Security update for libredwg (moderate)

An update that solves 17 vulnerabilities and has one errata
is now available.

Description:

This update for libredwg fixes the following issues:

libredwg was updated to release 0.9.3:

• Added the -x,–extnames option to dwglayers for r13-r14 DWGs.
• Fixed some leaks: SORTENTSTABLE, PROXY_ENTITY.ownerhandle for r13.
• Add DICTIONARY.itemhandles[] for r13 and r14.
• Fixed some dwglayers null pointer derefs, and flush its output for each
  layer.
• Added several overflow checks from fuzzing [CVE-2019-20010,
  boo#1159825], [CVE-2019-20011, boo#1159826], [CVE-2019-20012,
  boo#1159827], [CVE-2019-20013, boo#1159828], [CVE-2019-20014,
  boo#1159831], [CVE-2019-20015, boo#1159832]
• Disallow illegal SPLINE scenarios [CVE-2019-20009, boo#1159824]

Update to release 0.9.1:

• Fixed more null pointer dereferences, overflows, hangs and memory leaks
  for fuzzed (i.e. illegal) DWGs.

Update to release 0.9 [boo#1154080]:

• Added the DXF importer, using the new dynapi and the r2000 encoder. Only
  for r2000 DXFs.
• Added utf8text conversion functions to the dynapi.
• Added 3DSOLID encoder.
• Added APIs to find handles for names, searching in tables and dicts.
• API breaking changes - see NEWS file in package.
• Fixed null pointer dereferences, and memory leaks (except DXF importer)
  [boo#1129868, CVE-2019-9779] [boo#1129869, CVE-2019-9778] [boo#1129870,
  CVE-2019-9777] [boo#1129873, CVE-2019-9776] [boo#1129874, CVE-2019-9773]
  [boo#1129875, CVE-2019-9772] [boo#1129876, CVE-2019-9771] [boo#1129878,
  CVE-2019-9775] [boo#1129879, CVE-2019-9774] [boo#1129881, CVE-2019-9770]

Update to 0.8:

• add a new dynamic API, read and write all header and object fields by
  name
• API breaking changes
• Fix many errors in DXF output
• Fix JSON output
• Many more bug fixes to handle specific object types

This update was imported from the openSUSE:Leap:15.1:Update update project.

Patch Instructions:

To install this openSUSE Security Update use the SUSE recommended installation methods
like YaST online_update or “zypper patch”.

Alternatively you can run the command listed for your product:

• openSUSE Backports SLE-15-SP1:

  zypper in -t patch openSUSE-2020-95=1