-0: CVE-2019-12527: squid: missing check of the decoded length when checking basic authentication leads to heap-based buffer overflow with user controlled data
bnc#1141329
VUL-1: CVE-2019-12529: squid, squid3: When Squid is configured to use Basic Authentication, the Proxy-Authorization header is parsed via uudecode. uu
bnc#1133089
Squid Proxy crashing with assertion failed: stmem.cc:98
bnc#1141442
VUL-1: CVE-2019-12854: squid: Denial of Service issue in cachemgr.cgi
bnc#1141332
VUL-0: CVE-2019-12525: squid,squid3: improper check of single quote leads to memcpy of minus 1
bnc#1156326
VUL-0: CVE-2019-12526: squid,squid3: possible remote code execution attack when processing URN
bnc#1156328
VUL-0: CVE-2019-18677: squid,squid3: incorrect message processing can lead to inappropriately redirect traffic
bnc#1156324
VUL-0: CVE-2019-18679: squid,squid3: information disclosure when processing HTTP Digest Authentication
bnc#1140738
VUL-0: CVE-2019-13345: squid,squid3: XSS via user_name or auth parameter in cachemgr.cgi
bnc#1156323
VUL-0: CVE-2019-18678: squid,squid3: incorrect message parsing leads to HTTP request splitting issue
bnc#1156329
VUL-0: CVE-2019-12523,CVE-2019-18676: squid,squid3: improper input validation can lead to access to restricted HTTP servers or denial of service
Selected Binaries
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