Security update for ghostscript

This update for ghostscript to version 9.25 fixes the following issues:

These security issues were fixed:

- CVE-2018-17183: Remote attackers were be able to supply crafted PostScript to
potentially overwrite or replace error handlers to inject code (bsc#1109105)
- CVE-2018-15909: Prevent type confusion using the .shfill operator that could
have been used by attackers able to supply crafted PostScript files to crash
the interpreter or potentially execute code (bsc#1106172).
- CVE-2018-15908: Prevent attackers that are able to supply malicious
PostScript files to bypass .tempfile restrictions and write files
(bsc#1106171).
- CVE-2018-15910: Prevent a type confusion in the LockDistillerParams parameter
that could have been used to crash the interpreter or execute code
(bsc#1106173).
- CVE-2018-15911: Prevent use uninitialized memory access in the aesdecode
operator that could have been used to crash the interpreter or potentially
execute code (bsc#1106195).
- CVE-2018-16513: Prevent a type confusion in the setcolor function that could
have been used to crash the interpreter or possibly have unspecified other
impact (bsc#1107412).
- CVE-2018-16509: Incorrect "restoration of privilege" checking during handling
of /invalidaccess exceptions could be have been used by attackers able to
supply crafted PostScript to execute code using the "pipe" instruction
(bsc#1107410).
- CVE-2018-16510: Incorrect exec stack handling in the "CS" and "SC" PDF
primitives could have been used by remote attackers able to supply crafted PDFs
to crash the interpreter or possibly have unspecified other impact
(bsc#1107411).
- CVE-2018-16542: Prevent attackers able to supply crafted PostScript files
from using insufficient interpreter stack-size checking during error handling
to crash the interpreter (bsc#1107413).
- CVE-2018-16541: Prevent attackers able to supply crafted PostScript files
from using incorrect free logic in pagedevice replacement to crash the
interpreter (bsc#1107421).
- CVE-2018-16540: Prevent use-after-free in copydevice handling that could have
been used to crash the interpreter or possibly have unspecified other impact
(bsc#1107420).
- CVE-2018-16539: Prevent attackers able to supply crafted PostScript files
from using incorrect access checking in temp file handling to disclose contents
of files on the system otherwise not readable (bsc#1107422).
- CVE-2018-16543: gssetresolution and gsgetresolution allowed attackers to have
an unspecified impact (bsc#1107423).
- CVE-2018-16511: A type confusion in "ztype" could have been used by remote
attackers able to supply crafted PostScript to crash the interpreter or
possibly have unspecified other impact (bsc#1107426).
- CVE-2018-16585: The .setdistillerkeys PostScript command was accepted even
though it is not intended for use during document processing (e.g., after the
startup phase). This lead to memory corruption, allowing remote attackers able
to supply crafted PostScript to crash the interpreter or possibly have
unspecified other impact (bsc#1107581).
- CVE-2018-16802: Incorrect "restoration of privilege" checking when running
out of stack during exception handling could have been used by attackers able
to supply crafted PostScript to execute code using the "pipe" instruction. This
is due to an incomplete fix for CVE-2018-16509 (bsc#1108027).

These non-security issues were fixed:

* Fixes problems with argument handling, some unintended results of the
security fixes to the SAFER file access restrictions (specifically accessing
ICC profile files).
* Avoid that ps2epsi fails with 'Error: /undefined in --setpagedevice--'

For additional changes please check http://www.ghostscript.com/doc/9.25/News.htm
and the changes file of the package.

This update was imported from the SUSE:SLE-12:Update update project.

Fixed bugs
bnc#1106171
VUL-0: CVE-2018-15908: ghostscript: .tempfile file permission issues (699657)
bnc#1106172
VUL-0: CVE-2018-15909: ghostscript: shading_param incomplete type checking (699660)
bnc#1106173
VUL-0: CVE-2018-15910: ghostscript: LockDistillerParams type confusion (699656)
bnc#1106195
VUL-0: CVE-2018-15911: ghostscript: uninitialized memory access in the aesdecode operator
bnc#1107410
VUL-0: CVE-2018-16509: ghostscript: /invalidaccess bypass after failed restore (699654)
bnc#1107411
VUL-0: CVE-2018-16510: ghostscript: Incorrect exec stack handling in the "CS" and "SC" PDF primitives (699671)
bnc#1107412
VUL-0: CVE-2018-16513: ghostscript: setcolor missing type check (699655)
bnc#1107413
VUL-0: CVE-2018-16542: ghostscript: .definemodifiedfont memory corruption if /typecheck is handled (699668)
bnc#1107420
VUL-0: CVE-2018-16540: ghostscript: use-after-free in copydevice handling (699661)
bnc#1107421
VUL-0: CVE-2018-16541: ghostscript: incorrect free logic in pagedevice replacement (699664)
bnc#1107422
VUL-0: CVE-2018-16539: ghostscript: incorrect access checking in temp file handling to disclose contents of files (699658)
bnc#1107423
VUL-0: CVE-2018-16543: ghostscript: gssetresolution and gsgetresolution allow for unspecified impact (699670)
bnc#1107426
VUL-0: CVE-2018-16511: ghostscript: type confusion in"ztype" could be used by remote attackers able to supply crafted PostScript to crash the interpreter or possibly have unspec
bnc#1107581
VUL-0: CVE-2018-16585: ghostscript,ghostscript-library: .setdistillerkeys PostScript command is accepted even though it is not intended for use
bnc#1108027
VUL-0: CVE-2018-16802: ghostscript,ghostscript-library: An issue was discovered in Artifex Ghostscript before 9.25. Incorrect"restoration of privilege" checking when running out of stack during exceptionhandling could be used by attackers
bnc#1109105
VUL-0: CVE-2018-17183: ghostscript,ghostscript-library: remote attackers could be able to supply crafted PostScript to potentially overwrite or replace error handlers to inject code
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